| 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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| 01/12/2010 | CA2582751C Secondary lock for a downhole tool |
| 01/12/2010 | CA2407983C Radial expansion of tubular members |
| 01/07/2010 | WO2010002270A2 Trigger device for activating an action |
| 01/07/2010 | WO2009140084A3 Swellable packer with variable quantity feed-throughs for lines |
| 01/07/2010 | US20100000730 Acoustically Measuring Annulus Probe Depth |
| 01/06/2010 | EP2140100A2 Drilling system with a barrel drilling head driven by a downhole tractor |
| 01/06/2010 | EP2140099A2 Anchor tool |
| 01/06/2010 | EP2140098A1 Running tool for expandable liner hanger and associated methods |
| 01/06/2010 | CN101619648A Expanding hydraulic anchor |
| 01/05/2010 | US7640993 Method of deploying and powering an electrically driven in a well |
| 01/05/2010 | US7640991 Downhole tool actuation apparatus and method |
| 01/05/2010 | US7640984 Method for drilling and casing a wellbore with a pump down cement float |
| 01/05/2010 | US7640976 Method and apparatus for downhole tubular expansion |
| 01/05/2010 | CA2429193C Full bore automatic gun release module |
| 01/05/2010 | CA2259638C Apparatus and method for installing a pipe in a wellbore |
| 12/31/2009 | US20090321174 Method and apparatus for deploying a plurality of seismic devices into a borehole and method thereof |
| 12/31/2009 | US20090321074 Mechanically modified filter cake |
| 12/31/2009 | US20090321068 Plug member and mounting and dismounting device therefor |
| 12/31/2009 | US20090321067 Releasing slips for oil well tool |
| 12/30/2009 | WO2009157918A1 Securement of lines to downhole well tools |
| 12/30/2009 | WO2009120759A3 Wellbore anchor and isolation system |
| 12/30/2009 | WO2009108742A3 Apparatus and methods for setting one or more packers in a well bore |
| 12/30/2009 | CN201372751Y Wellhead packing loader for rod-pumped well |
| 12/30/2009 | CN101614117A Expansion tube type liner hanger |
| 12/29/2009 | USRE41059 Expandable wellbore junction |
| 12/25/2009 | CA2669634A1 Method and apparatus for deploying a plurality of seismic devices into a borehole and method thereof |
| 12/24/2009 | US20090314497 Thermally expansive fluid actuator devices for downhole tools and methods of actuating downhole tools using same |
| 12/24/2009 | US20090314492 Protection Sleeve |
| 12/24/2009 | US20090314485 Safety device for an oil well and associated safety installation |
| 12/23/2009 | WO2009155249A2 Extrusion-resistant nose seal |
| 12/23/2009 | WO2009155243A2 Downhole shut off assembly for artificially lifted wells |
| 12/23/2009 | WO2009133438A3 Swellable compositions for borehole applications |
| 12/23/2009 | WO2009129059A3 Zero-relaxation packer setting lock system |
| 12/23/2009 | WO2009120578A3 Telescoping wiper plug |
| 12/23/2009 | CN201367876Y Tool for pushing in and taking out VR plug |
| 12/23/2009 | CN201367875Y Hydraulic equipment mounting tool |
| 12/23/2009 | CN201367870Y Drilling tool release anti-bending device |
| 12/23/2009 | CN100572742C Hydraulic expansion type screen pipe hanger |
| 12/23/2009 | CA2727027A1 Downhole shut off assembly for artificially lifted wells |
| 12/22/2009 | CA2575062C Method and apparatus for assembling stackable gun system inside a well bore |
| 12/17/2009 | WO2009132125A3 Braking devices and methods for use in drilling operations |
| 12/17/2009 | WO2009126451A3 Sealing devices having a metal foam material and methods of manufacturing and using same |
| 12/17/2009 | US20090308617 Wellbore instrument module having magnetic clamp for use in cased wellbores |
| 12/16/2009 | EP2132406A1 Ball seat assembly and method of controlling fluid flow through a hollow body |
| 12/16/2009 | CN201363113Y Installing tool for petroleum machinery |
| 12/16/2009 | CN100570123C Oil pipe column dropping prevention anchor |
| 12/15/2009 | US7631699 System and method for pressure isolation for hydraulically actuated tools |
| 12/15/2009 | US7631697 Oilfield apparatus comprising swellable elastomers having nanosensors therein and methods of using same in oilfield application |
| 12/10/2009 | WO2009149475A1 System and method for shifting a tool in a well |
| 12/10/2009 | WO2009149038A2 Systems and methods for providing wireless power transmissions and tuning a transmission frequency |
| 12/10/2009 | WO2009148921A1 Mechanism for providing controllable angular orientation while transmitting torsional load |
| 12/10/2009 | WO2009148322A1 Rock drilling device |
| 12/10/2009 | WO2009147072A2 Drill bit and method for inserting, expanding, collapsing, and retrieving drill bit |
| 12/10/2009 | US20090301732 Downhole Valve Actuation Methods and Apparatus |
| 12/10/2009 | US20090301730 Apparatus and methods for inflow control |
| 12/10/2009 | US20090301705 Universal Pump Holddown System |
| 12/10/2009 | CA2739664A1 Drill bit and method for inserting, expanding, collapsing, and retrieving drill bit |
| 12/09/2009 | EP2129864A1 Wireline tractor device |
| 12/09/2009 | CN201358742Y Flange rotary thread screwing device |
| 12/09/2009 | CN101598006A Hydraulic expansion type tail pipe hanger |
| 12/09/2009 | CA2842412A1 Universal pump holddown system |
| 12/09/2009 | CA2634508A1 Universal pump holddown system |
| 12/08/2009 | US7628213 Multi-cycle downhole tool with hydraulic damping |
| 12/08/2009 | US7628211 Method of connecting control lines to well bore equipment for controlling a well on a batch basis |
| 12/08/2009 | CA2527938C Tieback positioning and placement tool |
| 12/08/2009 | CA2423541C Downhole gripping tool and method |
| 12/04/2009 | CA2776415A1 Interface for deploying wireline tools with non-electric string |
| 12/03/2009 | WO2009117478A3 Torque-provider |
| 12/03/2009 | WO2009114371A3 Pressure compensator for hydrostatically-actuated packers |
| 12/03/2009 | US20090294137 Wellbore packer |
| 12/03/2009 | US20090294135 Retrievable Surface Controlled Subsurface Safety Valve |
| 12/03/2009 | US20090294134 Capillary hanger arrangement for deploying control line in existing wellhead |
| 12/03/2009 | US20090294120 Actively energized dynamic seal system |
| 12/03/2009 | US20090294119 Large bore packer |
| 12/03/2009 | US20090294118 Method and apparatus for use in a wellbore |
| 12/02/2009 | EP2126277A1 A device for a kickover tool |
| 12/02/2009 | EP2126276A1 A valve |
| 12/02/2009 | CN201354631Y Mechanical throwing-in and pulling gas well underground releasing testing tool |
| 12/02/2009 | CN201354613Y Self-locking type screw pump oil tube anchoring device |
| 12/02/2009 | CN201354612Y Screw retention device of drive shaft of top drive |
| 12/02/2009 | CN201354611Y Anti-rotation tubing anchor |
| 12/02/2009 | CN100564797C System for accommodating insert tool |
| 12/01/2009 | US7624808 Expandable ramp gripper |
| 12/01/2009 | US7624807 Deep set safety valve |
| 12/01/2009 | US7624797 Downhole tool operated by shape memory material |
| 12/01/2009 | CA2603202C Universal tubing hanger suspension assembly and well completion system and method of installing same |
| 12/01/2009 | CA2480070C Method and application for open hole gravel packing |
| 11/30/2009 | CA2667643A1 Borehole measurements using a fast and high energy resolution gamma ray detector assembly |
| 11/26/2009 | WO2009143474A2 Circulation system for retrieval of bottom hole assembly during casing while drilling operations |
| 11/26/2009 | WO2009143469A2 Monitoring flow rates while retrieving bottom hole assembly during casing while drilling operations |
| 11/26/2009 | WO2009143396A2 Incremental u-tube process to retrieve of bottom hole assembly during casing while drilling operations |
| 11/26/2009 | WO2009143394A1 Retrieval tool with slips for retrieving bottom hole assembly during casing while drilling operations |
| 11/26/2009 | WO2009143393A2 Controlling backflow pressure during retrieval of bottom hole assembly |
| 11/26/2009 | WO2009143300A2 System and method for providing a downhole mechanical energy absorber |
| 11/26/2009 | WO2009142957A1 System to perforate a cemented liner having lines or tools outside the liner |
| 11/26/2009 | WO2009142509A1 Pipe string landing device and a bore hole cementing method |
| 11/26/2009 | US20090288841 Circulation System for Retrieval of Bottom Hole Assembly During Casing While Drilling Operations |
| 11/26/2009 | US20090288840 Retrieval of Bottom Hole Assembly During Casing While Drilling Operations |
| 11/26/2009 | US20090288839 Controlling Backflow Pressure During Retrieval of Bottom Hole Assembly |
| 11/26/2009 | US20090288821 Monitoring Flow Rates While Retrieving Bottom Hole Assembly During Casing While Drilling Operations |