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)
03/2010
03/04/2010WO2010024818A1 Bypass of damaged lines in subterranean wells
03/04/2010WO2010005893A3 Locking arrangement to store setting forces
03/04/2010WO2009151768A3 Backoff sub and method for remotely backing off a target joint
03/04/2010WO2009140597A3 Jointed spearhead assembly
03/04/2010US20100051293 Downhole tool with load diverting system and method
03/04/2010US20100051292 Drill Bit With Weight And Torque Sensors
03/04/2010US20100051262 Sand Control Screen Assembly and Method for Use of Same
03/04/2010US20100051260 Fluid Isolating Pressure Equalization in Subterranean Well Tools
03/04/2010US20100051256 Downhole Tool String Component that is Protected from Drilling Stresses
03/02/2010US7669665 Mandrel for introduction into a fluid circulation duct, and related production well
03/02/2010US7669664 Apparatus and method for opening and closing lateral boreholes
03/02/2010US7669663 Resettable actuator for downhole tool
03/02/2010US7669653 System and method for maintaining zonal isolation in a wellbore
03/02/2010US7669648 Polymer shock absorber for use with well head lubricator assembly
03/02/2010CA2490967C Composite spoolable tube
03/02/2010CA2356130C Method and apparatus for drilling and lining a wellbore
03/02/2010CA2311254C A circulating sub apparatus and method
02/2010
02/25/2010WO2010022161A1 Tubing hanger
02/25/2010WO2009143474A3 Circulation system for retrieval of bottom hole assembly during casing while drilling operations
02/25/2010WO2009143469A3 Monitoring flow rates while retrieving bottom hole assembly during casing while drilling operations
02/25/2010WO2009143396A3 Incremental u-tube process to retrieve of bottom hole assembly during casing while drilling operations
02/25/2010WO2009143393A3 Controlling backflow pressure during retrieval of bottom hole assembly
02/25/2010US20100044057 Treatment Fluids Comprising Pumicite and Methods of Using Such Fluids in Subterranean Formations
02/25/2010US20100044056 Method of Activating a Downhole Tool Assembly
02/25/2010US20100044055 Well Tool Latching System
02/25/2010US20100044029 Active control and/or monitoring of expandable tubular devices
02/25/2010CA2734186A1 Tubing hanger
02/24/2010EP2156009A2 Improved activation device
02/24/2010CN201412097Y Hydraulic expansion type hanger for expansion sieve tube
02/24/2010CN201412096Y Drill rod storage bin
02/23/2010US7665531 Apparatus for facilitating the connection of tubulars using a top drive
02/23/2010US7665516 Permanent anchoring device
02/23/2010CA2483957C Method of drilling and completing multiple wellbores inside a single caisson
02/23/2010CA2394247C A drillpipe sub
02/18/2010WO2010019673A1 Well completion system
02/18/2010WO2010018366A2 A controller for a downhole tool
02/18/2010US20100038138 Tractor with improved valve system
02/18/2010US20100038096 Downhole Tool with Slip Releasing Mechanism
02/18/2010US20100038088 Multi-function multi-hole drilling rig
02/18/2010US20100038076 Expandable tubulars for use in geologic structures
02/18/2010US20100038072 Sealing and anchoring device for use in a well
02/18/2010CA2733793A1 A controller for a downhole tool
02/18/2010CA2733594A1 Wireline retrievable dsg/downhole pump system for cyclic steam and continuous steam flooding operations in petroleum reservoirs
02/17/2010EP2153015A1 Downhole flow control tool and method
02/16/2010USRE41118 Annular isolators for expandable tubulars in wellbores
02/16/2010US7661478 Ball drop circulation valve
02/16/2010US7661473 Expansion enhancement device
02/16/2010US7661470 Expandable packer with anchoring feature
02/16/2010CA2384815C Downhole latch assembly and method of using the same
02/13/2010CA2686510A1 Consumable downhole tool
02/11/2010WO2009120578A4 Telescoping wiper plug
02/11/2010US20100032170 Method and apparatus for running tubulars
02/11/2010US20100032169 Method and Apparatus for Expanded Liner Extension Using Uphole Expansion
02/11/2010US20100032168 Method and Apparatus for Expanded Liner Extension Using Downhole then Uphole Expansion
02/11/2010US20100032167 Method for Making Wellbore that Maintains a Minimum Drift
02/11/2010US20100032031 Fluid supply system
02/10/2010EP1355169B1 Method and apparatus for controlling chemical injection of a surface treatment system
02/10/2010CN201401141Y Taking-out machine for technical pipe and casing pipe of scrapped oil well
02/10/2010CN101644147A Feeding and salvaging tool of electronic single/multi-point measurement instrument suitable for gas drilling
02/04/2010WO2010014860A2 Method of circulating while retrieving downhole tool in casing
02/04/2010WO2009117478A4 Torque-provider
02/04/2010US20100025049 Swelling delay cover for a packer
02/04/2010US20100025048 U-Shaped fiber optical cable assembly for use in a heated well and methods for in-stalling and using the assembly
02/04/2010US20100025047 Method and apparatus for retrieving an assembly from a wellbore
02/04/2010US20100025035 Swelling Delay Cover for a Packer
02/04/2010US20100025032 Methods and systems to activate downhole tools with light
02/03/2010EP2149671A2 Method and apparatus for retrieving an assembly from a wellbore
02/03/2010EP2148973A1 Method and apparatus for dropping a pump down plug or ball
02/03/2010CN201396090Y Multi-stage separator packing means outside tube for underbalance well cementation and completion
02/03/2010CN201396089Y Subsurface pressure gauge delivering and fishing device
02/03/2010CN201396088Y Well measuring instrument conveyer
02/02/2010US7654334 Downhole tool and running tool system for retrievably setting a downhole tool at locations within a well bore
02/02/2010US7654332 Apparatus and methods for radially expanding a tubular member
02/02/2010CA2641601C Method and apparatus to complete a well having tubing inserted through a valve
02/01/2010CA2674350A1 Method and apparatus for retrieving an assembly from a wellbore
01/2010
01/28/2010US20100018720 Expandable ramp gripper
01/28/2010US20100018713 Launching tool with interlock system for downhole cement plug and method
01/28/2010US20100018696 Downhole tool
01/28/2010US20100018695 Gripper assembly for downhole tools
01/28/2010US20100018692 Logging Head Release Mechanism
01/27/2010CN201391260Y Combined-type tool for replacing packing of oil pumping unit
01/27/2010CN201391259Y Horizontal well logging conveying device
01/26/2010US7650946 Disconnect apparatus and method
01/26/2010CA2468545C Downhole assembly releasable connection
01/21/2010WO2010008958A2 A method and downhole tool actuator
01/21/2010WO2009131844A3 Subsea inflatable bridge plug inflation system
01/21/2010WO2009129116A3 Combination whipstock and seal bore diverter system
01/21/2010US20100012320 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
01/21/2010US20100012315 Wireline tractor device
01/21/2010CA2730494A1 A method and downhole tool actuator
01/20/2010EP2146047A2 Disconnect device
01/14/2010WO2010005893A2 Locking arrangement to store setting forces
01/14/2010US20100006302 Locking arrangement to store setting forces
01/14/2010US20100006279 Intervention Tool with Operational Parameter Sensors
01/13/2010EP1963617B1 Slotted slip element for expandable packer
01/13/2010CN201381815Y Locking device of hydrodynamic reverse circulation ejector pump
01/13/2010CN201381811Y Tube pressurizing device
01/13/2010CN101624902A Anchor for coaxially bidirectionally anchoring oil pump
01/13/2010CN101624901A Anchoring device of screw pump
01/12/2010US7644766 Flushing device and method of flushing an annular space
1 ... 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ... 128