| 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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| 08/30/2006 | CN2811548Y Downhole positioning device for expansion pipe |
| 08/30/2006 | CN1272522C Chemical anchoring adhesive rope |
| 08/29/2006 | US7096963 Swing arm crane and method |
| 08/29/2006 | US7096956 Wellhead assembly with pressure actuated seal assembly and running tool |
| 08/29/2006 | US7096949 Wiper plug with packer |
| 08/29/2006 | US7096938 Slip energized by longitudinal shrinkage |
| 08/29/2006 | CA2207832C Rod removal system |
| 08/24/2006 | US20060185906 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 08/24/2006 | US20060185857 Expandable tubulars for use in a wellbore |
| 08/24/2006 | US20060185856 Multi-layer deformable composite construction for use in a subterranean well |
| 08/23/2006 | EP1693548A2 Method and apparatus for treating a well |
| 08/23/2006 | EP1693547A2 Method and apparatus for well testing |
| 08/23/2006 | EP1299615B1 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 08/23/2006 | CN1823208A Open hole tractor with tracks |
| 08/22/2006 | US7093664 One-time use composite tool formed of fibers and a biodegradable resin |
| 08/22/2006 | US7093656 Solid expandable hanger with compliant slip system |
| 08/22/2006 | CA2438359C Downhole packer |
| 08/22/2006 | CA2366002C Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 08/18/2006 | CA2536119A1 Micro-switches for downhole use |
| 08/17/2006 | WO2005116395A3 Hydraulically set concentric packer with multiple umbilical bypass through the piston |
| 08/17/2006 | WO2005021920A3 Downhole tubular splitter assembly and method |
| 08/17/2006 | US20060180318 Constant force actuator |
| 08/17/2006 | US20060180316 Assembly of downhole equipment in a wellbore |
| 08/17/2006 | US20060180303 Independent measuring and processing probe for preliminary studies on a well |
| 08/16/2006 | EP1689969A1 Downhole tool |
| 08/16/2006 | EP1689968A1 Downhole tool |
| 08/16/2006 | CN2806750Y Flexile anchorage device for oil well |
| 08/16/2006 | CN2806749Y Downhole wheel-type self-adapting pipe crawler for horizontal well |
| 08/15/2006 | US7090037 Device for anchoring a drill string in a borehole |
| 08/15/2006 | US7090025 Methods and apparatus for reforming and expanding tubulars in a wellbore |
| 08/15/2006 | US7090024 Tubing anchor |
| 08/15/2006 | US7090021 Apparatus for connecting tublars using a top drive |
| 08/15/2006 | US7090020 Multi-cycle dump valve |
| 08/15/2006 | US7090008 System to connect conduit sections in a subterranean well |
| 08/15/2006 | US7090005 Tubular expansion apparatus and method |
| 08/15/2006 | US7090004 Cement float |
| 08/14/2006 | CA2535940A1 Packers and methods of use |
| 08/10/2006 | US20060175055 Device for installation of a profile liner in a well |
| 08/10/2006 | DE19746511B4 Vorrichtung zum Prüfen von Rohrleitungen A device for testing pipelines |
| 08/09/2006 | EP1687506A1 A disconnect device |
| 08/08/2006 | US7086486 Flow control valve and method of controlling rotation in a downhole tool |
| 08/08/2006 | US7086481 Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling |
| 08/08/2006 | US7086480 Tubing anchor |
| 08/08/2006 | US7086479 Expanding well tools |
| 08/08/2006 | US7086478 Apparatus and methods for expanding tubulars in a wellbore |
| 08/08/2006 | US7086477 Tubing expansion tool |
| 08/08/2006 | US7086475 Method of inserting a tubular member into a wellbore |
| 08/08/2006 | US7086462 Wellbore anchor tool |
| 08/08/2006 | CA2367613C Dual diverter and orientation device for multilateral completions and method |
| 08/08/2006 | CA2251358C Wellbore tractor |
| 08/03/2006 | WO2006079154A1 Method and apparatus for sensor deployment |
| 08/03/2006 | US20060169460 Apparatus for radially expanding and plastically deforming a tubular member |
| 08/03/2006 | US20060169459 Method and Apparatus to Complete a Well Having Tubing Inserted Through a Valve |
| 08/02/2006 | CN2802066Y One-arm sidewall contact device of petroleum prospecting instrument |
| 08/02/2006 | CN2802064Y Automatic polish rod clip with wounded |
| 08/01/2006 | US7083209 Hydraulic overshot tool without a nozzle, and method of retrieving a cylinder |
| 08/01/2006 | US7082998 Systems and methods for placing a braided, tubular sleeve in a well bore |
| 08/01/2006 | US7082996 Method and apparatus to complete a well having tubing inserted through a valve |
| 08/01/2006 | US7082991 Slip spring with heel notch |
| 08/01/2006 | CA2346282C Hydraulic switch device |
| 08/01/2006 | CA2294010C Casing annulus remediation system |
| 07/27/2006 | US20060162938 Expanding a tubular element to different inner diameters |
| 07/27/2006 | US20060162937 Protective sleeve for threaded connections for expandable liner hanger |
| 07/27/2006 | US20060162925 Method and apparatus for positioning a sleeve down hole in a hydrocarbon producing well and pipelines |
| 07/27/2006 | US20060162921 Slip energized by longitudinal shrinkage |
| 07/27/2006 | CA2596245A1 Method and apparatus for expanding a tubular member |
| 07/26/2006 | EP1608839A4 Method and apparatus to complete a well having tubing inserted through a valve |
| 07/25/2006 | US7080701 Electrically sequenced tractor |
| 07/25/2006 | US7080700 Tractor with improved valve system |
| 07/25/2006 | CA2495364C Well tool anchor and method of releasing gripping elements |
| 07/25/2006 | CA2403293C Apparatus to actuate downhole tool |
| 07/20/2006 | WO2006076526A1 Gravel pack shut tube with control line retention and method for retaining control |
| 07/19/2006 | EP1680573A1 Expandable wellbore assembly |
| 07/19/2006 | EP1540128A4 Interposed joint sealing layer method of forming a wellbore casing |
| 07/19/2006 | CN2797628Y Corrosion-proof single direction joint tube for flow-rate testing regulating apparatus |
| 07/19/2006 | CN1804364A Drillable thin-walled hydraulic release device for liner and operation method thereof |
| 07/19/2006 | CN1265076C Sensor arranging device and method for measuring property parameters of underground stratum |
| 07/18/2006 | US7077214 Expansion set packer with bias assist |
| 07/18/2006 | US7077213 Expansion cone for radially expanding tubular members |
| 07/18/2006 | US7077212 Method of hydraulically actuating and mechanically activating a downhole mechanical apparatus |
| 07/18/2006 | US7077210 Expansion method |
| 07/18/2006 | US7077204 Whip retrieval method and apparatus |
| 07/18/2006 | CA2371420C Apparatus and method for controlling fluid flow in a wellbore |
| 07/18/2006 | CA2365310C Wellbore primary barrier and related systems |
| 07/18/2006 | CA2278101C Caged slip system |
| 07/18/2006 | CA2253574C Multi-lateral wellbore systems and methods for forming same |
| 07/13/2006 | WO2004089608A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 07/13/2006 | US20060153508 System and method for deploying an optical fiber in a well |
| 07/13/2006 | US20060151212 Traction control for downhole tractor |
| 07/13/2006 | US20060151182 Seal cup for a wellbore tool and method |
| 07/12/2006 | EP1019614B1 Casing filling and circulating apparatus |
| 07/11/2006 | US7073594 Wireless downhole well interval inflow and injection control |
| 07/11/2006 | US7073583 Method and apparatus for expanding tubing downhole |
| 07/11/2006 | CA2252728C Method and apparatus for remote control of multilateral wells |
| 07/06/2006 | WO2006046075A3 Improved plug |
| 07/05/2006 | EP1368552B1 Downhole tool |
| 07/05/2006 | CN2793307Y Wide-diameter detachable apparatus of petrolem tool under well |
| 07/05/2006 | CN2793306Y Recovered anchored tool of oblique apparatus for branched well |
| 07/05/2006 | CN2793305Y Fishing and delivering tool of guide cylinder for branched well |
| 07/05/2006 | CN2793304Y Guide cylinder recovering tool of branched well |