Patents for E21B 41 - Equipment or details not covered by groups (7,984)
02/2002
02/07/2002WO2002010553A1 Vibration based power generator
02/07/2002WO2001051761A8 Steerable modular drilling assembly
02/07/2002US20020014333 Apparatus for establishing branch wells form a parent well
02/07/2002US20020014332 Apparatus for establishing branch wells from a parent well
02/05/2002US6343656 System and method for optimizing production from a rod-pumping system
02/05/2002US6343655 Method of setting up a production installation
01/2002
01/31/2002WO2002009130A1 Arrangement and method for installing a subsea transformer
01/31/2002US20020012837 Annular pack
01/31/2002US20020011357 Fluid drilling system with drill string and retro jets
01/31/2002US20020011339 Through-tubing multilateral system
01/31/2002US20020011335 Fuel cell for downhole and subsea power systems
01/29/2002US6341565 Pipe racking system track cover
01/29/2002CA2156982C Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods
01/24/2002US20020007968 Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings
01/23/2002EP1174585A2 Apparatus and method for performing downhole measurements
01/23/2002EP1174582A2 Drilling apparatus with motor-driven pump steering control
01/23/2002CN2473331Y Wheel type tractor hoist
01/23/2002CN1332878A Apparatus and method of well management
01/17/2002WO2002004785A1 Well management system
01/16/2002EP1171250A1 Portable torque tester for downhole motors
01/15/2002CA2244451C Multiple string completion apparatus and method
01/10/2002WO2002002908A1 Apparatus and method for downhole fluid separation
01/10/2002WO2002002900A2 Apparatus and method to complete a multilateral junction
01/08/2002US6336507 Deformed multiple well template and process of use
01/08/2002US6336421 Floating spar for supporting production risers
01/03/2002US20020000320 Disconnect tool
01/03/2002US20020000319 Apparatus and method to complete a multilateral junction
01/03/2002US20020000316 Method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system
01/02/2002EP0839257B1 Lightweight intervention system
01/01/2002US6334485 Deviated borehole drilling assembly
12/2001
12/27/2001WO2001098632A1 Inductively coupled method and apparatus of communicating with wellbore equipment
12/27/2001US20010054969 Apparatus and method for downhole well equipment and process management, identification, and actuation
12/26/2001CA2350371A1 Method for determining preferred drill bit design parameters and drilling parameters using a trained artificial neural network, and methods for training the artificial neural network
12/25/2001US6333700 Apparatus and method for downhole well equipment and process management, identification, and actuation
12/25/2001US6332498 Deviated borehole drilling assembly
12/20/2001WO2001083940A8 Electrical well heating system and method
12/20/2001US20010054148 Field programmable smart card terminal and token device
12/18/2001US6330915 Protection of downwell pumps from sand entrained in pumped fluids
12/13/2001WO2001094746A1 Wellbore liner system
12/13/2001WO2001094745A1 Downhole window finder and method of using the same
12/13/2001WO2001040624A3 Production valve
12/13/2001US20010050170 Method and apparatus for downhole production zone
12/12/2001CN2464933Y Repropelling guide for sub-well pipe
12/11/2001US6328103 Methods and apparatus for downhole completion cleanup
12/06/2001WO2001092683A1 Subsea flowline jumper handling apparatus
12/06/2001WO2001092680A1 Use of helically wound tubular structure in the downhole environment
12/06/2001WO2000001915A3 Control system for the workover of oil wells
12/06/2001US20010049049 Annular pack
12/06/2001US20010047871 Use of helically wound tubular structure in the downhole environment
12/06/2001EP1144794A3 Control system for the workover of oil wells
12/06/2001CA2408514A1 Use of helically wound tubular structure in the downhole environment
12/05/2001EP1159510A2 Wellbore primary barrier and related systems
12/05/2001EP1159506A1 Steerable modular drilling assembly
12/05/2001CN1325478A Wellbore system including a conduit an an expandable device
12/04/2001US6326335 Mixture of gelatin, weighting agent and chelate compound
12/04/2001US6325164 Device and method for creating bore-hole branches
12/04/2001US6325158 Method and device for mounting of a seabed installation
12/04/2001US6325146 Methods of downhole testing subterranean formations and associated apparatus therefor
11/2001
11/29/2001WO2001091206A2 Fuel cell for downhole power systems
11/29/2001WO2001090533A1 Sealed lateral wellbore junction
11/29/2001WO2001090528A1 Method for controlled drilling and completing of wells
11/29/2001WO2001073423A8 Apparatus and method for downhole well equipment and process management, identification, and actuation
11/29/2001US20010045546 Preventin corrosion in pipelines by draining pipeline of all residual compounds, blowing through with nitrogen and rinsing with a corrosion inhibitor
11/29/2001US20010045284 Apparatus and methods for expanding tubulars in a wellbore
11/29/2001US20010045280 Field development system and associated methods
11/29/2001CA2409113A1 Fuel cell for downhole power systems
11/28/2001EP1158139A2 Pyrolytic oil-productivity index method for predicting reservoir rock and oil characteristics
11/28/2001EP1158137A2 Method and apparatus for establishing branch wells at a node of a parent well
11/27/2001US6322693 Waste processing system and related methods
11/27/2001US6322489 Restoring high moisture environments; recover drill cuttings, separate drill cutting from drill fluid, mix cutings, position cuttings in high moisture environments
11/27/2001US6321860 Cuttings injection system and method
11/27/2001US6321845 Apparatus for device using actuator having expandable contractable element
11/27/2001US6321842 Flow control in a wellbore
11/22/2001WO2001089014A1 Fuel cell for downhole and subsea power systems
11/22/2001WO2001088336A1 Well reference apparatus and method
11/22/2001WO2001088320A1 Method and apparatus for hydrocarbon subterranean recovery
11/22/2001WO2000056478A9 Portable torque tester for downhole motors
11/22/2001US20010044566 Slurry of municipal sewage wastes is injected into underground formation at pressure sufficient to create and maintain fractures within, allowing degradation with potassium present; pollution control
11/22/2001US20010042643 Steerable modular drilling assembly
11/22/2001US20010042642 Iterative drilling simulation process for enhanced economic decision making
11/22/2001US20010042621 Method and apparatus for multilateral well entry
11/22/2001CA2415278A1 Method and apparatus for hydrocarbon subterranean recovery
11/20/2001US6318457 Multilateral well and electrical transmission system
11/15/2001WO2001086115A2 A method for treating a hydrocarbon containing formation
11/15/2001WO2001086111A1 Apparatus and methods for forming a lateral wellbore
11/15/2001US20010040379 Vibration based downhole power generator
11/15/2001US20010040054 Apparatus and methods for forming a lateral wellbore
11/15/2001US20010040032 Surface pump assembly
11/15/2001US20010040030 Downhole activation system
11/14/2001EP1153194A1 Automated bore planning method and apparatus for horizontal directional drilling
11/13/2001US6315054 Assembly and method for locating lateral wellbores drilled from a main wellbore casing and for guiding and positioning re-entry and completion device in relation to these lateral wellbores
11/13/2001US6315044 Pre-milled window for drill casing
11/08/2001WO2001083945A1 A method for treating a hydrocarbon containing formation
11/08/2001WO2001083940A1 Electrical well heating system and method
11/08/2001US20010037902 Force-balanced roller-cone bits, systems, drilling methods, and design methods
11/06/2001US6311776 Dual diverter and orientation device for multilateral completions and method
11/01/2001WO2001081722A1 A method for treating a hydrocarbon-containing formation
11/01/2001WO2001081721A1 A method for treating a hydrocarbon containing formation
11/01/2001WO2001081720A1 In situ recovery of hydrocarbons from a kerogen-containing formation
11/01/2001WO2001081717A2 Method for treating a hydrocarbon-containing formation
1 ... 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 ... 80