| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 03/14/2007 | CN1930920A Extracting and processing hydrocarbon-bearing formations |
| 03/14/2007 | CN1930367A Method and system for lining multilateral wells |
| 03/14/2007 | CN1930362A Single pass drilling apparatus, use a one-piece drill bit, method and rock bolt for single pass rock bolting |
| 03/14/2007 | CN1930361A A method and device for establishing an underground well |
| 03/14/2007 | CN1304718C Horizontal direction boring machine and underground boring system |
| 03/13/2007 | US7189033 Apparatus and methods for thrust sensing valves |
| 03/13/2007 | US7188690 Drilling device and method for producing undercut holes |
| 03/13/2007 | US7188688 Down-hole tool filter and method for protecting such tools from fluid entrained debris |
| 03/13/2007 | US7188687 Downhole filter |
| 03/13/2007 | US7188685 Hybrid rotary steerable system |
| 03/13/2007 | US7188684 Locking pin assembly for locking dog housing |
| 03/13/2007 | US7188682 Multi-stage diffuser nozzle |
| 03/13/2007 | US7188677 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production |
| 03/13/2007 | US7188672 Well string assembly |
| 03/13/2007 | CA2295466C Lateral well tie-back method and apparatus |
| 03/08/2007 | WO2007026052A1 Adaptive user interface for rock drilling rig |
| 03/08/2007 | WO2007026051A1 User interface for rock drilling rig |
| 03/08/2007 | WO2006101606B1 Method for running tubulars in wellbores |
| 03/08/2007 | WO2005108742A3 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 03/08/2007 | US20070053749 Pipe assembly and a method for installation in a borehole |
| 03/08/2007 | US20070051538 Method for drilling with casing |
| 03/08/2007 | CA2619066A1 Adaptive user interface for rock drilling rig |
| 03/07/2007 | CN2876182Y Bottom expanding equipment |
| 03/07/2007 | CN1926304A Downhole drilling of a lateral hole |
| 03/07/2007 | CN1924282A Assembly and disassembly of gas extraction, drainage and discharge driller and displacement auxiliary device thereof |
| 03/07/2007 | CN1923374A New pattern rolling ball rotation impulse jet nozzle |
| 03/06/2007 | US7186182 Drive line for down hole mud motor |
| 03/06/2007 | US7186167 Suspended abrasive waterjet hole drilling system and method |
| 03/06/2007 | US7185718 Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings |
| 03/06/2007 | US7185716 Electrically sequenced tractor |
| 03/01/2007 | WO2007024779A1 System for tracking and maintaining an on-grade horizontal borehole |
| 03/01/2007 | WO2007024263A2 Portable electrocrushing drill |
| 03/01/2007 | WO2007022925A1 Method and device for repairing underground old pipelines |
| 03/01/2007 | WO2007002010A3 Method and apparatus for conducting earth borehole operations using coiled casing |
| 03/01/2007 | US20070048093 Subsea well communications apparatus and method using variable tension large offset risers |
| 03/01/2007 | US20070045007 Connection design and sonde housing assembly for a directional drill |
| 03/01/2007 | US20070044954 Downhole motor locking assembly and method |
| 03/01/2007 | CA2844571A1 Portable electrocrushing drill |
| 03/01/2007 | CA2661026A1 Portable electrocrushing drill |
| 02/28/2007 | EP1756391A2 Modular drill system requiring limited field assembly and limited equipment support and method of use |
| 02/28/2007 | EP1756390A2 System for directional boring including a drilling head with overrunning clutch and method of boring |
| 02/28/2007 | CN2874004Y Water power pulse drilling tool |
| 02/28/2007 | CN2874003Y Slope guide device |
| 02/28/2007 | CN2874002Y Flow path non-through remote control variable diameter stabilizer |
| 02/27/2007 | US7182156 System for overburden drilling |
| 02/27/2007 | US7182154 Directional borehole drilling system and method |
| 02/27/2007 | US7182153 Methods of casing drilling |
| 02/27/2007 | US7182152 Sampling isolator |
| 02/27/2007 | US7182151 Apparatus and method for horizontal drilling |
| 02/27/2007 | CA2356194C Procedures and equipment for profiling and jointing of pipes |
| 02/22/2007 | WO2007021978A1 Latchable reaming bit |
| 02/22/2007 | WO2007021337A1 Vertical annular separation and pumping system with outer annulus liquid discharge arrangement |
| 02/22/2007 | WO2007021335A2 Vertical annular separation and pumping system with integrated pump shroud and baffle |
| 02/22/2007 | US20070039760 Drill bit and system for drilling a borehole |
| 02/22/2007 | US20070039757 Tension/collar/reamer assemblies and methods |
| 02/21/2007 | EP1399641B1 Pipe centralizer and method of attachment |
| 02/21/2007 | EP1354118B1 Backreamer |
| 02/21/2007 | CN2871814Y Release-adjusting limiting mechanism of impactor |
| 02/21/2007 | CN2871789Y Integrated oil-well snubbing repairing equipment |
| 02/21/2007 | CN2871788Y Movable core driller |
| 02/21/2007 | CN1916354A Recovery type whipstock set |
| 02/20/2007 | US7178626 Method of seismic evaluation of subterranean strata |
| 02/20/2007 | US7178611 System and method for directional drilling utilizing clutch assembly |
| 02/20/2007 | US7178609 Window mill and drill bit |
| 02/20/2007 | US7178601 Methods of and apparatus for casing a borehole |
| 02/20/2007 | US7178598 Device for a hydraulic cutting tool |
| 02/20/2007 | US7178589 Thru tubing tool and method |
| 02/20/2007 | CA2533843C Method of distinguishing between installing different sucker rods |
| 02/20/2007 | CA2533832C Method of distinguishing the raising and lowering of tubing and sucker rods |
| 02/15/2007 | WO2005112574A3 Flying lead connector and method for making subsea connections |
| 02/15/2007 | WO2005042906A3 Subsea completion system, and methods of using same |
| 02/15/2007 | US20070034409 Method and apparatus for a downhole excavation in a wellbore |
| 02/15/2007 | US20070034408 Method of creating a borehole in an earth formation |
| 02/15/2007 | US20070034384 Whipstock liner |
| 02/14/2007 | EP1752608A2 Portable drilling mast structure, rig and method for erecting |
| 02/14/2007 | EP1751393A1 Telescopic feed beam for rock drill |
| 02/14/2007 | EP1751390A2 Apparatus and method for modified horizontal directional drilling assembly |
| 02/14/2007 | CN2869348Y Diesel engine and coupler sledge device |
| 02/14/2007 | CN2869300Y Packer for horizontal well side drilling and horizontal well operation |
| 02/14/2007 | CN2869282Y Drilling land casing wellhead centralising device |
| 02/14/2007 | CN1912343A Earth drilling machine |
| 02/14/2007 | CN1300444C Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 02/14/2007 | CN1300440C Completion device for branch well with pre-windows |
| 02/14/2007 | CN1300439C Method and apparatus for determining drilling paths to directional targets |
| 02/13/2007 | US7174975 Control systems and methods for active controlled bottomhole pressure systems |
| 02/13/2007 | US7174974 Electrically sequenced tractor |
| 02/13/2007 | US7174829 Adjustable piston pump |
| 02/13/2007 | CA2401813C Combined casing expansion/ casing while drilling method and apparatus |
| 02/13/2007 | CA2306736C Downhole packer system |
| 02/08/2007 | WO2007014410A1 Base for a drilling device |
| 02/08/2007 | WO2007014407A1 Method and device for mining subsurface deposits |
| 02/08/2007 | US20070029114 Polycrystalline diamond composite constructions comprising thermally stable diamond volume |
| 02/08/2007 | US20070029111 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk |
| 02/08/2007 | CA2617435A1 Starter car for a drilling device |
| 02/08/2007 | CA2617392A1 Method and device for mining underground deposits |
| 02/07/2007 | CN2866787Y Whipstock spring block type positioning device |
| 02/07/2007 | CN2866786Y Slot type defoaming device |
| 02/07/2007 | CN2866602Y Long-auger drill reaming bottom stirring and in-hole reaming concrete pile-grouting piling apparatus |
| 02/07/2007 | CN1908364A Offshore oil well drilling used water insulation duct and method for testing its elastic stability |
| 02/07/2007 | CN1298963C System and method for lining a section of a wellbore |