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)
09/2010
09/22/2010CN201588574U Downhole anti-extinguishing borehole pull-out device
09/21/2010US7798232 Connecting compliant tubular members at subsea locations
09/16/2010WO2010105067A2 Anchoring system and method
09/16/2010WO2010102572A1 Cable head for petroleum logging
09/16/2010US20100230116 Anchoring system and method
09/16/2010US20100230114 Wireline run fracture isolation sleeve and plug and method of operating same
09/16/2010US20100230101 Method and apparatus to cement a perforated casing
09/16/2010US20100230090 Low Cost Rigless Intervention and Production System
09/16/2010CA2754723A1 Anchoring system and method
09/15/2010CN101832117A Over-cable connection joint
09/15/2010CN101429858B Oil field shaft mouth clamping seat
09/14/2010US7793733 Valve trigger for downhole tools
09/14/2010US7793731 Entry swivel apparatus and method
09/14/2010US7793721 Apparatus for radially expanding and plastically deforming a tubular member
09/14/2010CA2453034C Liner hanger
09/10/2010WO2010030422A9 Sneak path eliminator for diode multiolexed control of downhole well tools
09/09/2010US20100224374 Apparatus and Method for Lubricating and Injecting Downhole Equipment Into a Wellbore
09/09/2010US20100224372 Hydraulically released window mill
09/09/2010US20100224368 Deployment of insulated conductors for treating subsurface formations
09/09/2010US20100224358 Casing Device
09/08/2010CN201574726U Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields
09/08/2010CN201574711U Downhole steel wire operation tool
09/08/2010CN201574708U Executing device capable of realizing function of ascending and descending well repeatedly
09/08/2010CN201574707U Tube internal self-adaptive linkage telescopic mechanism
09/08/2010CN101824981A Test string for stimulating produced liquid section of pumping unit
09/08/2010CN101824964A Downhole drill of intelligent underground multi-branch horizontal drilling completion system
09/07/2010US7789140 System and method for radially expanding and plastically deforming a wellbore casing
09/07/2010US7789134 Downhole/openhole anchor
09/07/2010CA2572516C Flow control apparatus for use in a wellbore
09/02/2010WO2010096860A1 Head assembly
09/02/2010US20100219980 Method and system for performing operations and for improving production in wells
09/02/2010US20100218956 Apparatus for and method of securing a centralizer to a tubular
09/02/2010CA2752894A1 Head assembly
09/01/2010EP1583886B1 Isolated electrical connection in a drill string
09/01/2010CN201568000U Integral-type platform oil producing wellhead device
09/01/2010CN201567990U Sealed combination device of electric pump cable
09/01/2010CN201567989U Hydraulic release device
09/01/2010CN201567983U Coal bed gas-well bridge type non-pollution continuous coal ash flushing technological pipe column
09/01/2010CN101821473A Circulation control valve and associated method
09/01/2010CN101173601B Rotatable hydraulic expanding type tail pipe hanger
08/2010
08/31/2010US7784564 Method to perform operations in a wellbore using downhole tools having movable sections
08/31/2010US7784552 Liner drilling method
08/31/2010US7784551 Tubular handling device
08/31/2010US7784549 Self-propelled swabbing device and method
08/31/2010CA2604297C Downhole position locating device with fluid metering feature
08/31/2010CA2440742C Expander for expanding a tubular element
08/26/2010WO2010096361A1 Fail as is mechanism and method
08/26/2010WO2010096206A2 Apparatus and method for controlling the connection and disconnection speed of downhole connectors
08/26/2010US20100212914 Hydraulic Installation Method and Apparatus for Installing a Submersible Pump
08/26/2010US20100212913 Drilling and Completion Deflector
08/26/2010US20100212895 Screen Flow Equalization System
08/26/2010US20100212891 Swellable Material Activation and Monitoring in a Subterranean Well
08/26/2010US20100212887 Gripper assembly for downhole tools
08/26/2010US20100212886 Downhole Tool Actuation having a Seat with a Fluid By-Pass
08/26/2010US20100212885 Downhole Tool Actuation having a Seat with a Fluid By-Pass
08/26/2010US20100212884 Ratchet Mechanism in a Fluid Actuated Device
08/26/2010US20100212882 Linearly actuated hydraulic switch
08/25/2010EP2221448A2 Fluid metering device and method for well tool
08/25/2010EP2221447A2 Slip segments for downhole tool
08/25/2010CN201560732U Wellhead sealing packing extruding and pulling-out device for pumping unit
08/25/2010CN201560726U Counter pressurizing mechanism of hydraulic pressure balance workover rig
08/24/2010US7779926 Wellbore plug adapter kit and method of using thereof
08/24/2010US7779924 Method and apparatus for use in a wellbore
08/24/2010US7779923 Methods and apparatus for anchoring and expanding tubular members
08/24/2010US7779920 Controlling backflow pressure during retrieval of bottom hole assembly
08/24/2010US7779916 Apparatus for subsea intervention
08/24/2010US7779910 Expansion cone for expandable liner hanger
08/24/2010US7779906 Downhole tool with multiple material retaining ring
08/19/2010WO2010092352A2 Method and apparatus for multi-zone stimulation
08/19/2010US20100206585 Expandable Casing With Enhanced Collapse Resistance and Sealing Capability
08/19/2010US20100206581 Shearing tool and methods of use
08/19/2010US20100206580 Tools and Methods Useful with Wellbore Reverse Circulation
08/19/2010US20100206571 Method and apparatus for setting an inflatable packer in a subhydrostatic wellbore
08/19/2010US20100206568 Devices, Systems and Methods for Equalizing Pressure in a Gas Well
08/19/2010US20100206561 Apparatus and Method for Controlling the Connection and Disconnection Speed of Downhole Connectors
08/19/2010US20100206552 Actuator Device
08/19/2010US20100206550 Slip segments for downhole tool
08/19/2010US20100206544 Integrated Cable Hanger Pick-Up System
08/19/2010CA2751324A1 Downhole tool
08/18/2010EP2217789A2 Tool storage assembly
08/18/2010CN201554402U Mandrel type hanger
08/18/2010CN1924284B Device for staging actions prevention for underwell hydraulic tools
08/18/2010CN1777736B Well string assembly
08/17/2010US7775290 Apparatus for radially expanding and plastically deforming a tubular member
08/17/2010US7775287 Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods
08/17/2010CA2387881C Method and apparatus for operations in underground subsea oil and gas wells
08/12/2010WO2010091404A1 Method of detecting fluid in-flows downhole
08/12/2010WO2010065409A3 Actuator for downhole tools
08/12/2010WO2010059536A3 Modifying expansion forces by adding compression
08/12/2010WO2010057003A3 Inserts with swellable elastomer seals for side pocket mandrels
08/12/2010US20100200245 Hydraulic Lockout Device for Pressure Controlled Well Tools
08/12/2010US20100200236 Method of Circulating While Retrieving Bottom Hole Assembly in Casing
08/12/2010US20100200220 Pressure Equalization Device for Downhole Tools
08/12/2010US20100200218 Apparatus and method for treating zones in a wellbore
08/12/2010US20100200217 System for supporting components within a tubular housing of a wellbore
08/12/2010CA2749679A1 Method of detecting fluid in-flows downhole
08/11/2010EP2216500A2 Hydraulic lockout device for pressure controlled well tools
08/11/2010EP2216498A2 Latch position indicator system and method
08/11/2010CN201546702U Anti-drop device for indicator diagram tester of pumping well
08/11/2010CN201546650U Sensor retracting/releasing device on casing stress magnetic memory detector
1 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ... 128