| 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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| 10/24/2007 | CN200964809Y Blowout prevention device mounting device |
| 10/23/2007 | US7284616 Selectively retrievable wear bushing for subsea or surface applications |
| 10/23/2007 | US7284607 System and technique for orienting and positioning a lateral string in a multilateral system |
| 10/23/2007 | US7284603 Expandable completion system and method |
| 10/23/2007 | CA2450391C Logging while tripping with a modified tubular |
| 10/18/2007 | US20070240878 Apparatus for Radial Expansion of a Tubular |
| 10/18/2007 | US20070240876 Non-metallic whipstock |
| 10/17/2007 | EP1592863B1 Improved downhole apparatus |
| 10/17/2007 | CN200961457Y Hydraulic liner-releasing hanger |
| 10/17/2007 | CN200961445Y Oil-water well downhole oil layer drilling tool pipe string combination |
| 10/17/2007 | CN100343482C System for performing operations and for improving production in wells |
| 10/16/2007 | US7283061 Method and system for performing operations and for improving production in wells |
| 10/16/2007 | US7283060 Control apparatus for automated downhole tools |
| 10/16/2007 | US7281589 Ball dropping tool method and apparatus |
| 10/16/2007 | US7281588 Tubular injector apparatus and method of use |
| 10/16/2007 | US7281584 Multi-cycle downhill apparatus |
| 10/16/2007 | US7281578 Apparatus and methods for positioning in a borehole |
| 10/16/2007 | CA2444657C Apparatus and methods for conveying instrumentation within a borehole using continuous sucker rod |
| 10/11/2007 | WO2007113753A2 Well servicing methods and systems |
| 10/11/2007 | US20070235199 Methods and apparatus for actuating a downhole tool |
| 10/11/2007 | CA2647546A1 Well servicing methods and systems |
| 10/10/2007 | CN200958378Y Prefabricated window well completion tool for branched well |
| 10/10/2007 | CN100342114C Single arm clamp piston of petroleum exploration device |
| 10/09/2007 | US7278492 Expandable liner hanger system and method |
| 10/09/2007 | US7278478 Tubing string anchoring tool |
| 10/09/2007 | CA2240140C Wye block having a rotary guide incorporated therein |
| 10/04/2007 | WO2007112381A2 High performance expandable tubular system |
| 10/04/2007 | WO2007112211A1 Frac system without intervention |
| 10/04/2007 | CA2541748A1 A casing transition nipple and method of casing a well to facilitate well completion, re-completion and workover |
| 10/02/2007 | US7275601 Radial expansion of tubular members |
| 10/02/2007 | US7275600 Apparatus and method for expanding tubular members |
| 10/02/2007 | US7275593 Gripper assembly for downhole tools |
| 09/30/2007 | CA2582875A1 System and method for unsticking a tool stuck in a wellbore |
| 09/27/2007 | WO2007107773A2 Improved packer |
| 09/27/2007 | US20070221380 Surface controlled subsurface lateral branch safety valve |
| 09/27/2007 | US20070221374 High Performance Expandable Tubular System |
| 09/27/2007 | US20070221372 Packer |
| 09/26/2007 | CN200952370Y Large path sandproof hanger |
| 09/26/2007 | CN200952369Y Cartridge container hanger delivery tool assembly |
| 09/25/2007 | US7273110 Sealing element for pipes and methods for using |
| 09/25/2007 | US7273109 Puller-thruster downhole tool |
| 09/25/2007 | US7273108 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 09/25/2007 | US7273096 Gel release device |
| 09/25/2007 | CA2492354C Flow control valve |
| 09/25/2007 | CA2442984C Kick over tool for side pocket mandrel |
| 09/25/2007 | CA2394950C Three dimensional steerable system |
| 09/25/2007 | CA2394867C Method for magnetizing wellbore tubular |
| 09/25/2007 | CA2229120C Methods of completing a subterranean well and associated apparatus |
| 09/20/2007 | WO2007072171B1 Method and system for tool orientation and positioning and particulate material protection within a well casing for producing hydrocarbon bearing formations including gas hydrates |
| 09/19/2007 | CN200949434Y Slip type hanger |
| 09/19/2007 | CN200949433Y Send-takeout tool for oil pipe hanger |
| 09/19/2007 | CN200949432Y Clip type mandrel sleeve hanger |
| 09/18/2007 | US7270191 Flapper opening mechanism |
| 09/18/2007 | US7270188 Radial expansion of tubular members |
| 09/18/2007 | CA2569713C Retrievable bridge plug and retrieving tool |
| 09/18/2007 | CA2503972C Logging plug with high integrity internal seal |
| 09/18/2007 | CA2393504C Flow control in a wellbore |
| 09/13/2007 | WO2007103686A1 Extended reach anchor |
| 09/13/2007 | WO2007103656A1 Millable pre-installed plug |
| 09/13/2007 | US20070209806 Expandable ramp gripper |
| 09/13/2007 | CA2581438A1 Expandable ramp gripper |
| 09/12/2007 | EP1830971A2 Coated tools for use in oil well pipes |
| 09/12/2007 | EP1346128B1 Adjustable stabiliser for directional drilling |
| 09/12/2007 | CN200946474Y Oil pipe anchor with duplex protection effect |
| 09/12/2007 | CN200946473Y Expanding suspension supporting and placing device |
| 09/12/2007 | CN200946472Y Clip type core shaft oil pipe hanger |
| 09/12/2007 | CN101035963A Method of manufacturing a tubular member |
| 09/11/2007 | CA2419687C Method and system for avoiding damage to behind-casing structures |
| 09/06/2007 | US20070204993 Method for drilling and casing a wellbore with a pump down cement float |
| 09/06/2007 | US20070204987 Anchoring device for casing procedures in wellbores |
| 09/06/2007 | CA2550883A1 Anchoring device for casing procedures in wellbores |
| 09/05/2007 | EP1828537A2 Method and apparatus to hydraulically bypass a well tool |
| 09/05/2007 | EP1402147B1 Multi-cycle downhole apparatus |
| 09/04/2007 | US7264067 Method of drilling and completing multiple wellbores inside a single caisson |
| 09/04/2007 | US7264059 Method and device for pressure controlled sequential operation |
| 09/04/2007 | US7264057 Subsea intervention |
| 09/04/2007 | CA2409062C Milling of casing using coiled tubing |
| 08/30/2007 | WO2007079047A3 Deformable release device for use with downhole tools |
| 08/30/2007 | US20070199721 Well planning system and method |
| 08/30/2007 | US20070199719 Apparatus and methods for radially expanding a tubular member |
| 08/29/2007 | EP1825103A1 Sonde deployment |
| 08/29/2007 | CN200940458Y Feeding fishing tool for branch well re-insert guide device |
| 08/29/2007 | CN200940457Y Punching hole releasing device |
| 08/28/2007 | CA2491293C Method and apparatus for remote control of multilateral wells |
| 08/23/2007 | WO2007095221A1 Method and system for controlling a downhole flow control device |
| 08/22/2007 | CN2937454Y Submerged pump locking device and hydraulic removing tool |
| 08/22/2007 | CN2937453Y Lifting mounting short joint sand-proof pipe |
| 08/22/2007 | CN101021148A Oil production subsurface screw pump anchoring device |
| 08/21/2007 | US7258171 Internal riser rotating control head |
| 08/21/2007 | CA2462012C System and method for installing a liner in a borehole |
| 08/21/2007 | CA2429396C Bi-directional traction apparatus |
| 08/21/2007 | CA2429017C Surface-actuated release tool for submersible pump assemblies and releasing method |
| 08/16/2007 | WO2007091218A2 Self-anchoring device with force amplification |
| 08/16/2007 | WO2007091055A1 Selectively activated float equipment |
| 08/16/2007 | US20070187115 Downhole actuating apparatus and method |
| 08/16/2007 | US20070187114 Method and apparatus to complete a well having tubing inserted through a valve |
| 08/16/2007 | US20070187113 Method and apparatus for expanding tubulars in a wellbore |
| 08/15/2007 | EP1581719B1 Actuation devices, tools and apparatus |
| 08/15/2007 | CN2934555Y Oil pipe tension anchoring compensator |
| 08/15/2007 | CN101016829A Backpressure valve hydraulic taking/providing device |