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)
06/2010
06/16/2010EP2195508A2 Externally activated seal system for wellhead
06/16/2010EP2195507A1 Circulation control valve and associated method
06/16/2010CN201507259U Anchor below screw pump
06/16/2010CN201507258U Executing device for underground tool passing through water distributor in reciprocating manner
06/16/2010CN201507257U Anti-drop anchor of oil string
06/16/2010CN101122214B Mechanical swelling type screen pipe hanger
06/15/2010US7735566 One trip completion system
06/15/2010US7735564 Logging tool deployment systems and methods with pressure compensation
06/15/2010US7735549 Drillable down hole tool
06/10/2010WO2010065409A2 Actuator for downhole tools
06/10/2010WO2010065405A2 Downhole shape memory alloy actuator and method
06/10/2010WO2009085813A3 Ball dropping assembly and technique for use in a well
06/10/2010WO2009051490A8 Casing device
06/10/2010US20100139928 Replaceable sleeve for a cylinder liner
06/10/2010US20100139917 System and method for sealing gravel exit ports in gravel pack assemblies
06/10/2010US20100139909 Intelligent Well Control System for Three or More Zones
06/10/2010US20100139461 Granular Particle Gripping Surface
06/09/2010CN201502347U Large-diameter and high-strength tubing anchor
06/09/2010CN201502346U Device for replacing ram of ram preventer
06/08/2010US7730968 Apparatus for wellbore communication
06/08/2010US7730954 Hydraulic control and actuation system for downhole tools
06/08/2010US7730941 Expandable tool with enhanced expansion capability
06/08/2010US7730940 Split body swelling packer
06/08/2010CA2563860C Controlled shared load casing jack system and method
06/08/2010CA2554066C Mechanically opened ball seat and expandable ball seat
06/08/2010CA2530915C Apparatus and methods for operating a tool in a wellbore
06/03/2010WO2010062186A1 Down hole actuator
06/03/2010US20100133864 Gripping means for use with a unit insertable in a pipeline
06/03/2010US20100132958 Expandable tubular installation systems, methods, and apparatus
06/03/2010US20100132957 Downhole shape memory alloy actuator and method
06/03/2010US20100132955 Method and system for deploying sensors in a well bore using a latch and mating element
06/03/2010US20100132952 Method for casing using multiple expanded areas and using at least one inflatable bladder
06/02/2010CN201496016U Creeping compensator
06/02/2010CN201496015U Tail pipe hanging device
06/02/2010CN101718190A Completed well body structure with temporary plugging function screen pipe and well completion method for suspending screen pipe at tail pipe
06/02/2010CN101718179A Safe setting method of expansion pipe
06/02/2010CN101718178A Method for continuously washing coal ash under coal bed methane well in bride type without causing pollution
06/02/2010CN101718173A Petroleum multilateral well solid expandable tubular (SET) bifurcation structure and construction method
06/02/2010CN101718170A Performing six-grade branch well system tool
06/01/2010US7726406 Dissolvable downhole trigger device
06/01/2010CA2591859C Methods and compositions for well completion in steam breakthrough wells
06/01/2010CA2485810C System and method to control multiple tools through one control line
05/2010
05/27/2010WO2010059591A1 Packer
05/27/2010WO2010059536A2 Modifying expansion forces by adding compression
05/27/2010WO2010059060A1 Real time downhole intervention during wellbore stimulation operations
05/27/2010WO2010058033A1 Method and system for fixing an element in a borehole
05/27/2010US20100126732 Downhole decelerating device, system and method
05/27/2010US20100126725 Coiled tubing bottom hole assembly with packer and anchor assembly
05/27/2010US20100126715 Device or Actuating a Bottom Tool
05/27/2010US20100126711 Downhole modulator apparatus
05/27/2010US20100126710 Stroker Tool
05/27/2010CA2778426A1 Real time downhole intervention during wellbore stimulation operations
05/27/2010CA2743716A1 Method and system for fixing an element in a borehole
05/26/2010EP2188487A2 Downhole wet-mate connector debris exclusion system
05/26/2010CN201486496U Oil well pump anchor for coaxial bidirectional anchoring
05/26/2010CN201486495U Screw pump anchor
05/26/2010CN201486494U Expansion pipe hanging connecting device
05/26/2010CN201486493U Flexible claw mechanism
05/26/2010CN201486492U Drill pipe puller of raise borer
05/26/2010CN1711405B Downhole hydraulic control line connector
05/26/2010CN1708630B Well completion system and method and method for producing hydrocarbon
05/26/2010CN1703566B Cement through side pocket mandrel
05/25/2010US7721805 Method and apparatus to hydraulically bypass a well tool
05/25/2010US7721800 Flow control mechanism for a downhole tool
05/25/2010US7721799 Flow control packer (FCP) and aquifer storage and recovery (ASR) system
05/25/2010CA2527063C Running/retrieval tool
05/25/2010CA2389426C Apparatus and method for inserting and retrieving a tool string through well surface equipment
05/20/2010WO2010057003A2 Inserts with swellable elastomer seals for side pocket mandrels
05/20/2010WO2010056361A1 System and method for preventing slippage and rotation of components in a tubular housing
05/20/2010WO2010036542A3 Method and system for using wellbore instruments with a wired pipe string
05/20/2010US20100122821 Packer System With Reduced Friction During Actuation
05/20/2010US20100122819 Inserts with Swellable Elastomer Seals for Side Pocket Mandrels
05/13/2010US20100116508 Hydraulic Pump-Drive Downhole Fluids Pump With Linear Driver
05/13/2010US20100116487 Internal Release Connector and Method
05/13/2010US20100116486 Well assembly having a casing hanger supported by a load member actuated by a retractable member disposed in the wellhead
05/12/2010CN201460779U Reciprocating hydraulic tube-drawing machine
05/12/2010CN201460778U Expansion pipe type tail pipe hanger
05/12/2010CN201460777U Novel dragger for polymer flooding quality and pressure separating well
05/12/2010CN101705800A Anti-falling hanging device
05/12/2010CN101705799A Petroleum down-hole quickly-mounted and quickly-detached cable clamp
05/12/2010CN101131074B Hanger of minor-diameter pipe subsurface agent and gas pouring device
05/11/2010US7714741 Method and system for performing operations and for improving production in wells
05/11/2010CA2499725C One-step directional coring or drilling system
05/06/2010WO2010014860A3 Method of circulating while retrieving downhole tool in casing
05/06/2010WO2010002270A3 Trigger device for activating an action
05/06/2010US20100111467 Measuring apparatus, venturi and venturi insertion tool
05/06/2010US20100108387 Tractor with improved valve system
05/06/2010US20100108329 Downhole injector system for ct and wireline drilling
05/06/2010US20100108325 Method and device for securing a well
05/06/2010US20100108313 Coiled tubing conveyed combined inflow and outflow control devices
05/06/2010US20100108308 Sealing material to metal bonding compositions and methods for bonding a sealing material to a metal surface
05/04/2010US7708078 Apparatus and method for delivering a conductor downhole
05/04/2010US7708076 Method of using a drill in sand control liner
04/2010
04/29/2010WO2010046695A1 Downhole tool of high pressure operating cycle capability
04/29/2010WO2010045722A1 Multiple -block downhole anchors and anchor assemblies
04/29/2010US20100101806 Mandrel to be inserted into a liquid circulation pipe and associated positioning method
04/29/2010US20100101804 Resettable antiextrusion backup system and method
04/29/2010US20100101792 Cement head
04/29/2010US20100101779 Multiple-block downhole anchors and anchor assemblies
04/29/2010US20100101778 Expansion joint with communication medium bypass
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