| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 06/11/2009 | US20090145662 Drilling systems and methods |
| 06/11/2009 | US20090145659 Method and apparatus for final storage and safe operation of nuclear power stations |
| 06/11/2009 | US20090145460 Remotely Controlled Decoking Tool Used in Coke Cutting Operations |
| 06/10/2009 | EP2067924A1 Drilling mechanism and drilling method |
| 06/10/2009 | EP2067923A1 Drilling mechanism and drilling method |
| 06/10/2009 | CN201254952Y Automatic vertical drilling tool by utilizing aerodynamics |
| 06/10/2009 | CN201254951Y Centering pilot device of large caliber pile foundation pore-forming drill |
| 06/10/2009 | CN201254950Y Stabilized non-anchor rope workover rig |
| 06/10/2009 | CN201254949Y Split tower type full-hydraulic power head drill |
| 06/10/2009 | CN201254948Y Pneumatic anchor rod hammer drill |
| 06/10/2009 | CN201254947Y Silencing device of rock drill |
| 06/10/2009 | CN101454532A Rotary steerable tool |
| 06/10/2009 | CN101451425A Shunt type automatic vertical well drilling tool suitable for gas drilling |
| 06/09/2009 | US7543658 Directional drilling control |
| 06/09/2009 | CA2568659C Mobile drilling rig with dual carriers |
| 06/04/2009 | WO2009068316A1 System and method for drilling lateral boreholes |
| 06/04/2009 | WO2009068315A1 System and method for drilling and completing lateral boreholes |
| 06/04/2009 | WO2009051950A3 Systems and methods for reducing backward whirling while drilling |
| 06/04/2009 | WO2009040569A3 A mobile land rig |
| 06/04/2009 | WO2009029269A3 Devices and methods for dynamic boring procedure reconfiguration |
| 06/04/2009 | WO2008155654A3 Hydrocarbon recovery drill string apparatus, subterranean hydrocarbon recovery drilling methods, and subterranean hydrocarbon recovery methods |
| 06/04/2009 | US20090139771 Method of making drilling fluids containing microbubbles |
| 06/04/2009 | US20090139768 Apparatus and Methods for Continuous Tomography of Cores |
| 06/04/2009 | US20090139731 Drilling device and drilling method |
| 06/04/2009 | US20090139728 Screened valve system for selective well stimulation and control |
| 06/04/2009 | US20090139713 Method and apparatus for detecting while drilling underbalanced the presence and depth of water produced from the formation |
| 06/04/2009 | DE102007057541A1 Widening device for e.g. widening ground bores, has nozzle ring attached at water supply tube, and pull rods having holding ring, joint sleeve, brake levers and holding shoes arranged between water supply tube and product pipe |
| 06/03/2009 | EP2065554A1 System and method for drilling and completing lateral boreholes |
| 06/03/2009 | EP2065553A1 System and method for drilling lateral boreholes |
| 06/03/2009 | EP2064414A1 Method for drilling rock |
| 06/03/2009 | CN201250608Y Electric well workover machine |
| 06/03/2009 | CN101446179A Intelligent oil well servicing rig |
| 06/03/2009 | CN101446178A Wind pressure air drilling equipment in downhole soft outbursting coal bed and process matched therewith |
| 06/03/2009 | CN100494619C Construction method and device for pile foundation embedded in rock |
| 06/03/2009 | CN100494618C Rod-pit drilling rod |
| 06/03/2009 | CN100494617C Construction method of center mounting type anchor drill |
| 06/02/2009 | US7540339 Sleeved hose assembly and method for jet drilling of lateral wells |
| 06/02/2009 | US7540337 Adaptive apparatus, system and method for communicating with a downhole device |
| 06/02/2009 | CA2567025C Modular system for a back reamer |
| 06/02/2009 | CA2565589C Methods of completing a subterranean well and associated apparatus |
| 06/02/2009 | CA2405096C Rock drilling rig |
| 05/28/2009 | WO2009067468A1 Drilling system |
| 05/28/2009 | WO2009067373A2 Generating and updating true vertical depth indexed data and log in real time data acquisition |
| 05/28/2009 | WO2009067024A1 Tool for drilling through loosely-packed materials |
| 05/28/2009 | WO2009065844A1 Method of drilling a wellbore |
| 05/28/2009 | WO2009065581A1 Flow diverter for drilling |
| 05/28/2009 | US20090138202 Method and apparatus for imaging bed boundaries using azimuthal propagation resistivity measurements |
| 05/28/2009 | US20090133936 Lead the Bit Rotary Steerable Tool |
| 05/28/2009 | US20090133935 Olefin Metathesis for Kerogen Upgrading |
| 05/28/2009 | US20090133934 Method and device for releasing a block on a bore crown during a boring process |
| 05/28/2009 | US20090133933 Method and device for drilling, particularly percussion or rotary percussion drilling, a hole in soil or rock material |
| 05/28/2009 | US20090133929 Method, Drilling Machine, Drill bit and Bottom Hole Assembly for Drilling by Electrical Discharge by Electrical Discharge Pulses |
| 05/28/2009 | US20090133877 One Trip Milling System |
| 05/28/2009 | US20090133871 Drilling, perforating and formation analysis |
| 05/28/2009 | CA2706590A1 Drilling system |
| 05/28/2009 | CA2706309A1 Generating and updating true vertical depth indexed data and log in real time data acquisition |
| 05/28/2009 | CA2704606A1 Tool for drilling through loosely-packed materials |
| 05/28/2009 | CA2702869A1 Method of drilling a wellbore |
| 05/27/2009 | EP2063067A1 Underwater drilling device and method for carrying out underwater drilling, in particular for attaching an underwater anchoring |
| 05/27/2009 | EP1784555A4 Method and system for installing and maintaining a pipeline while minimizing associated ground disturbance |
| 05/27/2009 | CN201246368Y 液力油加热器 Hydraulic oil heater |
| 05/27/2009 | CN201246114Y Anti-friction and twist well drilling collar |
| 05/27/2009 | CN201246105Y Circulating well head pressure device |
| 05/27/2009 | CN201246104Y Recoverable slant machine and salvaging tool |
| 05/27/2009 | CN201246103Y Pneumatic water exploring drill |
| 05/27/2009 | CN201246102Y Drilling positioner |
| 05/27/2009 | CN201246101Y Well drill machine |
| 05/27/2009 | CN201246100Y Integrated arm type down-hole drill |
| 05/27/2009 | CN101443527A Steering systems for coiled tubing drilling |
| 05/27/2009 | CN101443526A Directional control drilling system |
| 05/27/2009 | CN101440694A Casing tool capable of being pressed and circulated |
| 05/27/2009 | CN100491690C Rotary excavating extruding expanding drilling machine and its working method |
| 05/27/2009 | CN100491689C Rotary excavating extruding expanding drilling machine and its working method |
| 05/26/2009 | US7537057 Slimline tieback connector |
| 05/26/2009 | US7537055 Method and apparatus for forming a window in a casing using a biasing arm |
| 05/26/2009 | CA2615934C Window milling method |
| 05/26/2009 | CA2472642C Drive line for down hole mud motor |
| 05/26/2009 | CA2356184C Tubing anchor |
| 05/26/2009 | CA2311160C Method for drilling and completing a wellbore and a pump down cement float collar for use therein |
| 05/22/2009 | WO2009065107A1 Method and system for controlling force in a down-hole drilling operation |
| 05/22/2009 | WO2009064967A1 Earth-boring tools attachable to a casing string and methods for their manufacture |
| 05/22/2009 | WO2009064941A2 Tensioner anti-rotation device |
| 05/22/2009 | WO2009064662A1 Degradable whipstock apparatus and methods of use |
| 05/22/2009 | WO2009062726A1 Methods for cuttings removal for a wireline drilling tool |
| 05/22/2009 | WO2009062719A2 Gas cutting borehole drilling apparatus |
| 05/22/2009 | CA2705565A1 Earth-boring tools attachable to a casing string and methods for their manufacture |
| 05/22/2009 | CA2705321A1 Degradable whipstock apparatus and methods of use |
| 05/21/2009 | US20090127000 Sectional drive and coupling system |
| 05/21/2009 | US20090126999 Compositions and Methods for Water Control and Strengthening Unconsolidated Formations |
| 05/21/2009 | US20090126998 Hybrid drill bit and design method |
| 05/21/2009 | US20090126997 Counterbalance Enabled Power Generator For Horizontal Directional Drilling Systems |
| 05/21/2009 | US20090126994 Method And System For Controlling Force In A Down-Hole Drilling Operation |
| 05/21/2009 | US20090126946 Method and apparatus for drilling and servicing subterranean wells with rotating coiled tubing |
| 05/21/2009 | US20090126938 Utility skid tree support system for subsea wellhead |
| 05/20/2009 | DE202008015240U1 Vorrichtung und Bohrkopf zum Einbringen einer Bohrung in das Erdreich Device and drill head for introducing a hole in the ground |
| 05/20/2009 | CN201241623Y Anti-surge apparatus of navigation channel drill machine |
| 05/20/2009 | CN201241622Y Drill rod clamper of non-digging pipe laying drill |
| 05/20/2009 | CN201241621Y Vertical drilling tool |
| 05/20/2009 | CN201241620Y Rotary type fin guide head |
| 05/20/2009 | CN201241619Y Built-in type reducing stabilizer |