| Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712) |
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| 05/05/2011 | WO2010037137A3 Downhole device actuator and method |
| 05/05/2011 | US20110100647 Tubular Actuator, System and Method |
| 05/04/2011 | CN201818260U Coring tool assembly lifting device |
| 05/04/2011 | CN102041973A Small-hole hanger |
| 05/04/2011 | CN102041972A Method and system for dismounting press support |
| 04/28/2011 | WO2011049941A2 Downhole release joint with radially expandable members |
| 04/28/2011 | WO2011006173A3 Non-collapsing built in place adjustable swage |
| 04/28/2011 | WO2011005519A3 Downhole tool with roller screw assembly |
| 04/28/2011 | WO2010151905A3 High pressure/high temperature packer seal |
| 04/28/2011 | US20110094754 Wellbore treatment apparatus and method |
| 04/28/2011 | US20110094753 Downhole release joint with radially expandable members |
| 04/27/2011 | EP2314830A1 Tractor communications/control and select fire perforating switch |
| 04/27/2011 | CN201810253U Downhole oil-producing tool releaser |
| 04/27/2011 | CN201810241U Casing head installation device |
| 04/27/2011 | CN102031940A Method for allowing downhole tool to pass through water distributors back and forth and execution device |
| 04/26/2011 | US7931092 Packer element with recesses for downwell packing system and method of its use |
| 04/26/2011 | US7931091 Open-hole wellbore lining |
| 04/26/2011 | US7931085 Internal release connector and method |
| 04/26/2011 | CA2638635C Creep determination technique |
| 04/26/2011 | CA2594059C Wellbore surveying system and method |
| 04/26/2011 | CA2566414C Improved flexible cup for downhole devices |
| 04/26/2011 | CA2438559C Downhole latch |
| 04/21/2011 | WO2011046682A2 Ball catcher with retention capability |
| 04/21/2011 | WO2011005750A3 Fracturing system and method |
| 04/21/2011 | WO2010148316A3 Dual anchoring tubular back-off tool |
| 04/21/2011 | US20110088914 Method of Activating a Downhole Tool Assembly |
| 04/21/2011 | US20110088903 Instrumented disconnecting tubular joint |
| 04/21/2011 | US20110088893 Wellhead system having wicker sealing surface |
| 04/20/2011 | EP2126276B1 A valve |
| 04/20/2011 | EP1920133B1 Safety device for an oil well and associated safety installation |
| 04/20/2011 | CN201802332U Clamping nail setting device |
| 04/20/2011 | CN102027189A Wellbore anchor and isolation system |
| 04/19/2011 | US7926590 Method of liner drilling and cementing utilizing a concentric inner string |
| 04/19/2011 | CA2770428A1 Multi-zone fracturing completion |
| 04/19/2011 | CA2730695A1 Multi-zone fracturing completion |
| 04/19/2011 | CA2512833C Wellstring assembly |
| 04/19/2011 | CA2501691C Multi-cycle downhole apparatus |
| 04/14/2011 | WO2011044483A2 Downhole tool actuation devices and methods |
| 04/14/2011 | WO2011044074A2 Active integrated completion installation system and method |
| 04/14/2011 | US20110083901 Core drilling tools with external fluid pathways |
| 04/14/2011 | US20110083856 Sensor deployment and retrieval system using fluid drag force |
| 04/14/2011 | US20110083854 Casing hanger nesting indicator |
| 04/14/2011 | CA2717595A1 Fluid logic tool for use in a subterranean well |
| 04/13/2011 | EP2309095A1 Method and apparatus for releasably connecting a wireline to a downhole tool |
| 04/13/2011 | CN102016226A Internal tree cap and ITC running tool |
| 04/12/2011 | US7921926 Jointed spearhead assembly |
| 04/12/2011 | US7921924 System and method for controlling actuation of a well component |
| 04/12/2011 | CA2641397C Selectively activated float equipment |
| 04/12/2011 | CA2463969C Gel release device |
| 04/07/2011 | WO2011041305A2 Line retention arrangement and method |
| 04/07/2011 | WO2011038862A1 Equipment and methods for deploying line in a wellbore |
| 04/07/2011 | WO2010144580A3 Seat apparatus and method |
| 04/07/2011 | US20110079439 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 04/07/2011 | US20110079436 Core drilling tools with retractably lockable driven latch mechanisms |
| 04/07/2011 | US20110079435 Driven latch mechanism |
| 04/07/2011 | US20110079401 Equipment and Methods for Deploying Line in a Wellbore |
| 04/07/2011 | US20110079400 Active integrated completion installation system and method |
| 04/07/2011 | US20110079396 Method of Making a Flow Control Device That Reduces Flow of the Fluid When a Selected Property of the Fluid is in Selected Range |
| 04/07/2011 | US20110079381 Stage tool apparatus and method |
| 04/07/2011 | CA2775349A1 Equipment and methods for deploying line in a wellbore |
| 04/06/2011 | EP2304165A2 Apparatus and methods for wedge lock prevention |
| 04/06/2011 | EP2304159A2 Signal operated tools for milling, drilling, and/or fishing operations |
| 04/06/2011 | CN201786299U Positioning pressure release device for expansion tube |
| 04/06/2011 | CN102003168A Leaked rock salt cavity low pressure mining technique |
| 04/05/2011 | US7918280 Radial indexing communication tool and method for subsurface safety valve with communication component |
| 04/05/2011 | US7918273 Top drive casing system |
| 04/02/2011 | CA2702652A1 Apparatus and method for directionally disposing a flexible member in a pressurized conduit |
| 03/31/2011 | WO2011037995A2 Plug counter and method |
| 03/31/2011 | WO2011037974A2 Wireline cable for use with downhole tractor assemblies |
| 03/31/2011 | WO2011037591A1 Pipe conveyed extendable well logging tool with protector |
| 03/31/2011 | WO2011037588A1 Pipe conveyed extendable well logging tool |
| 03/31/2011 | WO2011037586A1 Compression assembly and method for actuating downhole packing elements |
| 03/31/2011 | WO2011037584A1 Anchor assembly and method for anchoring a downhole tool |
| 03/31/2011 | WO2011037582A1 Actuation assembly and method for actuating a downhole tool |
| 03/31/2011 | WO2011036175A1 Annulus access tool |
| 03/31/2011 | WO2011005694A3 Motion transfer from a sealed housing |
| 03/31/2011 | WO2010148301A3 Downhole tools and methods of setting in a wellbore |
| 03/31/2011 | WO2010147954A3 Weakpoint coupling of selectively adjustable load bearing capacity |
| 03/31/2011 | WO2010120453A3 Slickline conveyed tubular scraper system |
| 03/31/2011 | US20110073327 Two-component mortar composition and method of using same |
| 03/31/2011 | US20110073326 Anchor Assembly and Method for Anchoring a Downhole Tool |
| 03/31/2011 | US20110073325 Torque resistant coupling for oilwell toolstring |
| 03/31/2011 | US20110073321 Tubular actuator and method |
| 03/31/2011 | US20110073320 Tubular actuator and method |
| 03/31/2011 | US20110073300 Methods and apparatuses for inhibiting rotational misalignment of assemblies in expandable well tools |
| 03/31/2011 | CA2774775A1 Wireline cable for use with downhole tractor assemblies |
| 03/30/2011 | CN201778756U Movable assister bar |
| 03/30/2011 | CN201778707U Disfunctional safety release with plug-in butt joint |
| 03/30/2011 | CN201778706U Anti-drop torque anchor for oil pipe |
| 03/30/2011 | CN101999031A Jointed spearhead assembly |
| 03/30/2011 | CN101999030A Braking devices and methods for use in drilling operations |
| 03/29/2011 | US7913768 Release device |
| 03/29/2011 | CA2576536C Expandable fluted liner hanger and packer system |
| 03/29/2011 | CA2536900C Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 03/24/2011 | WO2011032928A1 A device and a system and a method of examining a tubular channel |
| 03/24/2011 | US20110067888 Plug counter and method |
| 03/24/2011 | US20110067865 Equipment for remote launching of cementing plugs |
| 03/22/2011 | US7909109 Anchoring device for a wellbore tool |
| 03/22/2011 | US7909108 System and method for servicing a wellbore |
| 03/22/2011 | US7909107 High capacity running tool and method of setting a packoff seal |