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Patent

Hänvisningar finns i följande patent

citeras i Registreringsdatum Utfärdandedatum Ursprunglig innehavare Titel
US405916514 jul 197622 nov 1977Versatile fluid motor and pump
US408341518 dec 197511 apr 1978Kennametal Inc.Mining bit with replaceable work engaging member
US40969178 feb 197727 jun 1978Earth drilling knobby bit
US41687558 aug 197725 sep 1979Walker-Neer Manufacturing Co.Nutating drill bit
US418792212 maj 197812 feb 1980Dresser Industries, Inc.Varied pitch rotary rock bit
US435140227 maj 198028 sep 1982Body structure and nozzle for enhancing the flow of drilling fluid in a rotary drill bit
US444693520 sep 19828 maj 1984Reed Tool Company (Delaware)Intermittent high-drag oil well drilling bit
US458064225 jun 19848 apr 1986Zero deviation drill bits
US462460530 mar 198425 nov 1986Kabushiki Kaisha Iseki Kaihatsu KokiShield tunneling apparatus
US643932610 apr 200027 aug 2002Smith International, Inc.Centered-leg roller cone drill bit
US686884818 nov 200222 mar 2005The Commonwealth of Australia Commonwealth Scientific and Industrial Research OrganizationCutting tool and method of using same
US718240720 jan 200027 feb 2007Odyssey Technology Pty LtdRock boring device with an oscillating and nutating rotary disc cutter
US722588622 dec 20055 jun 2007Drill bit assembly with an indenting member
US72581792 jun 200621 aug 2007Rotary bit with an indenting member
US732588222 apr 20035 feb 2008Odyssey Technology Pty LtdRock cutting machine
US738410422 apr 200310 jun 2008Odyssey Technology Pty LtdOscillating disc cutter with speed controlling bearings
US73928573 jan 20071 jul 2008Apparatus and method for vibrating a drill bit
US74190161 mar 20072 sep 2008Bi-center drill bit
US74190181 nov 20062 sep 2008Cam assembly in a downhole component
US742492215 mar 200716 sep 2008Rotary valve for a jack hammer
US74314026 dec 20067 okt 2008Odyssey Technology Pty LtdRock boring device
US746170626 mar 20079 dec 2008Andergauge LimitedDrilling apparatus with percussive action cutter
US748457612 feb 20073 feb 2009Jack element in communication with an electric motor and or generator
US749727929 jan 20073 mar 2009Jack element adapted to rotate independent of a drill bit
US752711013 okt 20065 maj 2009Percussive drill bit
US753373712 feb 200719 maj 2009Jet arrangement for a downhole drill bit
US755937910 aug 200714 jul 2009Downhole steering
US757178025 sep 200611 aug 2009Jack element for a drill bit
US759132730 mar 200722 sep 2009Drilling at a resonant frequency
US760058615 dec 200613 okt 2009System for steering a drill string
US761788625 jan 200817 nov 2009Fluid-actuated hammer bit
US764100228 mar 20085 jan 2010Drill bit
US766148731 mar 200916 feb 2010Downhole percussive tool with alternating pressure differentials
US769475612 okt 200713 apr 2010Indenting member for a drill bit
US77218266 sep 200725 maj 2010Schlumberger Technology CorporationDownhole jack assembly sensor
US776235328 feb 200827 jul 2010Schlumberger Technology CorporationDownhole valve mechanism
US78664164 jun 200711 jan 2011Schlumberger Technology CorporationClutch for a jack element
US788685112 okt 200715 feb 2011Schlumberger Technology CorporationDrill bit nozzle
US790072014 dec 20078 mar 2011Schlumberger Technology CorporationDownhole drive shaft connection
US795440127 okt 20067 jun 2011Schlumberger Technology CorporationMethod of assembling a drill bit with a jack element
US796708228 feb 200828 jun 2011Schlumberger Technology CorporationDownhole mechanism
US79670839 nov 200928 jun 2011Schlumberger Technology CorporationSensor for determining a position of a jack element
US801145726 feb 20086 sep 2011Schlumberger Technology CorporationDownhole hammer assembly
US802047127 feb 200920 sep 2011Schlumberger Technology CorporationMethod for manufacturing a drill bit
US812298022 jun 200728 feb 2012Schlumberger Technology CorporationRotary drag bit with pointed cutting elements
US81301178 jun 20076 mar 2012Schlumberger Technology CorporationDrill bit with an electrically isolated transmitter
US819165131 mar 20115 jun 2012Sensor on a formation engaging member of a drill bit
US820189210 dec 200719 jun 2012Holder assembly
US820568824 jun 200926 jun 2012Lead the bit rotary steerable system
US82154206 feb 200910 jul 2012Schlumberger Technology CorporationThermally stable pointed diamond with increased impact resistance
US822588331 mar 200924 jul 2012Schlumberger Technology CorporationDownhole percussive tool with alternating pressure differentials
US824040410 sep 200814 aug 2012Roof bolt bit
USD62051026 feb 200827 jul 2010Schlumberger Technology CorporationDrill bit