US20100314126A1 - Seat apparatus and method - Google Patents

Seat apparatus and method Download PDF

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Publication number
US20100314126A1
US20100314126A1 US12/482,181 US48218109A US2010314126A1 US 20100314126 A1 US20100314126 A1 US 20100314126A1 US 48218109 A US48218109 A US 48218109A US 2010314126 A1 US2010314126 A1 US 2010314126A1
Authority
US
United States
Prior art keywords
seat
housing
flow path
operative
seat apparatus
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.)
Abandoned
Application number
US12/482,181
Inventor
Justin Kellner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Priority to US12/482,181 priority Critical patent/US20100314126A1/en
Assigned to BAKER HUGHES INCORPORATED reassignment BAKER HUGHES INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KELLNER, JUSTIN
Priority to AU2010258794A priority patent/AU2010258794A1/en
Priority to CN201310742961.5A priority patent/CN103711922A/en
Priority to MX2011001595A priority patent/MX2011001595A/en
Priority to RU2011153785/03A priority patent/RU2570692C2/en
Priority to CN2010800026567A priority patent/CN102159789A/en
Priority to PCT/US2010/037979 priority patent/WO2010144580A2/en
Priority to CA2733828A priority patent/CA2733828C/en
Priority to EP10786783.0A priority patent/EP2440741A4/en
Publication of US20100314126A1 publication Critical patent/US20100314126A1/en
Priority to US13/864,767 priority patent/US9316089B2/en
Abandoned legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/06Valve arrangements for boreholes or wells in wells
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/42Valve seats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/04Check valves with guided rigid valve members shaped as balls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/14Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member

Definitions

  • Ball seats such as, for example ball seats are well known in downhole industries and especially so in the drilling and completion industry. Commonly, ball seats are used to regulate the flow of fluids and actuate downhole devices. Although ball seat configurations are many and are ubiquitous in their use within the art, the number of stacked ball seats that can be employed with traditional systems is limited. Improving the number of ball seats that may be stacked in a borehole will be welcomed by the art.
  • a seat apparatus includes a housing defining at least a first flow path and at least a second flow path, a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path, and a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path.
  • a seat apparatus includes a housing defining at least a first flow path, the axis of the first flow path coincident with a longitudinal axis of the housing, at least a second flow path partially defined by the housing, a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path, and a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path.
  • a method for facilitating a pressure based operation in a downhole environment comprises disposing a first object in a first seat in a housing, the first object operative to obstruct a first flow path partially defined by the housing, and disposing a second object in a second seat in the housing, the second object operative to obstruct a second flow path partially defined by the housing.
  • FIG. 1 is a perspective view of an embodiment of a ball seat
  • FIG. 2 is a cut-away side view of the ball seat of FIG. 1 ;
  • FIG. 3 is a side cut-away view of a portion of an alternate embodiment of a ball seat
  • FIG. 4 is a perspective view of another alternate embodiment of a ball seat
  • FIG. 5 is a side cut-away view of the ball seat of FIG. 4 .
  • the ball seat 10 includes a housing 12 that includes tubular orifices 14 .
  • the tubular orifices 14 define flow paths indicated by the arrows 11 .
  • Seats 16 are disposed at the apertures of the orifices 14 .
  • the illustrated embodiment includes concave portions 18 defined by the housing 12 .
  • the concave portions may be, for example, conical, parabolic, or cylindrical in shape.
  • FIG. 2 illustrates a cut-away view of the ball seat 10 .
  • the ball seat 10 may be placed downhole in a borehole.
  • a first object 20 such as, for example, a spherical object may be introduced into the borehole and driven towards the ball seat 10 by, for example, hydraulic pressure or gravity.
  • One of the concave portions 18 directs the first object 20 into engagement with a seat 16 ; blocking an orifice 14 and obstructing a flow path 11 .
  • a second object 22 may similarly be driven towards the ball seat 10 and directed by the concave portions 18 into the empty seat 16 ; blocking the second orifice 14 and obstructing the second flow path 11 .
  • the obstruction of the flow paths allows an operator to pressure up against the obstructed ball seat 10 to facilitate a downhole pressure based operation. This may be a fracturing job or actuation of a desired downhole device, or to otherwise effect desired downhole operations.
  • Previous ball seat devices using a single orifice and seat arrangement may be less effective when the cross sectional areas of the orifice (and the associated diameter of the object) are less than a defined threshold cross sectional area.
  • the threshold diameter may be a different diameter for different borehole systems and is associated with the likelihood of a pressure increase upstream of the orifice due to its restricted flow area.
  • Orifice cross sectional areas less than the threshold cross sectional area may undesirably restrict the flow of fluid and cause the undesired and premature actuation of tools or other premature operations uphole relative to the ball seat device.
  • the illustrated embodiments having more than one orifice allow the cross sectional areas of individual orifices (and the associated diameter of the objects) to be reduced while avoiding the restriction of the flow of fluid since the use of multiple orifices allows the net cross sectional area of the orifices to remain greater than the threshold cross sectional area.
  • FIG. 3 illustrates a side cut-away view of a portion of an alternate exemplary embodiment of a ball seat 30 .
  • the ball seat 30 is similar in operation to the ball seat 10 (of FIGS. 1 and 2 ) however; the seats 16 in the illustrated embodiment are disposed in different planes (A and B).
  • the plane B is located downstream in the flow path direction (as indicated by the arrows 11 ) relative to the plane A. The disposition of the seats 16 in different planes may improve the performance of the ball seat 30 .
  • FIG. 4 illustrates another alternate embodiment of a ball seat 40 .
  • the ball seat 40 operates in a similar manner to the embodiments described above, and includes a plurality of seats 16 and concave portions 18 .
  • a seat 17 and associated flow path 15 have an axis coincident to the longitudinal axis 19 of the ball seat 40 .
  • the seats 16 and associated flow paths 14 are disposed radialy about the axis 19 in the housing 12 .
  • FIG. 5 illustrates a side partially cut-away view of a portion of the ball seat 40 (of FIG. 4 ).
  • FIG. 1 illustrate exemplary embodiments of ball seats.
  • Other embodiments may include any number of ball seats having multiple seat portions, flow paths, alignment planes, and shapes that are operative to direct objects to engage the seats.

Abstract

A seat apparatus comprises a housing defining at least a first flow path and at least a second flow path, a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path, and a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path and method.

Description

    BACKGROUND
  • Seats such as, for example ball seats are well known in downhole industries and especially so in the drilling and completion industry. Commonly, ball seats are used to regulate the flow of fluids and actuate downhole devices. Although ball seat configurations are many and are ubiquitous in their use within the art, the number of stacked ball seats that can be employed with traditional systems is limited. Improving the number of ball seats that may be stacked in a borehole will be welcomed by the art.
  • SUMMARY
  • A seat apparatus includes a housing defining at least a first flow path and at least a second flow path, a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path, and a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path.
  • A seat apparatus includes a housing defining at least a first flow path, the axis of the first flow path coincident with a longitudinal axis of the housing, at least a second flow path partially defined by the housing, a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path, and a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path.
  • A method for facilitating a pressure based operation in a downhole environment comprises disposing a first object in a first seat in a housing, the first object operative to obstruct a first flow path partially defined by the housing, and disposing a second object in a second seat in the housing, the second object operative to obstruct a second flow path partially defined by the housing.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Referring now to the drawings wherein like elements are numbered alike in the several figures:
  • FIG. 1 is a perspective view of an embodiment of a ball seat;
  • FIG. 2 is a cut-away side view of the ball seat of FIG. 1;
  • FIG. 3 is a side cut-away view of a portion of an alternate embodiment of a ball seat;
  • FIG. 4 is a perspective view of another alternate embodiment of a ball seat;
  • FIG. 5 is a side cut-away view of the ball seat of FIG. 4.
  • DETAILED DESCRIPTION
  • Referring to FIG. 1, an exemplary embodiment of a ball seat 10 is illustrated. The ball seat 10 includes a housing 12 that includes tubular orifices 14. The tubular orifices 14 define flow paths indicated by the arrows 11. Seats 16 are disposed at the apertures of the orifices 14. The illustrated embodiment includes concave portions 18 defined by the housing 12. The concave portions may be, for example, conical, parabolic, or cylindrical in shape.
  • FIG. 2 illustrates a cut-away view of the ball seat 10. In operation, the ball seat 10 may be placed downhole in a borehole. A first object 20 such as, for example, a spherical object may be introduced into the borehole and driven towards the ball seat 10 by, for example, hydraulic pressure or gravity. One of the concave portions 18 directs the first object 20 into engagement with a seat 16; blocking an orifice 14 and obstructing a flow path 11. A second object 22 may similarly be driven towards the ball seat 10 and directed by the concave portions 18 into the empty seat 16; blocking the second orifice 14 and obstructing the second flow path 11. The obstruction of the flow paths allows an operator to pressure up against the obstructed ball seat 10 to facilitate a downhole pressure based operation. This may be a fracturing job or actuation of a desired downhole device, or to otherwise effect desired downhole operations.
  • Previous ball seat devices using a single orifice and seat arrangement may be less effective when the cross sectional areas of the orifice (and the associated diameter of the object) are less than a defined threshold cross sectional area. The threshold diameter may be a different diameter for different borehole systems and is associated with the likelihood of a pressure increase upstream of the orifice due to its restricted flow area. Orifice cross sectional areas less than the threshold cross sectional area may undesirably restrict the flow of fluid and cause the undesired and premature actuation of tools or other premature operations uphole relative to the ball seat device. The illustrated embodiments having more than one orifice allow the cross sectional areas of individual orifices (and the associated diameter of the objects) to be reduced while avoiding the restriction of the flow of fluid since the use of multiple orifices allows the net cross sectional area of the orifices to remain greater than the threshold cross sectional area.
  • FIG. 3 illustrates a side cut-away view of a portion of an alternate exemplary embodiment of a ball seat 30. The ball seat 30 is similar in operation to the ball seat 10 (of FIGS. 1 and 2) however; the seats 16 in the illustrated embodiment are disposed in different planes (A and B). In the illustrated example, the plane B is located downstream in the flow path direction (as indicated by the arrows 11) relative to the plane A. The disposition of the seats 16 in different planes may improve the performance of the ball seat 30.
  • FIG. 4 illustrates another alternate embodiment of a ball seat 40. The ball seat 40 operates in a similar manner to the embodiments described above, and includes a plurality of seats 16 and concave portions 18. In the illustrated embodiment, a seat 17 and associated flow path 15 have an axis coincident to the longitudinal axis 19 of the ball seat 40. The seats 16 and associated flow paths 14 are disposed radialy about the axis 19 in the housing 12. FIG. 5 illustrates a side partially cut-away view of a portion of the ball seat 40 (of FIG. 4).
  • The Figures described above illustrate exemplary embodiments of ball seats. Other embodiments may include any number of ball seats having multiple seat portions, flow paths, alignment planes, and shapes that are operative to direct objects to engage the seats.
  • While one or more embodiments have been shown and described, modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustrations and not limitation.

Claims (20)

1. A seat apparatus comprising:
a housing defining at least a first flow path and at least a second flow path;
a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path; and
a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path.
2. The seat apparatus as claimed in claim 1 wherein the housing includes a first concave portion operative to guide the first object towards the first seat.
3. The seat apparatus as claimed in claim 1 wherein the housing includes a second concave portion operative to guide the second object towards the second seat.
4. The seat apparatus as claimed in claim 1 wherein the first seat and the second seat are coplanar.
5. The seat apparatus as claimed in claim 1 wherein the first seat is disposed on a first plane and the second seat is disposed on a second plane.
6. The seat apparatus as claimed in claim 1 wherein the first object is spherically shaped.
7. The seat apparatus as claimed in claim 1 wherein the first flow path defined by the housing is tubular.
8. The seat apparatus as claimed in claim 2 wherein the concave portion is parabolicly shaped.
9. The seat apparatus as claimed in claim 2 wherein the concave portion is conically shaped.
10. A seat apparatus comprising:
a housing defining at least a first flow path, the axis of the first flow path coincident with a longitudinal axis of the housing;
at least a second flow path partially defined by the housing;
a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path; and
a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path.
11. The seat apparatus as claimed in claim 10 wherein the housing includes a first concave portion operative to guide the first object towards the first seat.
12. The seat apparatus as claimed in claim 10 wherein the housing includes a second concave portion operative to guide the second object towards the second seat.
13. The seat apparatus as claimed in claim 10 wherein the first seat and the second seat are coplanar.
14. The seat apparatus as claimed in claim 10 wherein the first seat is disposed on a first plane and the second seat is disposed on a second plane.
15. The seat apparatus as claimed in claim 10 wherein the first object is spherically shaped.
16. The seat apparatus as claimed in claim 10 wherein the first flow path defined by the housing is tubular.
17. The seat apparatus as claimed in claim 11 wherein the concave portion is parabolicly shaped.
18. The seat apparatus as claimed in claim 11 wherein the concave portion is conically shaped.
19. A method for facilitating a pressure based operation in a downhole environment comprising:
disposing a first object in a first seat in a housing, the first object operative to engage the first seat and to obstruct a first flow path partially defined by the housing; and
disposing a second object in a second seat in the housing, the second object operative to engage the second seat and obstruct a second flow path partially defined by the housing.
20. The method of claim 19, wherein the method further comprises applying a hydraulic pressure to the housing, the hydraulic pressure operative to actuate the downhole device.
US12/482,181 2009-06-10 2009-06-10 Seat apparatus and method Abandoned US20100314126A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US12/482,181 US20100314126A1 (en) 2009-06-10 2009-06-10 Seat apparatus and method
EP10786783.0A EP2440741A4 (en) 2009-06-10 2010-06-09 Seat apparatus and method
RU2011153785/03A RU2570692C2 (en) 2009-06-10 2010-06-09 Seat device and method of borehole operation execution
CN201310742961.5A CN103711922A (en) 2009-06-10 2010-06-09 Seat apparatus and method
MX2011001595A MX2011001595A (en) 2009-06-10 2010-06-09 Seat apparatus and method.
AU2010258794A AU2010258794A1 (en) 2009-06-10 2010-06-09 Seat apparatus and method
CN2010800026567A CN102159789A (en) 2009-06-10 2010-06-09 Seat apparatus and method
PCT/US2010/037979 WO2010144580A2 (en) 2009-06-10 2010-06-09 Seat apparatus and method
CA2733828A CA2733828C (en) 2009-06-10 2010-06-09 Seat apparatus and method
US13/864,767 US9316089B2 (en) 2009-06-10 2013-04-17 Seat apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/482,181 US20100314126A1 (en) 2009-06-10 2009-06-10 Seat apparatus and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/864,767 Continuation US9316089B2 (en) 2009-06-10 2013-04-17 Seat apparatus and method

Publications (1)

Publication Number Publication Date
US20100314126A1 true US20100314126A1 (en) 2010-12-16

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Application Number Title Priority Date Filing Date
US12/482,181 Abandoned US20100314126A1 (en) 2009-06-10 2009-06-10 Seat apparatus and method
US13/864,767 Active 2030-03-25 US9316089B2 (en) 2009-06-10 2013-04-17 Seat apparatus and method

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13/864,767 Active 2030-03-25 US9316089B2 (en) 2009-06-10 2013-04-17 Seat apparatus and method

Country Status (8)

Country Link
US (2) US20100314126A1 (en)
EP (1) EP2440741A4 (en)
CN (2) CN103711922A (en)
AU (1) AU2010258794A1 (en)
CA (1) CA2733828C (en)
MX (1) MX2011001595A (en)
RU (1) RU2570692C2 (en)
WO (1) WO2010144580A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120061103A1 (en) * 2010-04-23 2012-03-15 Smith International, Inc. Multiple ball- ball seat for hydraulic fracturing with reduced pumping pressure
US9045963B2 (en) 2010-04-23 2015-06-02 Smith International, Inc. High pressure and high temperature ball seat
US20150354312A1 (en) * 2011-06-17 2015-12-10 Baker Hughes Incorporated Corrodible downhole article and method of removing the article from downhole environment
US20150362077A1 (en) * 2014-06-13 2015-12-17 Aeris Technology LLC Valve assembly for controlling fluid communication between fluid chambers, inflatable device, and method
US9404330B2 (en) 2010-07-12 2016-08-02 Schlumberger Technology Corporation Method and apparatus for a well employing the use of an activation ball
WO2016186519A1 (en) * 2015-05-20 2016-11-24 Statoil Petroleum As Method and apparatus for sealing an annulus around a drill-pipe when drilling down-hole
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
US9925589B2 (en) 2011-08-30 2018-03-27 Baker Hughes, A Ge Company, Llc Aluminum alloy powder metal compact
US9926766B2 (en) 2012-01-25 2018-03-27 Baker Hughes, A Ge Company, Llc Seat for a tubular treating system
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
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US10301909B2 (en) 2011-08-17 2019-05-28 Baker Hughes, A Ge Company, Llc Selectively degradable passage restriction
US10335858B2 (en) 2011-04-28 2019-07-02 Baker Hughes, A Ge Company, Llc Method of making and using a functionally gradient composite tool
US10378303B2 (en) 2015-03-05 2019-08-13 Baker Hughes, A Ge Company, Llc Downhole tool and method of forming the same
US20190338617A1 (en) * 2018-05-02 2019-11-07 Baker Hughes, A Ge Company, Llc Plug seat with enhanced fluid distribution and system
CN113324049A (en) * 2021-06-25 2021-08-31 中航光电科技股份有限公司 Novel runner on-off control switch

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CN104405338B (en) * 2014-12-01 2017-02-22 中国石油天然气股份有限公司 Sleeve fracturing ball seat
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WO2022154971A1 (en) * 2021-01-14 2022-07-21 Thru Tubing Solutions, Inc. Downhole plug deployment

Citations (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1258418A (en) * 1916-12-26 1918-03-05 Duston Kemble Jet-lift for wells.
US1712948A (en) * 1927-06-21 1929-05-14 Donald D Burch Apparatus for cementing oil wells
US1998833A (en) * 1930-03-17 1935-04-23 Baker Oil Tools Inc Cementing guide
US2105975A (en) * 1936-03-17 1938-01-18 Frank C Kniss Well pump
US2153034A (en) * 1936-10-10 1939-04-04 Baker Oil Tools Inc Cementing device for well casings
US2320670A (en) * 1939-07-12 1943-06-01 Oil Equipment Engineering Corp Well casing attachment
US2737244A (en) * 1952-04-25 1956-03-06 Baker Oil Tools Inc Multiple ball release devices for well tools
US2769454A (en) * 1954-01-13 1956-11-06 Modern Faucet Mfg Co Pressure control fittings
US2799349A (en) * 1955-08-12 1957-07-16 Baker Oil Tools Inc Automatic casing filling apparatus
US2825412A (en) * 1954-05-21 1958-03-04 Houston Oil Field Mat Co Inc Well bore apparatus
US2973006A (en) * 1957-09-30 1961-02-28 Koehring Co Flow control device
US3007527A (en) * 1958-01-27 1961-11-07 Koehring Co Flow control device
US3062296A (en) * 1960-12-01 1962-11-06 Brown Oil Tools Differential pressure fill-up shoe
US3130783A (en) * 1962-08-02 1964-04-28 Jersey Prod Res Co Cementing well pipe in stages
US3211232A (en) * 1961-03-31 1965-10-12 Otis Eng Co Pressure operated sleeve valve and operator
US3371717A (en) * 1965-09-21 1968-03-05 Baker Oil Tools Inc Multiple zone well production apparatus
US3510103A (en) * 1968-02-28 1970-05-05 Anthony J Carsello Valve and seal therefor
US3566964A (en) * 1967-11-09 1971-03-02 James B Ringgold Mud saver for drilling rigs
US3727635A (en) * 1971-07-12 1973-04-17 T Todd Pressure compensating trickle rate fluid outlet
US3867985A (en) * 1974-01-11 1975-02-25 Thelton E Wilkinson Apparatus for and method of preventing blow-out while removing a fish within wash pipe from a borehole
US4253524A (en) * 1979-06-21 1981-03-03 Kobe, Inc. High flow check valve apparatus
US4258801A (en) * 1979-06-14 1981-03-31 Eastman Whipstock, Inc. Dump valve for use with downhole motor
US4266605A (en) * 1980-04-28 1981-05-12 Laborde Russel G Wireline safety check valve
US4341272A (en) * 1980-05-20 1982-07-27 Marshall Joseph S Method for freeing stuck drill pipe
US4427062A (en) * 1981-03-17 1984-01-24 Boart International Limited Positioning of deflection wedges
US4574894A (en) * 1985-07-12 1986-03-11 Smith International, Inc. Ball actuable circulating dump valve
US4669538A (en) * 1986-01-16 1987-06-02 Halliburton Company Double-grip thermal expansion screen hanger and running tool
US4694855A (en) * 1984-09-28 1987-09-22 Hughes Tool Company - Usa Drill pipe inside blowout preventer
US4826135A (en) * 1987-02-12 1989-05-02 Scandot System Ab Arrangement for a valve assembly for a liquid jet printer
US4834620A (en) * 1987-01-02 1989-05-30 Aardvark Corporation Low horsepower apparatus and technique for raising liquid above the static surface level thereof
US4889199A (en) * 1987-05-27 1989-12-26 Lee Paul B Downhole valve for use when drilling an oil or gas well
US4893678A (en) * 1988-06-08 1990-01-16 Tam International Multiple-set downhole tool and method
US5297580A (en) * 1993-02-03 1994-03-29 Bobbie Thurman High pressure ball and seat valve with soft seal
US5332045A (en) * 1991-08-12 1994-07-26 Halliburton Company Apparatus and method for placing and for backwashing well filtration devices in uncased well bores
US5392862A (en) * 1994-02-28 1995-02-28 Smith International, Inc. Flow control sub for hydraulic expanding downhole tools
US5396953A (en) * 1993-07-30 1995-03-14 Halliburton Company Positive circulating valve with retrievable standing valve
US5494107A (en) * 1993-12-07 1996-02-27 Bode; Robert E. Reverse cementing system and method
US5593292A (en) * 1994-05-04 1997-01-14 Ivey; Ray K. Valve cage for a rod drawn positive displacement pump
US5673751A (en) * 1991-12-31 1997-10-07 Stirling Design International Limited System for controlling the flow of fluid in an oil well
US5695009A (en) * 1995-10-31 1997-12-09 Sonoma Corporation Downhole oil well tool running and pulling with hydraulic release using deformable ball valving member
US5730222A (en) * 1995-12-20 1998-03-24 Dowell, A Division Of Schlumberger Technology Corporation Downhole activated circulating sub
US5960881A (en) * 1997-04-22 1999-10-05 Jerry P. Allamon Downhole surge pressure reduction system and method of use
US5999687A (en) * 1996-11-10 1999-12-07 Laser Industries Limited Apparatus and method for delivering CO2 laser energy
US6283148B1 (en) * 1996-12-17 2001-09-04 Flowmore Systems, Inc. Standing valve with a curved fin
US6431270B1 (en) * 1996-12-02 2002-08-13 Intelligent Inspection Corporation Downhole tools with a mobility device
US6776240B2 (en) * 2002-07-30 2004-08-17 Schlumberger Technology Corporation Downhole valve
US20050126638A1 (en) * 2003-12-12 2005-06-16 Halliburton Energy Services, Inc. Check valve sealing arrangement
US7069997B2 (en) * 2002-07-22 2006-07-04 Corbin Coyes Valve cage insert
US7186182B2 (en) * 2004-06-07 2007-03-06 William R Wenzel Drive line for down hole mud motor
US20070261855A1 (en) * 2006-05-12 2007-11-15 Travis Brunet Wellbore cleaning tool system and method of use
US7331397B1 (en) * 2004-11-12 2008-02-19 Jet Lifting Systems, Ltd Gas drive fluid lifting system
US7500526B2 (en) * 2004-05-26 2009-03-10 Specialised Petroleum Services Group Limited Downhole tool
US7533728B2 (en) * 2007-01-04 2009-05-19 Halliburton Energy Services, Inc. Ball operated back pressure valve
US7640991B2 (en) * 2005-09-20 2010-01-05 Schlumberger Technology Corporation Downhole tool actuation apparatus and method
US7766034B2 (en) * 2003-07-22 2010-08-03 Ti Group Automotive Systems, L.L.C. Pressure control valve
US7775284B2 (en) * 2007-09-28 2010-08-17 Halliburton Energy Services, Inc. Apparatus for adjustably controlling the inflow of production fluids from a subterranean well
US7798236B2 (en) * 2004-12-21 2010-09-21 Weatherford/Lamb, Inc. Wellbore tool with disintegratable components

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191023018A (en) * 1910-10-05 1911-03-02 Petrie And Company Ltd Improvements in Multiple Ball Valves.
US1587877A (en) * 1924-04-21 1926-06-08 Idris Thomas Valve apparatus
US2891571A (en) * 1955-10-05 1959-06-23 Van J Sparks Multiple-ball valve
US4360063A (en) * 1980-12-04 1982-11-23 Otis Engineering Corporation Valve
JPH07113426B2 (en) * 1988-04-26 1995-12-06 儀信 小岩 Valve device
RU2007552C1 (en) * 1991-12-06 1994-02-15 Шеляго Владимир Викторович Method of seam hydraulic break and device for its realization
RU2099531C1 (en) * 1995-08-15 1997-12-20 Ахияров Влер Хатипович Device for pulsed stimulation of bed
CA2181671A1 (en) * 1996-07-19 1998-01-20 Rick Picher Downhole two-way check valve
US6155350A (en) * 1999-05-03 2000-12-05 Baker Hughes Incorporated Ball seat with controlled releasing pressure and method setting a downhole tool ball seat with controlled releasing pressure and method setting a downholed tool
GB0012124D0 (en) 2000-05-20 2000-07-12 Lee Paul B By-pass tool for use in a drill string
GB0104380D0 (en) 2001-02-22 2001-04-11 Lee Paul B Ball activated tool for use in downhole drilling
CN2544091Y (en) 2002-04-28 2003-04-09 庞艳文 Double-valve slag-proof device
US7108067B2 (en) * 2002-08-21 2006-09-19 Packers Plus Energy Services Inc. Method and apparatus for wellbore fluid treatment
CN2584867Y (en) 2002-10-14 2003-11-05 大庆油田有限责任公司 Double fluid dual pumping pump
RU2237152C1 (en) * 2003-03-03 2004-09-27 Открытое акционерное общество "Томский научно-исследовательский и проектный институт нефти и газа Восточной нефтяной компании" Device for stopping fluid flow in the well
GB0309038D0 (en) 2003-04-22 2003-05-28 Specialised Petroleum Serv Ltd Downhole tool
GB0409619D0 (en) * 2004-04-30 2004-06-02 Specialised Petroleum Serv Ltd Valve seat
US7387165B2 (en) * 2004-12-14 2008-06-17 Schlumberger Technology Corporation System for completing multiple well intervals
GB2435659B (en) 2005-03-15 2009-06-24 Schlumberger Holdings System for use in wells
GB0513140D0 (en) * 2005-06-15 2005-08-03 Lee Paul B Novel method of controlling the operation of a downhole tool
US20080011487A1 (en) * 2006-07-13 2008-01-17 Blackhawk Environmental Co. Drive piston and foot valve seat
US8074718B2 (en) 2008-10-08 2011-12-13 Smith International, Inc. Ball seat sub
US9181778B2 (en) * 2010-04-23 2015-11-10 Smith International, Inc. Multiple ball-ball seat for hydraulic fracturing with reduced pumping pressure

Patent Citations (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1258418A (en) * 1916-12-26 1918-03-05 Duston Kemble Jet-lift for wells.
US1712948A (en) * 1927-06-21 1929-05-14 Donald D Burch Apparatus for cementing oil wells
US1998833A (en) * 1930-03-17 1935-04-23 Baker Oil Tools Inc Cementing guide
US2105975A (en) * 1936-03-17 1938-01-18 Frank C Kniss Well pump
US2153034A (en) * 1936-10-10 1939-04-04 Baker Oil Tools Inc Cementing device for well casings
US2320670A (en) * 1939-07-12 1943-06-01 Oil Equipment Engineering Corp Well casing attachment
US2737244A (en) * 1952-04-25 1956-03-06 Baker Oil Tools Inc Multiple ball release devices for well tools
US2769454A (en) * 1954-01-13 1956-11-06 Modern Faucet Mfg Co Pressure control fittings
US2825412A (en) * 1954-05-21 1958-03-04 Houston Oil Field Mat Co Inc Well bore apparatus
US2799349A (en) * 1955-08-12 1957-07-16 Baker Oil Tools Inc Automatic casing filling apparatus
US2973006A (en) * 1957-09-30 1961-02-28 Koehring Co Flow control device
US3007527A (en) * 1958-01-27 1961-11-07 Koehring Co Flow control device
US3062296A (en) * 1960-12-01 1962-11-06 Brown Oil Tools Differential pressure fill-up shoe
US3211232A (en) * 1961-03-31 1965-10-12 Otis Eng Co Pressure operated sleeve valve and operator
US3130783A (en) * 1962-08-02 1964-04-28 Jersey Prod Res Co Cementing well pipe in stages
US3371717A (en) * 1965-09-21 1968-03-05 Baker Oil Tools Inc Multiple zone well production apparatus
US3566964A (en) * 1967-11-09 1971-03-02 James B Ringgold Mud saver for drilling rigs
US3510103A (en) * 1968-02-28 1970-05-05 Anthony J Carsello Valve and seal therefor
US3727635A (en) * 1971-07-12 1973-04-17 T Todd Pressure compensating trickle rate fluid outlet
US3867985A (en) * 1974-01-11 1975-02-25 Thelton E Wilkinson Apparatus for and method of preventing blow-out while removing a fish within wash pipe from a borehole
US4258801A (en) * 1979-06-14 1981-03-31 Eastman Whipstock, Inc. Dump valve for use with downhole motor
US4253524A (en) * 1979-06-21 1981-03-03 Kobe, Inc. High flow check valve apparatus
US4266605A (en) * 1980-04-28 1981-05-12 Laborde Russel G Wireline safety check valve
US4341272A (en) * 1980-05-20 1982-07-27 Marshall Joseph S Method for freeing stuck drill pipe
US4427062A (en) * 1981-03-17 1984-01-24 Boart International Limited Positioning of deflection wedges
US4694855A (en) * 1984-09-28 1987-09-22 Hughes Tool Company - Usa Drill pipe inside blowout preventer
US4574894A (en) * 1985-07-12 1986-03-11 Smith International, Inc. Ball actuable circulating dump valve
US4669538A (en) * 1986-01-16 1987-06-02 Halliburton Company Double-grip thermal expansion screen hanger and running tool
US4834620A (en) * 1987-01-02 1989-05-30 Aardvark Corporation Low horsepower apparatus and technique for raising liquid above the static surface level thereof
US4826135A (en) * 1987-02-12 1989-05-02 Scandot System Ab Arrangement for a valve assembly for a liquid jet printer
US4889199A (en) * 1987-05-27 1989-12-26 Lee Paul B Downhole valve for use when drilling an oil or gas well
US4893678A (en) * 1988-06-08 1990-01-16 Tam International Multiple-set downhole tool and method
US5332045A (en) * 1991-08-12 1994-07-26 Halliburton Company Apparatus and method for placing and for backwashing well filtration devices in uncased well bores
US5673751A (en) * 1991-12-31 1997-10-07 Stirling Design International Limited System for controlling the flow of fluid in an oil well
US5297580A (en) * 1993-02-03 1994-03-29 Bobbie Thurman High pressure ball and seat valve with soft seal
US5396953A (en) * 1993-07-30 1995-03-14 Halliburton Company Positive circulating valve with retrievable standing valve
US5494107A (en) * 1993-12-07 1996-02-27 Bode; Robert E. Reverse cementing system and method
US5392862A (en) * 1994-02-28 1995-02-28 Smith International, Inc. Flow control sub for hydraulic expanding downhole tools
US5593292A (en) * 1994-05-04 1997-01-14 Ivey; Ray K. Valve cage for a rod drawn positive displacement pump
US5695009A (en) * 1995-10-31 1997-12-09 Sonoma Corporation Downhole oil well tool running and pulling with hydraulic release using deformable ball valving member
US5730222A (en) * 1995-12-20 1998-03-24 Dowell, A Division Of Schlumberger Technology Corporation Downhole activated circulating sub
US5999687A (en) * 1996-11-10 1999-12-07 Laser Industries Limited Apparatus and method for delivering CO2 laser energy
US6431270B1 (en) * 1996-12-02 2002-08-13 Intelligent Inspection Corporation Downhole tools with a mobility device
US6283148B1 (en) * 1996-12-17 2001-09-04 Flowmore Systems, Inc. Standing valve with a curved fin
US5960881A (en) * 1997-04-22 1999-10-05 Jerry P. Allamon Downhole surge pressure reduction system and method of use
US7069997B2 (en) * 2002-07-22 2006-07-04 Corbin Coyes Valve cage insert
US6776240B2 (en) * 2002-07-30 2004-08-17 Schlumberger Technology Corporation Downhole valve
US7766034B2 (en) * 2003-07-22 2010-08-03 Ti Group Automotive Systems, L.L.C. Pressure control valve
US20050126638A1 (en) * 2003-12-12 2005-06-16 Halliburton Energy Services, Inc. Check valve sealing arrangement
US7500526B2 (en) * 2004-05-26 2009-03-10 Specialised Petroleum Services Group Limited Downhole tool
US7186182B2 (en) * 2004-06-07 2007-03-06 William R Wenzel Drive line for down hole mud motor
US7331397B1 (en) * 2004-11-12 2008-02-19 Jet Lifting Systems, Ltd Gas drive fluid lifting system
US7798236B2 (en) * 2004-12-21 2010-09-21 Weatherford/Lamb, Inc. Wellbore tool with disintegratable components
US7640991B2 (en) * 2005-09-20 2010-01-05 Schlumberger Technology Corporation Downhole tool actuation apparatus and method
US20070261855A1 (en) * 2006-05-12 2007-11-15 Travis Brunet Wellbore cleaning tool system and method of use
US7533728B2 (en) * 2007-01-04 2009-05-19 Halliburton Energy Services, Inc. Ball operated back pressure valve
US7775284B2 (en) * 2007-09-28 2010-08-17 Halliburton Energy Services, Inc. Apparatus for adjustably controlling the inflow of production fluids from a subterranean well

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9682425B2 (en) 2009-12-08 2017-06-20 Baker Hughes Incorporated Coated metallic powder and method of making 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
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US9045963B2 (en) 2010-04-23 2015-06-02 Smith International, Inc. High pressure and high temperature ball seat
US9181778B2 (en) * 2010-04-23 2015-11-10 Smith International, Inc. Multiple ball-ball seat for hydraulic fracturing with reduced pumping pressure
US20120061103A1 (en) * 2010-04-23 2012-03-15 Smith International, Inc. Multiple ball- ball seat for hydraulic fracturing with reduced pumping pressure
US9404330B2 (en) 2010-07-12 2016-08-02 Schlumberger Technology Corporation Method and apparatus for a well employing the use of an activation ball
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
US20150354312A1 (en) * 2011-06-17 2015-12-10 Baker Hughes Incorporated Corrodible downhole article and method of removing the article from downhole environment
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
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
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
US10301909B2 (en) 2011-08-17 2019-05-28 Baker Hughes, A Ge Company, Llc Selectively degradable passage restriction
US9856547B2 (en) 2011-08-30 2018-01-02 Bakers Hughes, A Ge Company, Llc Nanostructured powder metal compact
US9802250B2 (en) 2011-08-30 2017-10-31 Baker Hughes Magnesium alloy powder metal compact
US11090719B2 (en) 2011-08-30 2021-08-17 Baker Hughes, A Ge Company, Llc Aluminum alloy powder metal compact
US9925589B2 (en) 2011-08-30 2018-03-27 Baker Hughes, A Ge Company, Llc Aluminum alloy powder metal compact
US10737321B2 (en) 2011-08-30 2020-08-11 Baker Hughes, A Ge Company, Llc 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
US9926766B2 (en) 2012-01-25 2018-03-27 Baker Hughes, A Ge Company, Llc Seat for a tubular treating system
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
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
US9777853B2 (en) * 2014-06-13 2017-10-03 Aeris Technology LLC Valve assembly for controlling fluid communication between fluid chambers, inflatable device, and method
US20160377189A1 (en) * 2014-06-13 2016-12-29 Aeris Technology LLC Valve assembly for controlling fluid communication between fluid chambers, inflatable device, and method
US9456701B2 (en) * 2014-06-13 2016-10-04 Aeris Technology LLC Valve assembly for controlling fluid communication between fluid chambers, inflatable device, and method
US20150362077A1 (en) * 2014-06-13 2015-12-17 Aeris Technology LLC Valve assembly for controlling fluid communication between fluid chambers, inflatable device, and method
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
WO2016186519A1 (en) * 2015-05-20 2016-11-24 Statoil Petroleum As Method and apparatus for sealing an annulus around a drill-pipe when drilling down-hole
US10443342B2 (en) 2015-05-20 2019-10-15 Statoil Petroleum As Method and apparatus for sealing an annulus around a drill-pipe when drilling down-hole
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
US20190338617A1 (en) * 2018-05-02 2019-11-07 Baker Hughes, A Ge Company, Llc Plug seat with enhanced fluid distribution and system
US10794142B2 (en) * 2018-05-02 2020-10-06 Baker Hughes, A Ge Company, Llc Plug seat with enhanced fluid distribution and system
CN113324049A (en) * 2021-06-25 2021-08-31 中航光电科技股份有限公司 Novel runner on-off control switch

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US9316089B2 (en) 2016-04-19
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AU2010258794A1 (en) 2010-12-16
EP2440741A4 (en) 2014-11-19

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