US3602305A - Retrievable well packer - Google Patents
Retrievable well packer Download PDFInfo
- Publication number
- US3602305A US3602305A US889658A US3602305DA US3602305A US 3602305 A US3602305 A US 3602305A US 889658 A US889658 A US 889658A US 3602305D A US3602305D A US 3602305DA US 3602305 A US3602305 A US 3602305A
- Authority
- US
- United States
- Prior art keywords
- expander
- mandrel
- body member
- sleeve
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 claims abstract description 47
- 238000004873 anchoring Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012858 resilient material Substances 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1293—Packers; Plugs with mechanical slips for hooking into the casing with means for anchoring against downward and upward movement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers
Definitions
- a well packer which is provided with upper and lower slips and expanders for permanent anchoring in a casing, is also provided with retrieval means by which the slips may be disengaged without damage to either the packer or the casing.
- a special slotted retrieval sleeve or the like is provided for supporting the upper ends of a plurality of spacing bars wedged longitudinally between the elastic packing bodies and the upper expander. After the packer has been anchored, the sleeve may be lifted to remove the support provided to the upper ends of the bars, whereupon these ends of the bars will be driven loosely under the upper expander. The upper expander will thereafter not support the upper slip, and the packing bodies can relax to enable retrieval of the packer from the well.
- This invention relates to well packers and the like, and more particularly relates to permanently anchored packers which are adapted to be retrieved without damage to either the well or the packer.
- the packers have been both anchorable and retrievable, but either special setting techniques or equipment have been required to install the packer, or else special retrieval techniques and equipment have been necessary. In these cases, it has often cost more to retrieve such a packer than it would have cost to drill through and destroy it.
- Other packers such as that depicted in U.S. Pat. No. 3,398,795, have been capable of being installed and retrieved by special setting and removal equipment, however, such equipment and the packer itself are quite complicated and expensive.
- a well packer assembly is provided with one or more elastic annular packing bodies, and with upper and lower slip and slip-expam ders for anchoring the packing bodies into locked fluidtight engagement with the inside surface of a casing in a generally conventional manner.
- the packer assembly is further provided with an assembly of spacing bars and a sleeve member of special configuration which may be engaged and raised to disengage the slips and expanders without significant damage to any portion of the packer assembly except for expendable shear pins and the like.
- the sleeve is provided with spaced-apart upper and lower longitudinal slots and is mounted at the upper end of the mandrel of the packer assembly.
- the upper slips are slidably mounted on the upper end of the special release sleeve, and further provided with splines or inwardly directed shoulder portions extending in the upper slots of the sleeve, whereby the sleeve may be moved upwardly between the upper slips and the mandrel while the slips are wedged between the casing and the upper expander.
- the upper expander is similarly provided with inwardly directed shoulder portions extending between the lower slots in the release sleeve, and a plurality of spacing bars are mounted longitudinally between the upper expander and the elastic bodies with their upper ends jammed against abutment surfaces on the lower expander and the release sleeve.
- the lower ends of the spacing bars are preferably wedged adjacent the surface of the mandrel, and thus the bars will be tilted upwardly and outwardly of the mandrel when the packer assembly is fully installed in the casing.
- the upper end of the release sleeve is also preferably provided with inside ratchet threads or other suitable means for receiving and engaging the lower end of a grapple-type retrieving member. Accordingly, after the packing assembly has been permanently installed in a casing, it may be easily dislodged and removed by merely stabbing the retrieving member into the upper end of the sleeve, and by thereafter lifting the sleeve a limited distance sufficient to pull the lower end or edge of the sleeve from between the mandrel and the upperends of the spacing bars.
- the upper ends of the spacing bars are preferably canted downwardly and outwardly of the mandrel, the same as the edges of the upper expander against which the bars are jammed. As long as the lower edge of the sleeve is wedged between the mandrel and the upper ends of the spacing bars, however, the bars will remain wedged longitudinally between the elastic packing bodies and the upper expander.
- the sleeve when the sleeve is lifted free of the upper ends of the spacing bars, this removes their support, and the compressed packing bodies will relax sufficiently to drive the upper ends of the bars inwardly between the mandrel and the upper expander. This, in turn, completely releases the resistance to downward movement of the upper expander which upwardly wedges the upper slips against the inside surface of the casing. Accordingly, the sleeve may then be lifted a further distance sufficient to catch and lift the upper slips completely free of the upper expander without damage to either the expanders or the casing.
- the sleeve and upper slips may be interconnected such that sufficient upward travel of the sleeve will eventually engage and lift the packing assembly including the lower slips and expander out of the casing.
- FIG. 1 is a pictorial representation, partly in cross section, of a packing assembly embodying the concept of the present invention and disposed for permanent installation in a well casing or the like.
- FIG. 2 is a similar representation of the apparatus depicted in FIG. 1, illustrating the packing assembly after such installation.
- FIG. 3 is also a similar representation of the apparatus depicted in FIGS. 1 and 2, but illustrating the details and relative position of its various components after the packing assembly has been released from the casing.
- FIG. 4 is a pictorial representation of a preferred embodiment of the release sleeve hereinbefore described, and which is depicted in cross section in FIGS. l3.
- FIG. 5 is a cross-sectional representation of a portion of the apparatus depicted in FIG. 1.
- FIG. 6 is a cross-sectional representation of another portion of the apparatus depicted in FIG. 1.
- FIG. 7 is a cross-sectional representation of a further different portion of the apparatus depicted in FIG. 1.
- FIG. 8 is a cross-sectional representation of another different portion of the apparatus depicted in FIG. 1.
- FIG. 1 there may be seen a pictorial representation, partly in cross section, of a packing assembly disposed longitudinally in a well casing 2 or the like for permanent anchorage therein.
- the packing assembly may include a hollow tubular mandrel 11 having a special retrieval sleeve 9 slidably disposed about its upper end, and further having one or more elastic annular packing bodies circumferentially mounted about its exterior below the sleeve 9.
- An expandable annular upper slip 13 may be slidably positioned about the upper end of the mandrel 11 below a plurality of spaced-apart shoulder extensions 12, and an upper expander I4 is preferably disposed about the mandrel l1 and sleeve 9 below the upper slip 13.
- a lower slip expander 23 may be mounted about the mandrel 11 below the packing bodies 20 and above an expandable lower slip 24. More particularly, the lower edge of the lower expander 23 may be wedged between the mandrel l1 and the lower slip 24, and may be secured thereto by a shear pin 25 or other suitable means.
- the lower end of the mandrel l 1 may be provided with a conventional end collar 30, and a spring support collar 29 may be mounted abovethe end collar and secured to the mandrel l l by any suitable means such as a pin 28. 1
- the spring support collar 29 is provided with an interior annular cavity or recess for supporting a helical spring 26 having its upper end urged against a suitable spacer ring 32, or the like, positioned between the upper end of the spring support collar 29 and the lower abutting end of the lower slip 24.
- a stop ring 27 may be provided between the support collar 29 and the adjacent surface of the mandrel 11, which together with a stop ring 21 between the expander 23 and the mandrel prevent premature setting of the lower slip '24 and the packing 20 during running.
- An annular drive ring 22 may be located in an elongated recess about the mandrel ll to limit upward and downward travel of the lower expander 23.
- the apparatus preferably includes an annular abutment member 19 of conventional design mounted about the mandrel 11 immediately above the upper surface of the uppermost packing body 20.
- a plurality of rigid spacing bars 16 may be provided in groups at suitable locations about the exterior of the mandrel l1, and aligned between the upper expander 14 and the abutment member 19. More particularly, the lower ends of the spacing bars 19 may be seen to be seated adjacent the mandrel 11 in an annular internal recess in the abutment member 19 and may also be secured to the abutment member 19 by suitable pins 18 or the like.
- the upper ends of the spacing bars are preferably wedged between the lower tapered edges of the downwardly extending fingers of the retrieval sleeve 9 (see FIG. 4) and an internal annular recess in the upper expander 14.
- a suitable shear pin 17 or the like may be provided for linking the upper expander 1 to the sleeve 9.
- the packing assembly as depicted in FIG. 1 may be anchored by a conventional setting tool 3 comprising a compressional member 5 (shown in phantom lines) arranged to be driven downwardly against the upper surface of the upper slip l3, and a tension member 4 for drawing the mandrel 11 upwardly in the casing 2.
- the tension member 4 may be composed of an elongated member or bar disposed within the mandrel 11 and having a locking rim 7 at its lower end.
- a collet ring having a plurality of collet fingers 8 may be slidably disposed about the lower end of the tension member 4 with the tips of the fingers 8 locked to the locking rim 7 by one or more shear pins 6 and extending below the lower end of the mandrel ll.
- the packing as sembly depicted in FIG. 1 may be anchored in the casing 2 by simultaneously moving the compression member 5 downwardly through the casing 2 and drawing the tension member 4 upwardly therethrough. This will first cause the upper slip 13 to be shifted by the expander 14 into gripping engagement with the casing, whereupon the mandrel 11 will begin to travel upwardly.
- the sleeve 9 may be seen in FIG. 4 to have a plurality of equally spacedapart and aligned upper and lower extending fingers 37 and 35 respectively, which form upper and lower longitudinal slots 36 and 38.
- the upper ends of the fingers 37 may be seen to be provided with internal ratchet threads 10 to engage the end of a suitable retrieval tool, and the lower fingers 35 may be seen to be provided with tapered tips to slidably support the upper ends of the spacing barsl6 as hereinbefore described.
- the central annular or ringlike portions 34 of the sleeve 9 separates the upper and lower slots 36 and 38.
- the upper beveled ends of the spacing bars 16 are wedged between the tapered surfaces of the lower fingers 35 and against the correspondingly beveled inner surface 39 of the upper expander 14.
- FIG. 5 there may be seen a representation of the spacedapart, shoulderlike extensions 12 which are located to ride between the upper fingers 37 of the sleeve 9, and further located to be engaged by the upper slip 13 when the slip 13 is carried upward along the mandrel 11 by the sleeve 9, as will hereinafter be explained.
- FIG. 2 there may be seen a pictorial representation, partly in cross section, of the packing assembly depicted in FIG. 1 after such assembly has been anchored in the casing 2. More particularly, the upper slip 13 has been driven downwardly along the interior surface of the expander 14 and into gripping engagement with the casing 2. Similarly, the lower expander 23 may be seen to have been driven upwardly against the packing bodies 20 to compress and expand them outwardly against the interior surface of the casing 2. In this respect, the lower slip 24 will also be seen to have been wedged between the lower expander 23 and the casing 2, after severing of the connecting shear pin 25. After the upper and lower slips 13 and 24 have been anchored, and after the setting tool 3 has been removed from the casing 2,
- the well packer will remain immovable in the casing until it is desired to remove it.
- FIG. 3 there may be seen a similar representation of the apparatus depicted in FIGS. 1 and 2, wherein a retrieval tool 40 has been stabbed into the upper end of the special retrieval sleeve 9 for the purpose of engaging the threads 10.
- the retrieval tool 40 is drawn upwardly through the casing 2 a sufiicient distance
- the taper lower ends of the fingers 35 are first disconnected from the shear pin 17, and are thereafter drawn from under the upper ends of the outwardly directed spacing bars 16.
- decompression of the packing bodies will drive the upper ends of the spacing bars 16 under the upper expander 14, and release the compression loading in the system.
- the packing bodies 20 will completely relax to release the fluidtight engagement with the interior surface of the casing 2, and the upper expander 14 no longer supports the upper slip 13 with respect to the casing.
- the retrieval tool 40 may now be further lifted through the casing 2 until the central annular portion 34 of the sleeve 9 engages the interior abutting portions 41 of the upper slip l3. Upward travel of the retrieval tool 40 will then cause the sleeve 9 to carry the upper slip l3 completely free of the casing 2, and from the upper part of the upper expander 14.
- the packing bodies 20 may now be assumed to be fully relaxed and decompressed. However, the spring 26 may still be compressed sufficiently to drive the lower slip 24 upwardly into partial engagement between the casing 2 and the lower expander 23. Nevertheless, when the sleeve 9 has been raised sufficiently to drive the upper end of the upper slips 13 into abutting engagement with the lower side of the shoulders 12, this will cause the mandrel 11 to be lifted through the casing 2 and the stop ring 22 to lift the lower expander 23 out from underneath the lower slips 24. Then the entire assembly may be lifted free of the casing 2.
- a well packer apparatus comprising:
- packing means on said body member adapted to be compressed and expanded into sealing contact with a well casmg;
- upper slip and expander means for anchoring against upward movement of said body member in said casing
- lower slip and expander means for anchoring against downward movement of said body member in said casing
- support means on said body member for maintaining said upper slip and expander means in fixed, spaced relation to said packing means and for maintaining said packing means in sealing contact with said casing; and means for disabling said support means to enable the upper end portion of said packing means to move relatively toward said upper slip and expander means and to relieve said compression and expansion in said packing means.
- said disabling means includes a sleeve means slidably mounted on said body member and upwardly movable relative to said packing means for disabling said support means.
- a well packer apparatus comprising a mandrel
- annular body member formed of a resilient material and concentrically mounted on said mandrel
- lower slip means upwardly movable along said mandrel for wedging engagement between said lower expander and the inside surface of a well casing or the like
- a sleeve means slidably movable on said mandrel independently of said expander means and said slip means and having one end extending at least partially between said upper expander and said mandrel, and
- said support means comprises a plurality of rigid members disposed about said mandrel and each having one end adjacent said resilient body member and the other end wedged between said upper expander means and said end of said sleeve member.
- said sleeve member is adapted to engage and draw said upper slip means out of wedging engagement between said upper expander means and said well casing after said end of said sleeve member is removed from between said ends of said bar members and said mandrel.
- said sleeve member is further provided with a plurality of lower longitudinal slots extending partially along said sleeve member for accommodating said upper expander means.
Abstract
A well packer, which is provided with upper and lower slips and expanders for permanent anchoring in a casing, is also provided with retrieval means by which the slips may be disengaged without damage to either the packer or the casing. A special slotted retrieval sleeve or the like is provided for supporting the upper ends of a plurality of spacing bars wedged longitudinally between the elastic packing bodies and the upper expander. After the packer has been anchored, the sleeve may be lifted to remove the support provided to the upper ends of the bars, whereupon these ends of the bars will be driven loosely under the upper expander. The upper expander will thereafter not support the upper slip, and the packing bodies can relax to enable retrieval of the packer from the well.
Description
United States Patent [72] Inventor James W. Kisling, 111
' Houston, Tex. [21 Appl. No. 889,658 [22] Filed Dec. 31,1969 [4S] Patented Aug. 31, 1971 [73] Assignee Schlumberger Technology Corporation New York, N.Y.
[54] RETRIEVABLE WELL PACKER 12 Claims, 8 Drawing Figs. 52 us. or 116/134, 166/123 511* 1m.c| ..E2lb 23/06, E2 1 b 33/129 [50] Field ofSearch 166/134, 135,123,125,120,124
[56] References Cited UNITED STATES PATENTS 3,013,610 12/1961 Conradm. 166/134 3,215,207 11/1965 Sizer 166/134 X 3,374,837 3/1968 Page et al. 166/134 X 3,398,795 8/1968 Eliston.... 3,416,609 12/1968 Kilgore Primary ExaminerDavid H. Brown AI10rneys-Ernest Archambeau, .lr., Wm. Beard, Stewart F.
Moore, David L. Mosely, Edward M. Roney and William R. Sherman ABSTRACT: A well packer, which is provided with upper and lower slips and expanders for permanent anchoring in a casing, is also provided with retrieval means by which the slips may be disengaged without damage to either the packer or the casing. A special slotted retrieval sleeve or the like is provided for supporting the upper ends of a plurality of spacing bars wedged longitudinally between the elastic packing bodies and the upper expander. After the packer has been anchored, the sleeve may be lifted to remove the support provided to the upper ends of the bars, whereupon these ends of the bars will be driven loosely under the upper expander. The upper expander will thereafter not support the upper slip, and the packing bodies can relax to enable retrieval of the packer from the well.
PATENTED AUG31 1971 3,602,305
SHEET 2 UF 3 Q' no END 2: & i/
James W. Kislinq III F /G.3 INVENTOR ATTORNEYS PATENTEDAUBBHBTI 3.602.305
There are many instances such as production operations wherein it is desirable to define and segregate one portion of a borehole from another. In those instances wherein the borehole is lined with a steel casing or the like, this is achieved by setting a packer assembly in the casing at such depth as may be desired.
In some instances, it may be desired that the well be packed off" only temporarily, wherein in many other instances it is intended that the packer be permanently set in the well. So-called temporary packers are usually designed to be wedged in the casing in such manner as to resist movement in only one direction. This is because retrieval of a temporary packer is usually achieved by shifting in the opposite direction to disengage it from the interior of the casing or tubing. n the other hand, permanent" packers are wedged in the casing in a manner opposing movement in either direction. Hence, permanently anchored packers of conventional design cannot be dislodged without damage either to the casing or to the packer, inasmuch as movement of the packer tends to jam the slips more firmly into engagement with the casing.
It is common occurrence for 'it to become desirable to remove a packer that has been permanently installed. Since this usually requires a drilling operation and consequent destruction of the packer, this may be quite costly. Moreover it has become common to construct permanent packers or drillable materials so that they can be easily shattered by the drill bit. Although this provides a substantial saving insofar as drilling time is concerned, it has the disadvantage that a' frangible packer may be an inherently weaker packer. Furthermore, the fragments and other debris from the shattered packer tend to clutter the bottom of the borehole, and may interfere with subsequent operations. In addition, a permanent packer is an expensive piece of equipment as such.
There have been many attempts to provide a packer which is adapted to be anchored immovablyin the borehole, but which. is also adapted to be retrieved whenever desired without damage to either the packer or the interior of the borehole or casing. However, none of these retrieval per manent packers have met with complete acceptance by the oil and gas industry.
In many cases, the packers have been both anchorable and retrievable, but either special setting techniques or equipment have been required to install the packer, or else special retrieval techniques and equipment have been necessary. In these cases, it has often cost more to retrieve such a packer than it would have cost to drill through and destroy it. Other packers such as that depicted in U.S. Pat. No. 3,398,795, have been capable of being installed and retrieved by special setting and removal equipment, however, such equipment and the packer itself are quite complicated and expensive.
These and other disadvantages of the prior art are completely overcome with the present invention, however, and novel packer means is provided herein which may be anchored irnmovably in a well casing or the like by conventional setting techniques, but which may also be adapted to be selectively retrieved by conventional retrieval techniques and equipment without damage to either the packer assembly or the casing.
SUMMARY OF INVENTION In a preferred embodiment of the present invention, a well packer assembly is provided with one or more elastic annular packing bodies, and with upper and lower slip and slip-expam ders for anchoring the packing bodies into locked fluidtight engagement with the inside surface of a casing in a generally conventional manner. However, the packer assembly is further provided with an assembly of spacing bars and a sleeve member of special configuration which may be engaged and raised to disengage the slips and expanders without significant damage to any portion of the packer assembly except for expendable shear pins and the like.
More particularly, the sleeve is provided with spaced-apart upper and lower longitudinal slots and is mounted at the upper end of the mandrel of the packer assembly. The upper slips are slidably mounted on the upper end of the special release sleeve, and further provided with splines or inwardly directed shoulder portions extending in the upper slots of the sleeve, whereby the sleeve may be moved upwardly between the upper slips and the mandrel while the slips are wedged between the casing and the upper expander. The upper expander is similarly provided with inwardly directed shoulder portions extending between the lower slots in the release sleeve, and a plurality of spacing bars are mounted longitudinally between the upper expander and the elastic bodies with their upper ends jammed against abutment surfaces on the lower expander and the release sleeve. The lower ends of the spacing bars are preferably wedged adjacent the surface of the mandrel, and thus the bars will be tilted upwardly and outwardly of the mandrel when the packer assembly is fully installed in the casing.
The upper end of the release sleeve is also preferably provided with inside ratchet threads or other suitable means for receiving and engaging the lower end of a grapple-type retrieving member. Accordingly, after the packing assembly has been permanently installed in a casing, it may be easily dislodged and removed by merely stabbing the retrieving member into the upper end of the sleeve, and by thereafter lifting the sleeve a limited distance sufficient to pull the lower end or edge of the sleeve from between the mandrel and the upperends of the spacing bars.
The upper ends of the spacing bars are preferably canted downwardly and outwardly of the mandrel, the same as the edges of the upper expander against which the bars are jammed. As long as the lower edge of the sleeve is wedged between the mandrel and the upper ends of the spacing bars, however, the bars will remain wedged longitudinally between the elastic packing bodies and the upper expander.
On the other hand, when the sleeve is lifted free of the upper ends of the spacing bars, this removes their support, and the compressed packing bodies will relax sufficiently to drive the upper ends of the bars inwardly between the mandrel and the upper expander. This, in turn, completely releases the resistance to downward movement of the upper expander which upwardly wedges the upper slips against the inside surface of the casing. Accordingly, the sleeve may then be lifted a further distance sufficient to catch and lift the upper slips completely free of the upper expander without damage to either the expanders or the casing.
The foregoing action will, of course, permit complete upward relaxation of the elastic packing bodies and this, in turn, removes the downward pressure which jams the lower slips between the casing and the lower expander. Accordingly, the sleeve and upper slips may be interconnected such that sufficient upward travel of the sleeve will eventually engage and lift the packing assembly including the lower slips and expander out of the casing.
These and other features and advantages of the present invention will be apparent from the following detailed description wherein reference is made to the figures of the accompanying drawings.
IN THE DRAWINGS:
FIG. 1 is a pictorial representation, partly in cross section, of a packing assembly embodying the concept of the present invention and disposed for permanent installation in a well casing or the like.
FIG. 2 is a similar representation of the apparatus depicted in FIG. 1, illustrating the packing assembly after such installation.
FIG. 3 is also a similar representation of the apparatus depicted in FIGS. 1 and 2, but illustrating the details and relative position of its various components after the packing assembly has been released from the casing.
FIG. 4 is a pictorial representation of a preferred embodiment of the release sleeve hereinbefore described, and which is depicted in cross section in FIGS. l3.
FIG. 5 is a cross-sectional representation of a portion of the apparatus depicted in FIG. 1.
FIG. 6 is a cross-sectional representation of another portion of the apparatus depicted in FIG. 1.
FIG. 7 is a cross-sectional representation of a further different portion of the apparatus depicted in FIG. 1.
FIG. 8 is a cross-sectional representation of another different portion of the apparatus depicted in FIG. 1.
DETAILED DESCRIPTION Referring now to FIG. 1, there may be seen a pictorial representation, partly in cross section, of a packing assembly disposed longitudinally in a well casing 2 or the like for permanent anchorage therein. In particular, the packing assembly may include a hollow tubular mandrel 11 having a special retrieval sleeve 9 slidably disposed about its upper end, and further having one or more elastic annular packing bodies circumferentially mounted about its exterior below the sleeve 9. An expandable annular upper slip 13 may be slidably positioned about the upper end of the mandrel 11 below a plurality of spaced-apart shoulder extensions 12, and an upper expander I4 is preferably disposed about the mandrel l1 and sleeve 9 below the upper slip 13. A lower slip expander 23 may be mounted about the mandrel 11 below the packing bodies 20 and above an expandable lower slip 24. More particularly, the lower edge of the lower expander 23 may be wedged between the mandrel l1 and the lower slip 24, and may be secured thereto by a shear pin 25 or other suitable means. The lower end of the mandrel l 1 may be provided with a conventional end collar 30, and a spring support collar 29 may be mounted abovethe end collar and secured to the mandrel l l by any suitable means such as a pin 28. 1 As may be further seen, the spring support collar 29 is provided with an interior annular cavity or recess for supporting a helical spring 26 having its upper end urged against a suitable spacer ring 32, or the like, positioned between the upper end of the spring support collar 29 and the lower abutting end of the lower slip 24. A stop ring 27 may be provided between the support collar 29 and the adjacent surface of the mandrel 11, which together with a stop ring 21 between the expander 23 and the mandrel prevent premature setting of the lower slip '24 and the packing 20 during running. An annular drive ring 22 may be located in an elongated recess about the mandrel ll to limit upward and downward travel of the lower expander 23.
Referring again to FIG. 1, the apparatus preferably includes an annular abutment member 19 of conventional design mounted about the mandrel 11 immediately above the upper surface of the uppermost packing body 20. A plurality of rigid spacing bars 16 may be provided in groups at suitable locations about the exterior of the mandrel l1, and aligned between the upper expander 14 and the abutment member 19. More particularly, the lower ends of the spacing bars 19 may be seen to be seated adjacent the mandrel 11 in an annular internal recess in the abutment member 19 and may also be secured to the abutment member 19 by suitable pins 18 or the like. The upper ends of the spacing bars, however, are preferably wedged between the lower tapered edges of the downwardly extending fingers of the retrieval sleeve 9 (see FIG. 4) and an internal annular recess in the upper expander 14. A suitable shear pin 17 or the like may be provided for linking the upper expander 1 to the sleeve 9.
The packing assembly as depicted in FIG. 1 may be anchored by a conventional setting tool 3 comprising a compressional member 5 (shown in phantom lines) arranged to be driven downwardly against the upper surface of the upper slip l3, and a tension member 4 for drawing the mandrel 11 upwardly in the casing 2. In particular, the tension member 4 may be composed of an elongated member or bar disposed within the mandrel 11 and having a locking rim 7 at its lower end. In addition, a collet ring having a plurality of collet fingers 8 may be slidably disposed about the lower end of the tension member 4 with the tips of the fingers 8 locked to the locking rim 7 by one or more shear pins 6 and extending below the lower end of the mandrel ll. Accordingly,'the packing as sembly depicted in FIG. 1 may be anchored in the casing 2 by simultaneously moving the compression member 5 downwardly through the casing 2 and drawing the tension member 4 upwardly therethrough. This will first cause the upper slip 13 to be shifted by the expander 14 into gripping engagement with the casing, whereupon the mandrel 11 will begin to travel upwardly. Upward movement of the mandrel 1 l is transmitted by the drive ring 22 to the lower expander 23 which compresses and expands the packing 20 into sealing contact with the casing 2. During setting of the packing 20, the shear pins 25 will fail and enable the coil spring 26 to shift the slips 24 outwardly along the expander 23 and against the easing. The spring 26 continues to press the slips 24 into wedging engagement between the upper expander 14 and the casing 2.
When the upper and lower slips l3 and 24 and the packing 20 have been set forcefully against the casing 2, further upward movement of the tension member 4 will shear the pins 6, and will thereafter pull the locking rim 7 upwardly to free the tips of the collet fingers 8. The collet fingers 8 may then resile inwardly so that "they may be drawn upwardly through the mandrel 11. Accordingly, the setting tool 3 may then be removed from the casing 2.
Referring now toFIGS. 4-8, there may be seen a pictorial representation of the special retrieval sleeve 9, and detailed cross-sectional representation of the related portions of the assembly at various locations. More particularly, the sleeve 9 may be seen in FIG. 4 to have a plurality of equally spacedapart and aligned upper and lower extending fingers 37 and 35 respectively, which form upper and lower longitudinal slots 36 and 38. The upper ends of the fingers 37 may be seen to be provided with internal ratchet threads 10 to engage the end of a suitable retrieval tool, and the lower fingers 35 may be seen to be provided with tapered tips to slidably support the upper ends of the spacing barsl6 as hereinbefore described. The central annular or ringlike portions 34 of the sleeve 9 separates the upper and lower slots 36 and 38.
Referring again to FIG. 8, the upper beveled ends of the spacing bars 16 are wedged between the tapered surfaces of the lower fingers 35 and against the correspondingly beveled inner surface 39 of the upper expander 14. Referring now to FIG. 5, there may be seen a representation of the spacedapart, shoulderlike extensions 12 which are located to ride between the upper fingers 37 of the sleeve 9, and further located to be engaged by the upper slip 13 when the slip 13 is carried upward along the mandrel 11 by the sleeve 9, as will hereinafter be explained.
Referring now to FIG. 2, there may be seen a pictorial representation, partly in cross section, of the packing assembly depicted in FIG. 1 after such assembly has been anchored in the casing 2. More particularly, the upper slip 13 has been driven downwardly along the interior surface of the expander 14 and into gripping engagement with the casing 2. Similarly, the lower expander 23 may be seen to have been driven upwardly against the packing bodies 20 to compress and expand them outwardly against the interior surface of the casing 2. In this respect, the lower slip 24 will also be seen to have been wedged between the lower expander 23 and the casing 2, after severing of the connecting shear pin 25. After the upper and lower slips 13 and 24 have been anchored, and after the setting tool 3 has been removed from the casing 2,
the well packer will remain immovable in the casing until it is desired to remove it.
Referring now to FIG. 3, there may be seen a similar representation of the apparatus depicted in FIGS. 1 and 2, wherein a retrieval tool 40 has been stabbed into the upper end of the special retrieval sleeve 9 for the purpose of engaging the threads 10. Accordingly, when the retrieval tool 40 is drawn upwardly through the casing 2 a sufiicient distance, the taper lower ends of the fingers 35 are first disconnected from the shear pin 17, and are thereafter drawn from under the upper ends of the outwardly directed spacing bars 16. After these tapered ends of the lower fingers 35 clear the upper ends of the spacing bars 16, decompression of the packing bodies will drive the upper ends of the spacing bars 16 under the upper expander 14, and release the compression loading in the system.
The packing bodies 20 will completely relax to release the fluidtight engagement with the interior surface of the casing 2, and the upper expander 14 no longer supports the upper slip 13 with respect to the casing.
The retrieval tool 40 may now be further lifted through the casing 2 until the central annular portion 34 of the sleeve 9 engages the interior abutting portions 41 of the upper slip l3. Upward travel of the retrieval tool 40 will then cause the sleeve 9 to carry the upper slip l3 completely free of the casing 2, and from the upper part of the upper expander 14.
The packing bodies 20 may now be assumed to be fully relaxed and decompressed. However, the spring 26 may still be compressed sufficiently to drive the lower slip 24 upwardly into partial engagement between the casing 2 and the lower expander 23. Nevertheless, when the sleeve 9 has been raised sufficiently to drive the upper end of the upper slips 13 into abutting engagement with the lower side of the shoulders 12, this will cause the mandrel 11 to be lifted through the casing 2 and the stop ring 22 to lift the lower expander 23 out from underneath the lower slips 24. Then the entire assembly may be lifted free of the casing 2.
It will be apparent from the foregoing that many other variations and modifications may bemade in the structures and methods described herein without substantially departing from the essential concept of the present invention. Accordingly, it should be clearly understood that the forms of the invention described herein and depicted in the accompanying drawings, are exemplary only and are not intended as limitations in the scope of the present invention.
What is claimed is:
l. A well packer apparatus comprising:
an elongated body member;
packing means on said body member adapted to be compressed and expanded into sealing contact with a well casmg;
upper slip and expander means for anchoring against upward movement of said body member in said casing; lower slip and expander means for anchoring against downward movement of said body member in said casing; support means on said body member for maintaining said upper slip and expander means in fixed, spaced relation to said packing means and for maintaining said packing means in sealing contact with said casing; and means for disabling said support means to enable the upper end portion of said packing means to move relatively toward said upper slip and expander means and to relieve said compression and expansion in said packing means.
2. The packer apparatus described in claim 1, wherein said disabling means includes a sleeve means slidably mounted on said body member and upwardly movable relative to said packing means for disabling said support means. I
3. The packer apparatus described in claim 2, wherein said support means is radially disposed about said body member between said sleeve member and said expander means for maintaining said compression and expansion in said packing means.
4. The packer apparatus described in claim 3, wherein said support means is radially disposed about said body member between said upper expander means and said packing means.
5. The packer apparatus described in claim 4, wherein said support means is radially collapsible about said body member upon upward movement of said sleeve member along said body member to release said upper expander means and said packing means.
6. A well packer apparatus comprising a mandrel,
an annular body member formed of a resilient material and concentrically mounted on said mandrel,
upper expander means slidably mounted on said mandrel above said resilient body member,
lower expander means slidably mounted on said mandrel belowsaid resilient body member,
upper slip means downwardly movable along said mandrel for wedging engagement between said upper expander means and the inside surface of a well casing or the like,
lower slip means upwardly movable along said mandrel for wedging engagement between said lower expander and the inside surface of a well casing or the like,
a sleeve means slidably movable on said mandrel independently of said expander means and said slip means and having one end extending at least partially between said upper expander and said mandrel, and
support means at least partially disposed between said upper expander means and the upper end of said body member for maintaining a spaced relationship therebetween.
7. The packer apparatus described in claim 6, wherein said support means comprises a plurality of rigid members disposed about said mandrel and each having one end adjacent said resilient body member and the other end wedged between said upper expander means and said end of said sleeve member.
8. The packer apparatus described in claim 7, wherein said rigid members are elongated bar members longitudinally aligned with said mandrel.
9. The packer apparatus described in claim 8, wherein the ends of said bar members adjacent said upper expander means are adapted to be driven between said upper expander means and said mandrel by relaxation of said resilient body member upon withdrawal of said sleeve member from between said mandrel ans said upper expander means.
10. The packer apparatus described in claim 9, wherein said sleeve member is provided with a plurality of upper longitudinal slots extending partially along said sleeve member for accommodating said upper slip means, and
wherein said sleeve member is adapted to engage and draw said upper slip means out of wedging engagement between said upper expander means and said well casing after said end of said sleeve member is removed from between said ends of said bar members and said mandrel. 11. The packer apparatus described in claim 10, wherein said sleeve member is further provided with a plurality of lower longitudinal slots extending partially along said sleeve member for accommodating said upper expander means.
12. The packer apparatus described in claim 11, wherein said upper slip means is adapted to be slidably movable along said mandrel between said lower slots of said sleeve means.
Claims (12)
1. A well packer apparatus comprising: an elongated body member; packing means on said body member adapted to be compressed and expanded into sealing contact with a well casing; upper slip and expander means for anchoring against upward movement of said body member in said casing; lower slip and expander means for anchoring against downward movement of said body member in said casing; support means on said body member for maintaining said upper slip and expander means in fixed, spaced relation to said packing means and for maintaining said packing means in sealing contact with said casing; and means for disabling said support means to enable the upper end portion of said packing means to move relatively toward said upper slip and expander means and to relieve said compression and expansion in said packing means.
2. The packer apparatus described in claim 1, wherein said disabling means includes a sleeve means slidably mounted on said body member and upwardly movable relative to said packing means for disabling said support means.
3. The packer apparatus described in claim 2, wherein said support means is radially disposed about said body member between said sleeve member and said expander means for maintaining said compression and expansion in said packing means.
4. The packer apparatus described in claim 3, wherein said support means is radially disposed about said body member between said upper expander means and said packing means.
5. The packer apparatus described in claim 4, wherein said support means is radially collapsible about said body member upon upward movement of said sleeve member along said body member to release said upper expander means and said packing means.
6. A well packer apparatus comprising a mandrel, an annular body member formed of a resilient material and concentrically mounted on said mandrel, upper expander means slidably mounted on said mandrel above said resilient body member, lower expander means slidably mounted on said mandrel below said resilient body member, upper slip means downwardly movable along said mandrel for wedging engagement between said upper expander means and the inside surface of a well casing or the like, lower slip means upwardly movable along said mandrel for wedging engagement between said lower expander and the inside surface of a well casing or the like, a sleeve means slidably movable on said mandrel independently of said expander means and said slip means and having one end extending at least partially between said upper expander and said mandrel, and support means at least partially disposed between said upper expander means and the upper end of said body member for maintaining a spaced relationship therebetween.
7. The packer apparatus described in claim 6, wherein said support means comprises a plurality of rigid members disposed about said mandrel and each having one end adjacent said resilient body member and the other end wedged between said upper expander means and said end of said sleeve member.
8. The packer apparatus described in claim 7, wherein said rigid members are elongated bar members longitudinally aligned with said mandrel.
9. The packer apparatus described in claim 8, wherein the ends of said bar members adjacent said upper expander means are adapted to be driven between said upper expander means and said mandrel by relaxation of said resilient body member upon withdrawal of said sleeve member from between said mandrel ans said upper expander means.
10. The packer apparatus described in claim 9, wherein said sleeve member is provided with a plurality of upper longitudinal slots extending partially along said sleeve member for accommodating said upper slip means, and wherein said sleeve member is adapted to engage and draw said upper slip means out of wedging engagement between said upper expander means and said well casing after said end of said sleeve member is removed from between said ends of said bar members and said mandrel.
11. The packer apparatus described in claim 10, wherein said sleeve member is further provided with a plurality of lower longitudinal slots extending partially along said sleeve member for accommodating said upper expander means.
12. The packer apparatus described in claim 11, wherein said upper slip means is adapted to be slidably movable along said mandrel between said lower slots of said sleeve means.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88965869A | 1969-12-31 | 1969-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3602305A true US3602305A (en) | 1971-08-31 |
Family
ID=25395535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US889658A Expired - Lifetime US3602305A (en) | 1969-12-31 | 1969-12-31 | Retrievable well packer |
Country Status (1)
Country | Link |
---|---|
US (1) | US3602305A (en) |
Cited By (72)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235719A1 (en) * | 1981-09-28 | 1983-04-07 | Otis Eng Co | BRIDGE PLUG |
US4530398A (en) * | 1982-08-02 | 1985-07-23 | Arrow Oil Tools, Inc. | Retrievable well bore packer |
US5441111A (en) * | 1992-01-09 | 1995-08-15 | Petroleum Engineering Services Limited | Bridge plug |
EP0699818A3 (en) * | 1994-08-31 | 1998-05-27 | Halliburton Company | Downhole tool hanger |
US5819846A (en) * | 1996-10-01 | 1998-10-13 | Bolt, Jr.; Donald B. | Bridge plug |
US6131656A (en) * | 1998-01-23 | 2000-10-17 | Jani; William | Bridge plug for a well bore |
WO2001065062A2 (en) | 2000-03-02 | 2001-09-07 | Shell Internationale Research Maatschappij B.V. | Use of downhole high pressure gas in a gas-lift well |
WO2001065067A1 (en) | 2000-03-02 | 2001-09-07 | Shell Internationale Research Maatschappij B.V. | Controllable production well packer |
WO2001065063A1 (en) | 2000-03-02 | 2001-09-07 | Shell Internationale Research Maatschappij B.V. | Wireless downhole well interval inflow and injection control |
US20030038734A1 (en) * | 2000-01-24 | 2003-02-27 | Hirsch John Michael | Wireless reservoir production control |
US20030042026A1 (en) * | 2001-03-02 | 2003-03-06 | Vinegar Harold J. | Controllable production well packer |
US20030048697A1 (en) * | 2000-03-02 | 2003-03-13 | Hirsch John Michele | Power generation using batteries with reconfigurable discharge |
US20030066671A1 (en) * | 2000-03-02 | 2003-04-10 | Vinegar Harold J. | Oil well casing electrical power pick-off points |
US6633164B2 (en) | 2000-01-24 | 2003-10-14 | Shell Oil Company | Measuring focused through-casing resistivity using induction chokes and also using well casing as the formation contact electrodes |
US6633236B2 (en) | 2000-01-24 | 2003-10-14 | Shell Oil Company | Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
US6662875B2 (en) | 2000-01-24 | 2003-12-16 | Shell Oil Company | Induction choke for power distribution in piping structure |
US6679332B2 (en) | 2000-01-24 | 2004-01-20 | Shell Oil Company | Petroleum well having downhole sensors, communication and power |
US20040060703A1 (en) * | 2000-01-24 | 2004-04-01 | Stegemeier George Leo | Controlled downhole chemical injection |
US6715550B2 (en) | 2000-01-24 | 2004-04-06 | Shell Oil Company | Controllable gas-lift well and valve |
US20040079524A1 (en) * | 2000-01-24 | 2004-04-29 | Bass Ronald Marshall | Toroidal choke inductor for wireless communication and control |
US6758277B2 (en) | 2000-01-24 | 2004-07-06 | Shell Oil Company | System and method for fluid flow optimization |
US6817412B2 (en) | 2000-01-24 | 2004-11-16 | Shell Oil Company | Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
US6840316B2 (en) | 2000-01-24 | 2005-01-11 | Shell Oil Company | Tracker injection in a production well |
US6840317B2 (en) | 2000-03-02 | 2005-01-11 | Shell Oil Company | Wireless downwhole measurement and control for optimizing gas lift well and field performance |
US6851481B2 (en) | 2000-03-02 | 2005-02-08 | Shell Oil Company | Electro-hydraulically pressurized downhole valve actuator and method of use |
US6868040B2 (en) | 2000-03-02 | 2005-03-15 | Shell Oil Company | Wireless power and communications cross-bar switch |
US20050077053A1 (en) * | 2003-10-14 | 2005-04-14 | Baker Hughes Incorporated | Retrievable packer assembly and system with releasable body lock ring |
US7073594B2 (en) | 2000-03-02 | 2006-07-11 | Shell Oil Company | Wireless downhole well interval inflow and injection control |
US7114561B2 (en) | 2000-01-24 | 2006-10-03 | Shell Oil Company | Wireless communication using well casing |
US20120125637A1 (en) * | 2010-11-23 | 2012-05-24 | Chenault Louis W | Non-metallic slip assembly and related methods |
US8459346B2 (en) | 2008-12-23 | 2013-06-11 | Magnum Oil Tools International Ltd | Bottom set downhole plug |
US8496052B2 (en) * | 2008-12-23 | 2013-07-30 | Magnum Oil Tools International, Ltd. | Bottom set down hole tool |
USD694281S1 (en) | 2011-07-29 | 2013-11-26 | W. Lynn Frazier | Lower set insert with a lower ball seat for a downhole plug |
USD694280S1 (en) | 2011-07-29 | 2013-11-26 | W. Lynn Frazier | Configurable insert for a downhole plug |
USD698370S1 (en) | 2011-07-29 | 2014-01-28 | W. Lynn Frazier | Lower set caged ball insert for a downhole plug |
USD703713S1 (en) | 2011-07-29 | 2014-04-29 | W. Lynn Frazier | Configurable caged ball insert for a downhole tool |
US8899317B2 (en) | 2008-12-23 | 2014-12-02 | W. Lynn Frazier | Decomposable pumpdown ball for downhole plugs |
US9062522B2 (en) | 2009-04-21 | 2015-06-23 | W. Lynn Frazier | Configurable inserts for downhole plugs |
US9080416B2 (en) | 2012-08-13 | 2015-07-14 | Baker Hughes Incorporated | Setting tool, anchoring and sealing device and system |
US9085968B2 (en) | 2012-12-06 | 2015-07-21 | Baker Hughes Incorporated | Expandable tubular and method of making same |
US9109428B2 (en) | 2009-04-21 | 2015-08-18 | W. Lynn Frazier | Configurable bridge plugs and methods for using same |
US9127527B2 (en) | 2009-04-21 | 2015-09-08 | W. Lynn Frazier | Decomposable impediments for downhole tools and methods for using same |
US9163477B2 (en) | 2009-04-21 | 2015-10-20 | W. Lynn Frazier | Configurable downhole tools and methods for using same |
US9181772B2 (en) | 2009-04-21 | 2015-11-10 | W. Lynn Frazier | Decomposable impediments for downhole plugs |
US9284803B2 (en) | 2012-01-25 | 2016-03-15 | Baker Hughes Incorporated | One-way flowable anchoring system and method of treating and producing a well |
US9309733B2 (en) | 2012-01-25 | 2016-04-12 | Baker Hughes Incorporated | Tubular anchoring system and method |
US9366106B2 (en) | 2011-04-28 | 2016-06-14 | Baker Hughes Incorporated | Method of making and using a functionally gradient composite tool |
US9562415B2 (en) | 2009-04-21 | 2017-02-07 | Magnum Oil Tools International, Ltd. | Configurable inserts for downhole plugs |
US9605508B2 (en) | 2012-05-08 | 2017-03-28 | Baker Hughes Incorporated | Disintegrable and conformable metallic seal, and method of making the same |
US9631138B2 (en) | 2011-04-28 | 2017-04-25 | Baker Hughes Incorporated | Functionally gradient composite article |
US9643144B2 (en) | 2011-09-02 | 2017-05-09 | Baker Hughes Incorporated | Method to generate and disperse nanostructures in a composite material |
US9682425B2 (en) | 2009-12-08 | 2017-06-20 | Baker Hughes Incorporated | Coated metallic powder and method of making the same |
US9707739B2 (en) | 2011-07-22 | 2017-07-18 | Baker Hughes Incorporated | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US9802250B2 (en) | 2011-08-30 | 2017-10-31 | Baker Hughes | Magnesium alloy powder metal compact |
US9816339B2 (en) | 2013-09-03 | 2017-11-14 | Baker Hughes, A Ge Company, Llc | Plug reception assembly and method of reducing restriction in a borehole |
US9833838B2 (en) | 2011-07-29 | 2017-12-05 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9856547B2 (en) | 2011-08-30 | 2018-01-02 | Bakers Hughes, A Ge Company, Llc | Nanostructured powder metal compact |
US9910026B2 (en) | 2015-01-21 | 2018-03-06 | Baker Hughes, A Ge Company, Llc | High temperature tracers for downhole detection of produced water |
US9926763B2 (en) | 2011-06-17 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Corrodible downhole article and method of removing the article from downhole environment |
US9926766B2 (en) | 2012-01-25 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Seat for a tubular treating system |
US9925589B2 (en) | 2011-08-30 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Aluminum alloy powder metal compact |
US10016810B2 (en) | 2015-12-14 | 2018-07-10 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof |
US10092953B2 (en) | 2011-07-29 | 2018-10-09 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US10221637B2 (en) | 2015-08-11 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing dissolvable tools via liquid-solid state molding |
US10301909B2 (en) | 2011-08-17 | 2019-05-28 | Baker Hughes, A Ge Company, Llc | Selectively degradable passage restriction |
US10378303B2 (en) | 2015-03-05 | 2019-08-13 | Baker Hughes, A Ge Company, Llc | Downhole tool and method of forming the same |
US10669797B2 (en) | 2009-12-08 | 2020-06-02 | Baker Hughes, A Ge Company, Llc | Tool configured to dissolve in a selected subsurface environment |
US11131163B2 (en) * | 2017-10-06 | 2021-09-28 | G&H Diversified Manufacturing Lp | Systems and methods for sealing a wellbore |
US11167343B2 (en) | 2014-02-21 | 2021-11-09 | Terves, Llc | Galvanically-active in situ formed particles for controlled rate dissolving tools |
US11365164B2 (en) | 2014-02-21 | 2022-06-21 | Terves, Llc | Fluid activated disintegrating metal system |
US11434715B2 (en) * | 2020-08-01 | 2022-09-06 | Lonestar Completion Tools, LLC | Frac plug with collapsible plug body having integral wedge and slip elements |
US11649526B2 (en) | 2017-07-27 | 2023-05-16 | Terves, Llc | Degradable metal matrix composite |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3013610A (en) * | 1958-04-21 | 1961-12-19 | Baker Oil Tools Inc | Retrievable double grip well packer |
US3215207A (en) * | 1962-09-20 | 1965-11-02 | Otis Eng Co | Well tools |
US3374837A (en) * | 1965-10-18 | 1968-03-26 | Page Oil Tools Inc | Retrievable packer |
US3398795A (en) * | 1965-08-16 | 1968-08-27 | Otis Eng Co | Retrievable well packers |
US3416609A (en) * | 1966-04-20 | 1968-12-17 | Dresser Ind | Well packer with by-pass valve |
-
1969
- 1969-12-31 US US889658A patent/US3602305A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3013610A (en) * | 1958-04-21 | 1961-12-19 | Baker Oil Tools Inc | Retrievable double grip well packer |
US3215207A (en) * | 1962-09-20 | 1965-11-02 | Otis Eng Co | Well tools |
US3398795A (en) * | 1965-08-16 | 1968-08-27 | Otis Eng Co | Retrievable well packers |
US3374837A (en) * | 1965-10-18 | 1968-03-26 | Page Oil Tools Inc | Retrievable packer |
US3416609A (en) * | 1966-04-20 | 1968-12-17 | Dresser Ind | Well packer with by-pass valve |
Cited By (97)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235719A1 (en) * | 1981-09-28 | 1983-04-07 | Otis Eng Co | BRIDGE PLUG |
US4530398A (en) * | 1982-08-02 | 1985-07-23 | Arrow Oil Tools, Inc. | Retrievable well bore packer |
US5441111A (en) * | 1992-01-09 | 1995-08-15 | Petroleum Engineering Services Limited | Bridge plug |
EP0699818A3 (en) * | 1994-08-31 | 1998-05-27 | Halliburton Company | Downhole tool hanger |
EP0882869A2 (en) * | 1994-08-31 | 1998-12-09 | Halliburton Energy Services, Inc. | Method of perforating a well casing and downhole tool hanger |
EP0882869A3 (en) * | 1994-08-31 | 1999-03-10 | Halliburton Energy Services, Inc. | Method of perforating a well casing and downhole tool hanger |
US5819846A (en) * | 1996-10-01 | 1998-10-13 | Bolt, Jr.; Donald B. | Bridge plug |
US6131656A (en) * | 1998-01-23 | 2000-10-17 | Jani; William | Bridge plug for a well bore |
US7114561B2 (en) | 2000-01-24 | 2006-10-03 | Shell Oil Company | Wireless communication using well casing |
US7259688B2 (en) | 2000-01-24 | 2007-08-21 | Shell Oil Company | Wireless reservoir production control |
US6817412B2 (en) | 2000-01-24 | 2004-11-16 | Shell Oil Company | Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
US20030038734A1 (en) * | 2000-01-24 | 2003-02-27 | Hirsch John Michael | Wireless reservoir production control |
US7055592B2 (en) | 2000-01-24 | 2006-06-06 | Shell Oil Company | Toroidal choke inductor for wireless communication and control |
US6981553B2 (en) | 2000-01-24 | 2006-01-03 | Shell Oil Company | Controlled downhole chemical injection |
US6840316B2 (en) | 2000-01-24 | 2005-01-11 | Shell Oil Company | Tracker injection in a production well |
US6633164B2 (en) | 2000-01-24 | 2003-10-14 | Shell Oil Company | Measuring focused through-casing resistivity using induction chokes and also using well casing as the formation contact electrodes |
US6633236B2 (en) | 2000-01-24 | 2003-10-14 | Shell Oil Company | Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
US6662875B2 (en) | 2000-01-24 | 2003-12-16 | Shell Oil Company | Induction choke for power distribution in piping structure |
US6679332B2 (en) | 2000-01-24 | 2004-01-20 | Shell Oil Company | Petroleum well having downhole sensors, communication and power |
US20040060703A1 (en) * | 2000-01-24 | 2004-04-01 | Stegemeier George Leo | Controlled downhole chemical injection |
US6715550B2 (en) | 2000-01-24 | 2004-04-06 | Shell Oil Company | Controllable gas-lift well and valve |
US20040079524A1 (en) * | 2000-01-24 | 2004-04-29 | Bass Ronald Marshall | Toroidal choke inductor for wireless communication and control |
US6758277B2 (en) | 2000-01-24 | 2004-07-06 | Shell Oil Company | System and method for fluid flow optimization |
US6851481B2 (en) | 2000-03-02 | 2005-02-08 | Shell Oil Company | Electro-hydraulically pressurized downhole valve actuator and method of use |
US7147059B2 (en) | 2000-03-02 | 2006-12-12 | Shell Oil Company | Use of downhole high pressure gas in a gas-lift well and associated methods |
US6840317B2 (en) | 2000-03-02 | 2005-01-11 | Shell Oil Company | Wireless downwhole measurement and control for optimizing gas lift well and field performance |
WO2001065062A2 (en) | 2000-03-02 | 2001-09-07 | Shell Internationale Research Maatschappij B.V. | Use of downhole high pressure gas in a gas-lift well |
US6868040B2 (en) | 2000-03-02 | 2005-03-15 | Shell Oil Company | Wireless power and communications cross-bar switch |
US20030066671A1 (en) * | 2000-03-02 | 2003-04-10 | Vinegar Harold J. | Oil well casing electrical power pick-off points |
US20030048697A1 (en) * | 2000-03-02 | 2003-03-13 | Hirsch John Michele | Power generation using batteries with reconfigurable discharge |
WO2001065067A1 (en) | 2000-03-02 | 2001-09-07 | Shell Internationale Research Maatschappij B.V. | Controllable production well packer |
US7073594B2 (en) | 2000-03-02 | 2006-07-11 | Shell Oil Company | Wireless downhole well interval inflow and injection control |
US7075454B2 (en) | 2000-03-02 | 2006-07-11 | Shell Oil Company | Power generation using batteries with reconfigurable discharge |
US7170424B2 (en) | 2000-03-02 | 2007-01-30 | Shell Oil Company | Oil well casting electrical power pick-off points |
WO2001065063A1 (en) | 2000-03-02 | 2001-09-07 | Shell Internationale Research Maatschappij B.V. | Wireless downhole well interval inflow and injection control |
US7322410B2 (en) | 2001-03-02 | 2008-01-29 | Shell Oil Company | Controllable production well packer |
US20030042026A1 (en) * | 2001-03-02 | 2003-03-06 | Vinegar Harold J. | Controllable production well packer |
US7080693B2 (en) | 2003-10-14 | 2006-07-25 | Baker Hughes Incorporated | Retrievable packer assembly, method, and system with releasable body lock ring |
US20050077053A1 (en) * | 2003-10-14 | 2005-04-14 | Baker Hughes Incorporated | Retrievable packer assembly and system with releasable body lock ring |
US8899317B2 (en) | 2008-12-23 | 2014-12-02 | W. Lynn Frazier | Decomposable pumpdown ball for downhole plugs |
USD697088S1 (en) | 2008-12-23 | 2014-01-07 | W. Lynn Frazier | Lower set insert for a downhole plug for use in a wellbore |
US8496052B2 (en) * | 2008-12-23 | 2013-07-30 | Magnum Oil Tools International, Ltd. | Bottom set down hole tool |
USD694282S1 (en) | 2008-12-23 | 2013-11-26 | W. Lynn Frazier | Lower set insert for a downhole plug for use in a wellbore |
US8459346B2 (en) | 2008-12-23 | 2013-06-11 | Magnum Oil Tools International Ltd | Bottom set downhole plug |
US9309744B2 (en) | 2008-12-23 | 2016-04-12 | Magnum Oil Tools International, Ltd. | Bottom set downhole plug |
US9109428B2 (en) | 2009-04-21 | 2015-08-18 | W. Lynn Frazier | Configurable bridge plugs and methods for using same |
US9562415B2 (en) | 2009-04-21 | 2017-02-07 | Magnum Oil Tools International, Ltd. | Configurable inserts for downhole plugs |
US9181772B2 (en) | 2009-04-21 | 2015-11-10 | W. Lynn Frazier | Decomposable impediments for downhole plugs |
US9062522B2 (en) | 2009-04-21 | 2015-06-23 | W. Lynn Frazier | Configurable inserts for downhole plugs |
US9163477B2 (en) | 2009-04-21 | 2015-10-20 | W. Lynn Frazier | Configurable downhole tools and methods for using same |
US9127527B2 (en) | 2009-04-21 | 2015-09-08 | W. Lynn Frazier | Decomposable impediments for downhole tools and methods for using same |
US10669797B2 (en) | 2009-12-08 | 2020-06-02 | Baker Hughes, A Ge Company, Llc | Tool configured to dissolve in a selected subsurface environment |
US9682425B2 (en) | 2009-12-08 | 2017-06-20 | Baker Hughes Incorporated | Coated metallic powder and method of making the same |
US8991485B2 (en) * | 2010-11-23 | 2015-03-31 | Wireline Solutions, Llc | Non-metallic slip assembly and related methods |
US20120125637A1 (en) * | 2010-11-23 | 2012-05-24 | Chenault Louis W | Non-metallic slip assembly and related methods |
US9816347B2 (en) | 2010-11-23 | 2017-11-14 | Forum Us, Inc. | Non-metallic slip assembly and related methods |
US9366106B2 (en) | 2011-04-28 | 2016-06-14 | Baker Hughes Incorporated | Method of making and using a functionally gradient composite tool |
US10335858B2 (en) | 2011-04-28 | 2019-07-02 | Baker Hughes, A Ge Company, Llc | Method of making and using a functionally gradient composite tool |
US9631138B2 (en) | 2011-04-28 | 2017-04-25 | Baker Hughes Incorporated | Functionally gradient composite article |
US9926763B2 (en) | 2011-06-17 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Corrodible downhole article and method of removing the article from downhole environment |
US10697266B2 (en) | 2011-07-22 | 2020-06-30 | Baker Hughes, A Ge Company, Llc | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US9707739B2 (en) | 2011-07-22 | 2017-07-18 | Baker Hughes Incorporated | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US9833838B2 (en) | 2011-07-29 | 2017-12-05 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
USD694280S1 (en) | 2011-07-29 | 2013-11-26 | W. Lynn Frazier | Configurable insert for a downhole plug |
USD698370S1 (en) | 2011-07-29 | 2014-01-28 | W. Lynn Frazier | Lower set caged ball insert for a downhole plug |
USD703713S1 (en) | 2011-07-29 | 2014-04-29 | W. Lynn Frazier | Configurable caged ball insert for a downhole tool |
USD694281S1 (en) | 2011-07-29 | 2013-11-26 | W. Lynn Frazier | Lower set insert with a lower ball seat for a downhole plug |
US10092953B2 (en) | 2011-07-29 | 2018-10-09 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US10301909B2 (en) | 2011-08-17 | 2019-05-28 | Baker Hughes, A Ge Company, Llc | Selectively degradable passage restriction |
US11090719B2 (en) | 2011-08-30 | 2021-08-17 | Baker Hughes, A Ge Company, Llc | Aluminum alloy powder metal compact |
US9856547B2 (en) | 2011-08-30 | 2018-01-02 | Bakers Hughes, A Ge Company, Llc | Nanostructured powder metal compact |
US10737321B2 (en) | 2011-08-30 | 2020-08-11 | Baker Hughes, A Ge Company, Llc | Magnesium alloy powder metal compact |
US9925589B2 (en) | 2011-08-30 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Aluminum alloy powder metal compact |
US9802250B2 (en) | 2011-08-30 | 2017-10-31 | Baker Hughes | Magnesium alloy powder metal compact |
US9643144B2 (en) | 2011-09-02 | 2017-05-09 | Baker Hughes Incorporated | Method to generate and disperse nanostructures in a composite material |
US9309733B2 (en) | 2012-01-25 | 2016-04-12 | Baker Hughes Incorporated | Tubular anchoring system and method |
US9926766B2 (en) | 2012-01-25 | 2018-03-27 | Baker Hughes, A Ge Company, Llc | Seat for a tubular treating system |
US9284803B2 (en) | 2012-01-25 | 2016-03-15 | Baker Hughes Incorporated | One-way flowable anchoring system and method of treating and producing a well |
US9605508B2 (en) | 2012-05-08 | 2017-03-28 | Baker Hughes Incorporated | Disintegrable and conformable metallic seal, and method of making the same |
US10612659B2 (en) | 2012-05-08 | 2020-04-07 | Baker Hughes Oilfield Operations, Llc | Disintegrable and conformable metallic seal, and method of making the same |
US9080416B2 (en) | 2012-08-13 | 2015-07-14 | Baker Hughes Incorporated | Setting tool, anchoring and sealing device and system |
US9085968B2 (en) | 2012-12-06 | 2015-07-21 | Baker Hughes Incorporated | Expandable tubular and method of making same |
US9828836B2 (en) | 2012-12-06 | 2017-11-28 | Baker Hughes, LLC | Expandable tubular and method of making same |
US9816339B2 (en) | 2013-09-03 | 2017-11-14 | Baker Hughes, A Ge Company, Llc | Plug reception assembly and method of reducing restriction in a borehole |
US11365164B2 (en) | 2014-02-21 | 2022-06-21 | Terves, Llc | Fluid activated disintegrating metal system |
US11613952B2 (en) | 2014-02-21 | 2023-03-28 | Terves, Llc | Fluid activated disintegrating metal system |
US11167343B2 (en) | 2014-02-21 | 2021-11-09 | Terves, Llc | Galvanically-active in situ formed particles for controlled rate dissolving tools |
US9910026B2 (en) | 2015-01-21 | 2018-03-06 | Baker Hughes, A Ge Company, Llc | High temperature tracers for downhole detection of produced water |
US10378303B2 (en) | 2015-03-05 | 2019-08-13 | Baker Hughes, A Ge Company, Llc | Downhole tool and method of forming the same |
US10221637B2 (en) | 2015-08-11 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing dissolvable tools via liquid-solid state molding |
US10016810B2 (en) | 2015-12-14 | 2018-07-10 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof |
US11649526B2 (en) | 2017-07-27 | 2023-05-16 | Terves, Llc | Degradable metal matrix composite |
US11898223B2 (en) | 2017-07-27 | 2024-02-13 | Terves, Llc | Degradable metal matrix composite |
US11131163B2 (en) * | 2017-10-06 | 2021-09-28 | G&H Diversified Manufacturing Lp | Systems and methods for sealing a wellbore |
US20220010650A1 (en) * | 2017-10-06 | 2022-01-13 | G&H Diversified Manufacturing Lp | Systems and methods for sealing a wellbore |
US11814925B2 (en) * | 2017-10-06 | 2023-11-14 | G&H Diversified Manufacturing Lp | Systems and methods for sealing a wellbore |
US11434715B2 (en) * | 2020-08-01 | 2022-09-06 | Lonestar Completion Tools, LLC | Frac plug with collapsible plug body having integral wedge and slip elements |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3602305A (en) | Retrievable well packer | |
US3631926A (en) | Well packer | |
US3818987A (en) | Well packer and retriever | |
US3631925A (en) | Retrievable permanent well packer | |
US5819846A (en) | Bridge plug | |
US3856081A (en) | Locking devices | |
US3851706A (en) | Well packer and retriever | |
AU785221B2 (en) | Collet-cone slip system for releasably securing well tools | |
US4059150A (en) | Anchoring assembly | |
US2672199A (en) | Cement retainer and bridge plug | |
US3785193A (en) | Liner expanding apparatus | |
AU785197B2 (en) | Lock ring for pipe slip pick-up ring | |
US4745972A (en) | Well packer having extrusion preventing rings | |
US3631927A (en) | Well packer | |
US3422898A (en) | Setting apparatus for well tools | |
US20060225877A1 (en) | Patriot retrievable production packer | |
US3000443A (en) | Bridging plug | |
US4862961A (en) | Retrievable tension-set packer | |
US20050167097A1 (en) | Patriot retrievable production packer | |
US4406324A (en) | Bottom lock pipe seal assembly | |
US3412803A (en) | Well tool anchors | |
US3497003A (en) | Frangible solid slips with retaining band | |
US3024845A (en) | Apparatus for setting packers in well bores | |
US7036595B2 (en) | Removal of tubulars from wells | |
US3303885A (en) | Non-retrievable bridge plug |