| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 10/15/2009 | US20090255663 Drilling apparatus |
| 10/15/2009 | US20090255433 Devices and Methods for Perforating A Wellbore |
| 10/15/2009 | DE102008018574A1 Verfahren und Vorrichtungen zur Verlegung einer Rohrleitung im Boden Methods and apparatus for laying a pipeline in the ground |
| 10/14/2009 | EP2108780A1 Hybrid drilling method |
| 10/14/2009 | EP2108779A2 Crank for an ice drill and ice drill comprising such a crank |
| 10/14/2009 | CN201326393Y Oil pipe winch mechanism of hydraulic rotary-digging drilling machine |
| 10/14/2009 | CN201326376Y Multi-functional hydraulic rotary-digging drilling machine |
| 10/14/2009 | CN101555774A Submarine deep-hole coring drilling rig |
| 10/14/2009 | CN101555771A Combined flow-increasing connector for marine drilling riser |
| 10/14/2009 | CN101555770A Crawler type direct and reverse circulation drilling machine |
| 10/14/2009 | CN100549358C Fish bone type branch well drilling and completing method |
| 10/14/2009 | CA2673197A1 Method and apparatus for lateral well drilling with enhanced capability for clearing cuttings and other particles |
| 10/13/2009 | US7600586 System for steering a drill string |
| 10/13/2009 | US7600570 Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells |
| 10/13/2009 | CA2531542C Safety shield for rotary drilling rigs |
| 10/13/2009 | CA2524681C Electrical transmission apparatus through rotating tubular members |
| 10/08/2009 | WO2009123476A1 Systems and methods for subsea drilling |
| 10/08/2009 | WO2009122211A2 Directional well drilling |
| 10/08/2009 | WO2009122001A1 Drilling unit, method for slot drilling and slotting device |
| 10/08/2009 | WO2009089528A3 Subsea drilling system and method for operating the drilling system |
| 10/08/2009 | WO2009089524A3 Method and device for subsea wire line drilling |
| 10/08/2009 | WO2009088769A3 Vibratory unit for drilling systems |
| 10/08/2009 | US20090250266 Sectional back reamer for horizontal directional drilling |
| 10/08/2009 | US20090250264 Method of Drilling and Production Hydrocarbons from Subsurface Formations |
| 10/08/2009 | US20090250263 Adaptive user interface for rock drilling rig |
| 10/08/2009 | CA2722762A1 Directional well drilling |
| 10/08/2009 | CA2719752A1 System and method for one-trip hole enlargement operations |
| 10/07/2009 | CN201321885Y High-pressure exhausting silencer |
| 10/07/2009 | CN201321820Y Cooling mechanism for drilling rotary flow guide device |
| 10/07/2009 | CN201321819Y Wellhead sliding bushing device |
| 10/07/2009 | CN201321621Y Double-wheel milling underground pore-forming device |
| 10/07/2009 | CN101553639A Dual subsea production chokes for high pressure well production |
| 10/07/2009 | CN101550805A Abrasion resistant drilling tool plated with diamond layer and manufacturing technology thereof |
| 10/06/2009 | US7597156 Mechanical tee post driver |
| 10/01/2009 | WO2009117813A1 System and method for drilling multiple wells |
| 10/01/2009 | WO2009088571A3 Counterbalance enabled power generator for horizontal directional drilling systems |
| 10/01/2009 | US20090242277 Compound engagement profile on a blade of a down-hole stabilizer and methods therefor |
| 10/01/2009 | US20090242276 Pump Mechanism for Cooling of Rotary Bearings in Drilling Tools |
| 10/01/2009 | US20090242275 Stabilizer and reamer system having extensible blades and bearing pads and method of using same |
| 09/30/2009 | CN201318125Y Bottom-hole booster pump |
| 09/30/2009 | CN201318124Y Track-mounted roof bolt driller |
| 09/30/2009 | CN101545358A Erosion reducing system for gas drilling |
| 09/30/2009 | CN101545357A Method for drilling hole with plastic clay for protecting wall of hole |
| 09/30/2009 | CN100545412C Fluid jet drilling tool |
| 09/29/2009 | CA2538563C Whipstock anchor |
| 09/29/2009 | CA2351270C Drilling method and measurement-while-drilling apparatus and shock tool |
| 09/29/2009 | CA2276517C Lockable swivel apparatus and method |
| 09/24/2009 | WO2009116963A1 Methods and apparatus for expanding the diameter of a borehole |
| 09/24/2009 | WO2009115803A1 Device and method of lining a wellbore |
| 09/24/2009 | WO2009115687A1 Drill packer member, drill pipe, and corresponding drill pipe string |
| 09/24/2009 | WO2009115638A1 Joint arrangement for coupling of a drill shoe |
| 09/24/2009 | WO2009056329A3 Method and device for testing the coating of a pipeline while laying the pipeline in a liquid-filled borehole |
| 09/24/2009 | US20090236148 Flow Guide Actuation |
| 09/24/2009 | US20090236144 Managed pressure and/or temperature drilling system and method |
| 09/24/2009 | CA2718688A1 Device and method of lining a wellbore |
| 09/24/2009 | CA2712670A1 Drill packer member, drill pipe, and corresponding drill pipe string |
| 09/23/2009 | EP2103774A1 Device and method of lining a wellbore |
| 09/23/2009 | CN201314196Y Double power self-propelled electrohydraulic workover rig |
| 09/23/2009 | CN201314195Y Emulsion outburst-prevention drill |
| 09/23/2009 | CN101538987A Anchoring drilling machine based on working mode of double-pump complementation automatic merging |
| 09/23/2009 | CN100543265C Connected drilling rod construction method of agitation pile |
| 09/22/2009 | US7591327 Drilling at a resonant frequency |
| 09/22/2009 | US7591316 Production system |
| 09/17/2009 | WO2009114234A2 Visualization techniques for oilfield operations |
| 09/17/2009 | WO2009114122A1 Method and apparatus for jet-assisted drilling or cutting |
| 09/17/2009 | WO2009111845A1 Collapsible drilling rig |
| 09/17/2009 | WO2009085753A3 Steerable drilling system |
| 09/17/2009 | WO2009085615A3 Borehole imaging and orientation of downhole tools |
| 09/17/2009 | US20090229883 Flow Guide Actuation |
| 09/17/2009 | US20090229819 Visualization techniques for oilfield operations |
| 09/17/2009 | CA2718045A1 Method and apparatus for jet-assisted drilling or cutting |
| 09/17/2009 | CA2716937A1 Collapsible drilling rig |
| 09/16/2009 | EP2101035A2 Method for increasing production from a wellbore |
| 09/16/2009 | EP1649129B1 Cutting tool comprising a device for transporting particles of a magnetic material |
| 09/16/2009 | CN201310302Y Undisturbed soil column collecting combination unit |
| 09/16/2009 | CN201310301Y Intelligent petroleum workover rig |
| 09/16/2009 | CN201310300Y Earth auger |
| 09/16/2009 | CN101532391A In-hole drilling tool integrating drilling, slotting and punching coal seam and using method thereof |
| 09/16/2009 | CN100540839C Boring machine having differential global positioning system receiver for underwater rock and boring method thereof |
| 09/16/2009 | CN100540838C Angle and reactive torque control device for a cycloid type motor provided with a spindle and drilling bit in a bended drill string |
| 09/15/2009 | US7588100 Method and apparatus for directional drilling with variable drill string rotation |
| 09/15/2009 | CA2595029C Downhole drilling apparatus and method for use of same |
| 09/15/2009 | CA2535352C Using fluids at elevated temperatures to increase fracture gradients |
| 09/15/2009 | CA2480249C Nozzle for jet drilling |
| 09/11/2009 | WO2009111161A2 Water bottom ore sampler and method of using the same |
| 09/11/2009 | WO2009110847A1 A horizontal directional drilling system |
| 09/11/2009 | WO2009110804A1 A method and device for making lateral openings out of a wellbore |
| 09/11/2009 | CA2717774A1 Shaker deck adjustment apparatus |
| 09/11/2009 | CA2717007A1 A method and device for making lateral openings out of a wellbore |
| 09/11/2009 | CA2716909A1 A horizontal directional drilling system |
| 09/10/2009 | US20090223719 Dual string orbital drilling system |
| 09/10/2009 | US20090223718 Impact Excavation System And Method |
| 09/10/2009 | US20090223715 Conductor pipe string deflector and method |
| 09/10/2009 | DE102008012970A1 Apparatus for inserting borehole in ground, has influencing unit influencing direction in which borehole is inserted and comprising measuring device e.g. inclinometer, for detecting position of guide device in borehole |
| 09/09/2009 | EP2098680A1 Downhole hydraulic control system |
| 09/09/2009 | EP2098679A1 A method and device for making lateral openings out of a wellbore |
| 09/09/2009 | EP2097610A1 Expandable reamers for earth-boring applications and methods of using the same |
| 09/09/2009 | EP1604093B1 Method and apparatus for drilling a borehole with a borehole liner |
| 09/09/2009 | EP1558831B1 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications |
| 09/09/2009 | CN201306122Y Anchor rod end hole drilling localizer |