Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712)
06/2000
06/28/2000EP0977931A4 Multizone production monitoring system
06/28/2000CN1053968C Improved slick line system with real-time surface display
06/27/2000US6079505 System and method for the acquisition of physical data linked to a drilling operation in progress
06/27/2000US6079494 Methods of completing and producing a subterranean well and associated apparatus
06/27/2000US6079493 Methods of completing a subterranean well and associated apparatus
06/22/2000WO2000036266A1 Electro-hydraulically controlled tractor
06/22/2000WO2000009855A9 Hydraulic well control system
06/21/2000EP0815344B1 Whipstock
06/21/2000CN2383961Y Anti-resisting locking device for tool in oil well
06/20/2000US6076606 Through-tubing retrievable whipstock system
06/18/2000CA2686627A1 Electrically sequenced tractor
06/18/2000CA2292816A1 System for the permanent installation of sensors against the inner surface of a duct
06/15/2000WO2000034621A2 High load, thin slip system
06/15/2000DE19919555C1 Extraction of geothermal energy from blind bores involves closed circuit feed of heat transmission medium with first chamber in heat exchanger tube for feed of cold fluid
06/14/2000EP1008719A1 Method and apparatus for remote control of multilateral wells
06/13/2000US6073693 Downhole anchor
06/13/2000CA2179184C Whipstock apparatus and methods of use
06/07/2000EP1006322A2 Method of inserting a heat exchanger into the ground and ground heat exchanger
06/07/2000CN2381769Y Well controlled pipe concentraling device
06/06/2000USRE36723 Spoolable coiled tubing completion system
06/06/2000US6070672 Apparatus and method for downhole tool actuation
06/06/2000US6070667 Lateral wellbore connection
06/06/2000US6070662 Formation pressure measurement with remote sensors in cased boreholes
06/02/2000WO2000031417A1 Through-tubing, retrievable downhole pump system
06/02/2000WO2000031376A2 Method and system for accessing subterranean deposits from the surface
06/02/2000WO2000031370A1 Method for installing tubular members axially into an over-pressured region of the earth
06/02/2000CA2792184A1 Method and system for accessing subterranean deposits from the surface
05/2000
05/31/2000EP1004745A2 Downhole pressure actuated locating system and locating method
05/30/2000CA2019421C Apparatus used for well drilling operations and method therefor
05/25/2000WO2000029712A1 Apparatus for delivering a flowable substance to a remote location
05/25/2000WO2000029710A2 Wellbore flow control device
05/25/2000WO2000029708A2 Method and apparatus for selective injection or flow control
05/24/2000EP1002933A2 Downhole hydraulic pressure generator
05/23/2000US6065541 Cleaning device
05/23/2000US6065538 Method of obtaining improved geophysical information about earth formations
05/23/2000US6065536 Apparatus for setting a liner in a well casing
05/17/2000EP1000221A1 Electro-hydraulic well tool actuator
05/16/2000US6062905 Male pin connector
05/16/2000US6062315 Downhole tool motor
05/16/2000US6062309 Torque roller anchor
05/16/2000US6062073 In situ borehole sample analyzing probe and valved casing coupler therefor
05/11/2000WO2000026501A1 Wellbore system including a conduit and an expandable device
05/10/2000EP0999343A2 Method and apparatus for actuating a downhole device
05/10/2000EP0999342A2 Method and apparatus for controlling actuation of a tool within a subterranean wellbore
05/10/2000EP0999339A2 Metal-to-metal seal assembly for oil and gas production apparatus
05/10/2000EP0999338A1 Remotely operable actuator for use in subterranean wells
05/10/2000EP0999337A2 Remotely actuated well plug apparatus
05/10/2000EP0938622A4 Method for accelerating production - c-i-p ii
05/10/2000CN1252851A Using equipment in a well system
05/09/2000US6059661 Shaft alignment
05/09/2000US6059053 Retraction system for a latching mechanism of a tool
05/09/2000US6059042 Completions insertion and retrieval under pressure (CIRP) apparatus including the snaplock connector
05/09/2000US6059041 Apparatus and methods for achieving lock-out of a downhole tool
05/09/2000US6059033 Apparatus for completing a subterranean well and associated methods
05/03/2000EP0996826A1 Hydraulic fluid actuator with metal to metal seals
05/03/2000EP0996812A1 Deformed multiple well template and process of use
05/03/2000EP0996806A1 Method and apparatus for moving a piston
05/03/2000EP0828920A4 A simplified sealing and anchoring device for a well tool
05/02/2000US6056061 Apparatus for completing a subterranean well and associated methods
04/2000
04/27/2000WO1999024691A9 Reciprocating running tool
04/26/2000EP0871816B1 Release mechanism
04/25/2000US6053246 High flow rate formation fracturing and gravel packing tool and associated methods
04/25/2000US6053244 Release mechanism
04/19/2000EP0994236A2 Indexing mechanism
04/19/2000CA2286950A1 Bottom hole assembly with coiled tubing insert
04/18/2000US6050342 Apparatus and method for setting a compression set packer
04/18/2000US6050341 Downhole running tool
04/18/2000US6050340 Downhole pump installation/removal system and method
04/18/2000US6050336 Method and apparatus to isolate a specific zone
04/18/2000US6050334 Single trip whipstock assembly
04/13/2000WO2000020721A1 Hydraulic switch device
04/12/2000CN2373558Y Locking and delocking mechanism for oil extraction underground tool
04/07/2000CA2285409A1 Multiple line hydraulic system flush valve
04/05/2000CN1249392A Measurement of rock pressure using distance sensor in casing drilling
04/04/2000US6046685 Redundant downhole production well control system and method
04/04/2000US6045171 Spear head assembly
04/04/2000US6044909 Apparatus and methods for locating tools in subterranean wells
04/04/2000US6044906 Inflatable tubular sleeve for tubing or obturating a well or pipe
03/2000
03/29/2000EP0989284A2 Underbalanced well completion
03/29/2000EP0988439A1 Casing annulus remediation system
03/28/2000US6041874 Tubular actuator component for use in a drill string
03/28/2000US6041862 Ground heat exchange system
03/28/2000US6041860 Apparatus and method for performing imaging and downhole operations at a work site in wellbores
03/23/2000WO2000015945A1 Method and apparatus for downhole safety valve remediation
03/23/2000WO2000015941A1 Through-tubing retrievable whipstock system
03/22/2000EP0987400A1 Method and apparatus for remote control of multilateral wells
03/21/2000US6039129 Locking system for a firing mechanism of a downhole tool
03/16/2000WO2000014383A1 In situ borehole sample analyzing probe and valved casing coupler therefor
03/15/2000EP0985799A2 Underbalanced well completion
03/15/2000EP0985797A2 Underbalanced well completion
03/14/2000US6035939 Wellbore anchor system
03/14/2000US6035880 Pressure activated switch valve
03/09/2000DE19839873A1 Arrangement for raising and lowering cleaning device in vertical, clad earth shaft, e.g. well shaft, has motor-driven winch above ground with pipe section on drum with central connector
03/08/2000EP0984135A2 Formation pressure measurement with remote sensors in cased boreholes
03/08/2000EP0801703B1 Apparatus for deploying wireline
03/07/2000US6032734 Activating means for a down-hole tool
03/07/2000US6032733 Cable head
02/2000
02/29/2000US6029744 Method and apparatus for retrieving fluid samples during drill stem tests
02/24/2000WO2000009855A1 Hydraulic well control system
02/24/2000WO2000009854A1 Method and apparatus for anchoring a tool within a cased borehole
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