| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 01/21/2010 | US20100012379 Joint for use in back reaming |
| 01/21/2010 | US20100012378 Pressure orienting swivel |
| 01/21/2010 | US20100012377 System And Apparatus For Locating And Avoiding An Underground Obstacle |
| 01/21/2010 | US20100012376 Monolithic movable rotary well drilling rig |
| 01/21/2010 | US20100012340 Drilling car for close spaces |
| 01/21/2010 | US20100012322 Whipstock |
| 01/21/2010 | US20100012320 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 01/21/2010 | DE102008028997A1 Drilling method for producing borehole in e.g. earth in residential area, involves converting electric and/or hydraulic energy into mechanical energy in borehole for propulsion and driving of drilling tool |
| 01/20/2010 | EP2146027A1 Construction device with rotatable mast |
| 01/20/2010 | EP2145689A1 Method and apparatus for prepping surfaces with a high-frequency forced pulsed waterjet |
| 01/20/2010 | EP2145073A1 Boring system |
| 01/20/2010 | CN201386510Y Hydraumatic self- sealed self-locking window-opening integrated whipstock |
| 01/20/2010 | CN201386509Y Drilling tool combination for relay transmission measurement while drilling device |
| 01/20/2010 | CN101629474A Ground-driven underground horizontal boring method for oil well |
| 01/20/2010 | CN101629473A Wing rib driving mechanism of rotary steering drilling tool |
| 01/20/2010 | CN101629472A Radially horizontal well casing pipe hole opening technology |
| 01/20/2010 | CN101629471A Pot hole drilling and digging machine carried on wheel type tractor |
| 01/20/2010 | CN101629470A Drilling construction method for dry rock-socketed bored pile |
| 01/19/2010 | US7647990 Method for drilling with a wellbore liner |
| 01/19/2010 | US7647989 Backup safety flow control system for concentric drill string |
| 01/19/2010 | US7647988 Method and system for installing geothermal transfer apparatuses with a sonic drill |
| 01/19/2010 | CA2516649C Drill shoe |
| 01/19/2010 | CA2510081C Drilling with casing |
| 01/19/2010 | CA2452120C Relative drill bit direction measurement |
| 01/14/2010 | WO2010005881A1 Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
| 01/14/2010 | WO2010005522A1 Multi-function geothermal and water well drilling machine |
| 01/14/2010 | WO2009142836A3 System and method for improving operational characteristics of devices used in a well |
| 01/14/2010 | WO2008144164A8 Reusable filters for fluid loss measurements of drilling fluids |
| 01/14/2010 | US20100006341 Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
| 01/14/2010 | US20100006340 Downhole reservoir effluent column pressure restraining apparatus and methods |
| 01/14/2010 | US20100006339 On demand actuation system |
| 01/14/2010 | US20100006338 Optimized reaming system based upon weight on tool |
| 01/14/2010 | US20100006299 Dual Subsea Production Chokes for HPHT Well Production |
| 01/14/2010 | US20100006297 Pipe string device for conveying a fluid from a well head to a vessel |
| 01/14/2010 | DE102008031490A1 Device for introducing deep borehole in hard stone, has control unit placed in feed pipe arrangement and including flow control part, which is displaced in compensation chamber for controlling fluid dynamic cross-section of control unit |
| 01/13/2010 | EP2142747A2 Method and assembly for abrasive jet drilling |
| 01/13/2010 | EP2142746A1 Parallel drilling and completion for a dry tree floating production facility |
| 01/13/2010 | CN201381805Y Cylinder body of rock drill |
| 01/13/2010 | CN201381802Y Drilling and sounding seismic comprehensive exploration instrument |
| 01/13/2010 | CN201381801Y Well drilling rig |
| 01/13/2010 | CN101624898A Rock-entering vibrating device for rotary drilling machine |
| 01/13/2010 | CN100580215C Telescopic feed beam for rock drill |
| 01/12/2010 | US7644785 Geothermal heat loop installation |
| 01/12/2010 | US7644782 Method for correcting positioning errors in rock drilling, and rock drilling equipment |
| 01/12/2010 | US7644768 Separation device for material from a drilling rig situated on the seabed |
| 01/12/2010 | CA2517883C Full bore lined wellbores |
| 01/10/2010 | CA2637906A1 Apparatus for drilling machine alignment |
| 01/07/2010 | WO2009123918A3 System and method for one-trip hole enlargement operations |
| 01/07/2010 | WO2009111161A3 Water bottom ore sampler and method of using the same |
| 01/07/2010 | WO2009076635A3 Device and method to reduce breakdown/fracture initiation pressure |
| 01/07/2010 | US20100000796 Earth Drilling Device |
| 01/07/2010 | US20100000794 Lead the Bit Rotary Steerable Tool |
| 01/07/2010 | US20100000792 Method to detect coring point from resistivity measurements |
| 01/07/2010 | US20100000791 Method to detect formation pore pressure from resistivity measurements ahead of the bit during drilling of a well |
| 01/07/2010 | US20100000790 Apparatus and Method for Electrocrushing Rock |
| 01/07/2010 | DE102008026456A1 Bohrkopf Wellhead |
| 01/06/2010 | CN201377287Y Core-drilling machine capable of supplying water by itself |
| 01/05/2010 | US7641000 System for directional boring including a drilling head with overrunning clutch and method of boring |
| 01/05/2010 | US7640998 Excavation apparatus |
| 01/05/2010 | US7640984 Method for drilling and casing a wellbore with a pump down cement float |
| 01/05/2010 | CA2259638C Apparatus and method for installing a pipe in a wellbore |
| 12/31/2009 | US20090321142 Well Drilling Method for Prevention of Lost Circulation of Drilling Muds |
| 12/31/2009 | US20090321141 Methods and Apparatus for Wireline Drilling On Coiled Tubing |
| 12/31/2009 | US20090321139 Rotary Drill Bit Steerable System and Method |
| 12/31/2009 | US20090321138 Drill bit having functional articulation to drill boreholes in earth formations in all directions |
| 12/31/2009 | US20090321137 Drill bit having no gage pads and having the ability to drill vertically and laterally |
| 12/31/2009 | US20090321136 Drilling apparatus and method for drilling wells |
| 12/31/2009 | US20090321135 Rocket rig drilling apparatus |
| 12/31/2009 | US20090321134 Auger downforce unit for use on tractor 3-point hitch mounted earth augers |
| 12/31/2009 | US20090321133 Rock drilling apparatus and methdo for controlling rock drilling apparatus |
| 12/31/2009 | US20090321132 Electromagnetic energy assisted drilling system and method |
| 12/31/2009 | US20090321100 Method in respect of a percussive device, percussive device and rock drilling machine |
| 12/30/2009 | WO2009157776A1 Method for anchoring of a mooring line |
| 12/30/2009 | WO2009157762A1 Device for rotary drilling with a tube into a bottom located under water |
| 12/30/2009 | WO2009156569A1 Method and drilling apparatus for drilling |
| 12/30/2009 | WO2009099945A3 Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods |
| 12/30/2009 | WO2009032367A3 Directional drilling control using modulated bit rotation |
| 12/30/2009 | EP2137377A1 Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 12/30/2009 | EP2137376A1 Method of modifying drilling pattern, rock drilling rig, and software product |
| 12/30/2009 | CN201372772Y High pressure water-jet combination tool for ultra-short radius radial horizontal well |
| 12/30/2009 | CN201372755Y Drilling tool for spudding cement plug in composite sleeve for once |
| 12/30/2009 | CN201372727Y Guide bit for horizontal directional drilling pipe-laying drilling machine |
| 12/30/2009 | CN201372722Y Top drive casing running device |
| 12/30/2009 | CN201372721Y Power divider for horizontal directional drilling pipe-laying drilling machine |
| 12/30/2009 | CN100575659C Underbalance well completion method |
| 12/30/2009 | CA2729543A1 Reaming tool |
| 12/30/2009 | CA2729542A1 Reaming tool |
| 12/29/2009 | USRE41059 Expandable wellbore junction |
| 12/29/2009 | US7637330 Casing bottom hole assembly retrieval process |
| 12/29/2009 | US7637329 Methods and systems for drilling auxiliary holes |
| 12/29/2009 | CA2519676C Telescopic feed beam for rock drill and method of measuring rock drill travel |
| 12/24/2009 | US20090317194 Drilling rig and drilling method |
| 12/24/2009 | US20090314549 Maintaining shale stability by pore plugging |
| 12/24/2009 | US20090314548 Reaming and Stabilization Tool and Method for its Use in a Borehole |
| 12/24/2009 | US20090314547 Construction apparatus with extendable mast and method for operating such a construction apparatus |
| 12/24/2009 | US20090314545 Core sample orientation |
| 12/24/2009 | US20090314544 Well Drilling and Production Using a Surface Blowout Preventer |
| 12/24/2009 | US20090314495 Systems and methods for drilling and producing subsea fields |
| 12/24/2009 | US20090314270 Method and apparatus for moving a mass |
| 12/24/2009 | DE102008003968B3 Bohranlage Drilling rig |