| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 02/09/2005 | CN2677581Y High-precision directional drill |
| 02/09/2005 | CN1576511A Method for drilling a borehole and wet boring tool |
| 02/09/2005 | CN1576468A 击打力发生器 Striking force generator |
| 02/08/2005 | US6851490 Apparatus and process for drilling casing with environmentally contained mud annulus |
| 02/08/2005 | US6851489 Method and apparatus for drilling wells |
| 02/08/2005 | US6851488 Laser liner creation apparatus and method |
| 02/08/2005 | CA2441672C Method and system for accessing subterranean deposits from the surface |
| 02/08/2005 | CA2441671C Method and system for accessing subterranean deposits from the surface |
| 02/08/2005 | CA2358253C Top head drive and mast assembly for drill rigs |
| 02/08/2005 | CA2314061C Reservoir management system and method |
| 02/03/2005 | WO2005010318A1 Construction of a tubular at a downhole location |
| 02/03/2005 | US20050023039 Method for sinking a borehole in the ground and wet boring tool |
| 02/03/2005 | US20050023037 Orienter for drilling tool assembly |
| 02/02/2005 | CN2675841Y Drilling angle regulating system for down-hole drill |
| 02/02/2005 | CN1575372A System for lining a section of a wellbore |
| 02/01/2005 | US6848518 Steerable underreaming bottom hole assembly and method |
| 02/01/2005 | US6848515 Modular drilling rig substructure |
| 02/01/2005 | US6848506 Rotary driven retrieval tool for horizontal directional drilling operations |
| 02/01/2005 | US6848504 Apparatus and method to complete a multilateral junction |
| 01/27/2005 | WO2005008018A2 Method for heat drilling holes in ice and device for carrying out said method |
| 01/27/2005 | WO2004020775A3 Method and apparatus for removing cuttings |
| 01/27/2005 | DE10114429B4 Verwendung eines angetriebenen Vortriebskörpers, an dessen Spitze sich ein mit zwei gegeneinanderer beweglichen Schneiden versehenes Zerkleinerungswerkzeug befindet zum Herstellen von Schüttgutbohrungen Using a driven propulsion body, headed by a provided with two against einanderer mobile blade grinding tool is for producing bulk holes |
| 01/26/2005 | EP1499789A2 Nozzle for jet drilling and associated method |
| 01/26/2005 | CN2674064Y 遥控自动钻机 Remote Auto Rig |
| 01/26/2005 | CN2674063Y Gantry type engineering drilling machine |
| 01/26/2005 | CN2674060Y Pipe-line arrangement for out-hanging type power head |
| 01/26/2005 | CN1571878A Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 01/25/2005 | US6845826 Saver sub for a steering tool |
| 01/25/2005 | US6845822 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 01/20/2005 | WO2005005771A1 Self orienting lateral junction system |
| 01/20/2005 | WO2005005768A1 Tool for excavating an object |
| 01/20/2005 | WO2005005767A1 System and method for making a hole in an object |
| 01/20/2005 | WO2005005766A1 Device for transporting particles of a magnetic material and tool comprising such a device |
| 01/20/2005 | WO2005005765A1 Tool for excavating an object |
| 01/20/2005 | WO2004092633A3 Spoolable composite coiled tubing connector |
| 01/20/2005 | WO2004079151A3 Drilling with casing latch |
| 01/20/2005 | US20050011644 Formation pressure testing apparatus with flexible member and method of formation pressure testing |
| 01/20/2005 | US20050011643 Wear resistant tubular connection |
| 01/19/2005 | EP1498576A1 Drilling device for earth drill |
| 01/19/2005 | EP1497530A1 Method for increasing production from a wellbore |
| 01/19/2005 | CN2672274Y Heavy hammer tamping type earth quake drill machine |
| 01/18/2005 | US6843332 Three dimensional steerable system and method for steering bit to drill borehole |
| 01/18/2005 | US6843331 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications |
| 01/18/2005 | US6843314 Retrievable through-tubing whipstock apparatus having fluid-responsive pivotal anchoring members |
| 01/18/2005 | CA2239280C Formation data sensing with deployed remote sensors during well drilling |
| 01/18/2005 | CA2180661C Method and apparatus for plasma blasting |
| 01/13/2005 | WO2005003648A1 A method of constructing a geothermal heat exchanger |
| 01/13/2005 | WO2005003505A1 Coupling for dual member pipe |
| 01/13/2005 | WO2004079150A3 Full bore lined wellbores |
| 01/13/2005 | WO2004033841A3 Methods and apparatus for riserless drilling |
| 01/13/2005 | US20050006145 Control Method for use with a Steerable Drilling System |
| 01/13/2005 | US20050006105 Method and apparatus for through rotary sub-sea pile-driving |
| 01/13/2005 | US20050006100 Self orienting lateral junction system |
| 01/13/2005 | CA2532914A1 A method of constructing a geothermal heat exchanger |
| 01/13/2005 | CA2530590A1 Improvements in or relating to swirling fluid flows and jets |
| 01/12/2005 | EP1496297A2 Vessel for well intervention |
| 01/12/2005 | CN2670578Y Positive displacement drill for horizontal well |
| 01/12/2005 | CN2670576Y Single cylinder hydraulic horizontal drilling machine |
| 01/12/2005 | CN2670575Y Double-cylinder hydraulic horizontal drilling machines |
| 01/11/2005 | US6840337 Method and apparatus for removing cuttings |
| 01/11/2005 | US6840336 Drilling tool with non-rotating sleeve |
| 01/11/2005 | US6840322 Subsea well intervention vessel |
| 01/11/2005 | US6840320 Method and apparatus for forming an optimized window |
| 01/06/2005 | WO2005001232A2 Determination of thermal properties of a formation |
| 01/06/2005 | WO2004104360A3 Drill bit and drilling system with under -reamer- and stabilisation-section |
| 01/06/2005 | US20050002740 Guide device in an offshore drilling installation |
| 01/06/2005 | US20050000736 Easy hold power auger |
| 01/06/2005 | US20050000733 Systems and methods for performing mud pulse telemetry using a continuously variable transmission |
| 01/05/2005 | EP1492935A1 Method and device for coring and/or directional drilling |
| 01/05/2005 | DE202004016655U1 Rohrverbindung und Vorrichtung zur Herstellung einer Rohrverbindung Pipe joint and apparatus for manufacturing a pipe joint |
| 01/05/2005 | CN2668843Y Guider for branch well joining-in again |
| 01/05/2005 | CN2668822Y Side-drilling windowing whipstock |
| 01/05/2005 | CN2668821Y Self-positioning recoverable oblique device |
| 01/05/2005 | CN2668820Y Directive device for branch well |
| 01/05/2005 | CN1560419A Apparatus of drilling well for gas and oil branching well and its method |
| 01/04/2005 | US6837315 Rotary steerable drilling tool |
| 01/04/2005 | US6837314 Sub apparatus with exchangeable modules and associated method |
| 12/30/2004 | US20040262044 Systems and methods for directionally drilling a borehole using a continuously variable transmission |
| 12/30/2004 | US20040262043 Systems and methods for the drilling and completion of boreholes using a continuously variable transmission to control one or more system components |
| 12/30/2004 | US20040262019 Method and apparatus for vibratory kinetic energy generation and applications thereof |
| 12/30/2004 | US20040262013 Wired casing |
| 12/30/2004 | US20040262009 Horizontal spool tree wellhead system and method |
| 12/30/2004 | US20040262006 Method and apparatus for multilateral junction |
| 12/29/2004 | WO2004113668A1 Sonic heads and assemblies and uses thereof |
| 12/29/2004 | WO2004113667A1 Flexible drill string member |
| 12/29/2004 | WO2004113666A1 Split housing for rotary steerable tool |
| 12/29/2004 | WO2004113665A1 Modular housing for a rotary steerable tool |
| 12/29/2004 | WO2004113664A1 Inner and outer motor with eccentric stabilizer |
| 12/29/2004 | WO2004079149A3 Subsea well workover system and method |
| 12/29/2004 | WO2004072434A3 Methods and apparatus for wellbore construction and completion |
| 12/29/2004 | EP1491719A1 Carrier vehicle for a drilling or bolting machine |
| 12/29/2004 | EP1491716A2 Method for drilling a borehole and wet boring tool |
| 12/29/2004 | EP1491714A2 Multilateral well drilling and completion method and appratus |
| 12/29/2004 | EP1454029A4 Fluid drilling head |
| 12/29/2004 | CN2667135Y Light vehicular rotary disc type down-the-hole hammer water well drilling machine |
| 12/29/2004 | CN1558084A Strong force propulsion plant of continuous tube |
| 12/29/2004 | CN1558083A Multilayer winding device of continuous tube |
| 12/29/2004 | CA2756585A1 Flexible drill string member |
| 12/29/2004 | CA2528480A1 Sonic heads and assemblies and uses thereof |
| 12/28/2004 | CA2443311C Expandable radially reduced tubular member |