| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 07/11/2012 | CN102561945A Drilling rig with intelligent flexible pipe |
| 07/11/2012 | CN102561944A Porous occlusive pile drilling machine and construction technology thereof |
| 07/11/2012 | CN102561939A Pipe shed drilling rig with front-mounted and rear-mounted lifting mechanisms |
| 07/11/2012 | CN102561938A Pipe shed drilling rig with front-mounted and rear-mounted synchronous double rotating disc mechanisms |
| 07/11/2012 | CN102080376B Built-in composite anchor rod construction method and composite anchor rod drilling tool used by same |
| 07/11/2012 | CN101818619B Well cementation and completion structure and process for cased branch well with temporarily-sealed opening |
| 07/10/2012 | US8215888 Cartridge tubular handling system |
| 07/10/2012 | CA2629275C System and method for making drilling parameter and/or formation evaluation measurements during casing drilling |
| 07/10/2012 | CA2505252C Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications |
| 07/09/2012 | DE202011004613U1 Bauarbeitsgerät Construction apparatus |
| 07/05/2012 | WO2012091985A2 Plasma charges |
| 07/05/2012 | WO2012091706A1 Subsea pressure control system |
| 07/05/2012 | WO2012088586A1 Methods for drilling and stimulating subterranean formations for recovering hydrocarbon and natural gas resources |
| 07/05/2012 | WO2012024127A3 Downhole closed-loop geosteering methodology |
| 07/05/2012 | US20120168229 Expandable downhole tool apparatus |
| 07/05/2012 | US20120168228 Apparatus and methods for drilling a wellbore using casing |
| 07/05/2012 | US20120168227 Drill rod guide |
| 07/05/2012 | US20120168226 Method of fabrication and use of integrated detonators |
| 07/05/2012 | CA2823042A1 Methods for drilling and stimulating subterranean formations for recovering hydrocarbon and natural gas resources |
| 07/05/2012 | CA2728630A1 Steerable deep drilling robot suitable for drilling geothermal boreholes |
| 07/04/2012 | CN202300200U 大孔径螺旋深孔钻机 Large diameter spiral deep hole drilling machine |
| 07/04/2012 | CN202300199U 一种履带式全液压锚杆钻机 One kind of crawler hydraulic bolt rig |
| 07/04/2012 | CN202300198U 井下减阻降扭器 Underground drag reduction down torque converter |
| 07/04/2012 | CN202300194U 水平定向钻机用缓冲动力头 Horizontal directional drilling buffer power head |
| 07/04/2012 | CN102536302A Method for relieving pressure and eliminating outburst of ground butting well |
| 07/04/2012 | CN102536125A Drill-bit structure capable of providing cutting power by fluid jet, and implementation method thereof |
| 07/04/2012 | CN102536121A Pulse type underground pressurization jet flow drilling method and device |
| 07/04/2012 | CN102536120A Drilling and positioning device for down-the-hole drill |
| 07/04/2012 | CN102536119A Drilling-digging exchanger |
| 07/04/2012 | CN102536118A Energy-storing capacitance type self-propelled electric workover rig |
| 07/04/2012 | CN102536117A Machine-mounted type multipurpose anchor rod drilling machine |
| 07/04/2012 | CN102536116A Bifunctional rotary digging machine |
| 07/04/2012 | CN102536115A Gas drainage borehole and construction method thereof |
| 07/04/2012 | CN102536110A Spiral drilling machine |
| 07/04/2012 | CN102535450A Five-axis cement-soil mixing pile device and construction method |
| 07/04/2012 | CN101839113B Underground deviation-correcting energy extraction device |
| 07/04/2012 | CN101812975B Anti-icing conductor tube composite structure |
| 07/04/2012 | CN101737005B Drilling tool for sleeving anchor cable and construction method for sleeving anchor cable with simultaneous casing |
| 07/04/2012 | CN101718173B Petroleum multilateral well solid expandable tubular (SET) bifurcation structure and construction method |
| 07/04/2012 | CN101691832B Vertical shaft drilling-grouting parallel operation technology |
| 07/04/2012 | CN101666209B Variable volume screw-bushing pair for screw drilling tools |
| 07/04/2012 | CN101305159B Method of drilling and producing hydrocarbons from subsurface formations |
| 07/04/2012 | CN101235716B Prealarming method and method for avoiding oil gas well drilling neighbouring wellbore collision |
| 07/04/2012 | CN101210481B Large curvature radiation horizontal well drilling technique and device |
| 07/04/2012 | CN101158271B Oil-water well oil layer positioning deep penetration horizontal drilling device |
| 07/04/2012 | CN101139911B Gas injection pressure-stabilizing drilling method |
| 07/04/2012 | CN101037927B Rotary pushing type guiding drilling tool |
| 07/03/2012 | US8210283 System and method for surface steerable drilling |
| 07/03/2012 | US8210281 Method and system for installing geothermal transfer apparatuses with a sonic drill |
| 07/03/2012 | US8210270 Drilling and completion deflector and method of using |
| 07/03/2012 | US8210254 Diverting tool |
| 07/03/2012 | CA2684423C Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 07/03/2012 | CA2619062C User interface for rock drilling rig |
| 06/28/2012 | WO2012088115A2 Method and apparatus for drilling a zero-radius lateral |
| 06/28/2012 | WO2012088102A2 Method and apparatus for milling a zero radius lateral window in casing |
| 06/28/2012 | WO2012087768A2 Projection interface techniques |
| 06/28/2012 | WO2012087752A2 High temperature drilling motor drive with cycloidal speed reducer |
| 06/28/2012 | WO2012084934A1 Directional drilling |
| 06/28/2012 | WO2012083413A1 Vibration tool |
| 06/28/2012 | WO2012047837A3 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 06/28/2012 | WO2012044138A3 Excavation system using a water jet, and excavation method using the same |
| 06/28/2012 | WO2012040570A3 Apparatus and method for drilling wellbores |
| 06/28/2012 | US20120160571 Drilling tool |
| 06/28/2012 | US20120160568 Resettable circulation tool |
| 06/28/2012 | US20120160567 Method and apparatus for drilling a zero-radius lateral |
| 06/28/2012 | US20120160565 System and method to control steering and additional functionality in a rotary steerable system |
| 06/28/2012 | US20120160564 System and method employing a rotational valve to control steering in a rotary steerable system |
| 06/28/2012 | US20120160563 System and method for controlling steering in a rotary steerable system |
| 06/28/2012 | US20120160562 Earth removal member with features for facilitating drill-through |
| 06/28/2012 | US20120160561 Semi-sealed blast hole bit and method for drilling |
| 06/28/2012 | US20120160497 Hydrocarbon Recovery Operations Fluids and Methods For Using the Same |
| 06/28/2012 | US20120160485 Treatment of Subterranean Formations |
| 06/28/2012 | CA2822619A1 Method and apparatus for drilling a zero-radius lateral |
| 06/28/2012 | CA2822614A1 Method and apparatus for milling a zero radius lateral window in casing |
| 06/28/2012 | CA2822327A1 Directional drilling |
| 06/28/2012 | CA2802917A1 Vibration tool |
| 06/27/2012 | EP2468960A1 Ground drilling method and apparatus. |
| 06/27/2012 | CN102518471A Rock burst energy releasing method of roadway of high stress area in coal mine |
| 06/27/2012 | CN102518412A Method for mining coal and gas by hydraulic jet grouting washout |
| 06/27/2012 | CN102518411A Method for mining coal bed gas by hydraulic washout of butted well in manner of pressure relief |
| 06/27/2012 | CN102518399A Mast and long spiral drilling machine using same |
| 06/27/2012 | CN102518398A Self-advancing type high-pressure jet sprayer for radial horizontal well drilling |
| 06/27/2012 | CN102518397A Tension mooring type underwater drilling system and mounting method for same |
| 06/27/2012 | CN102518396A Automatic drilling machine |
| 06/27/2012 | CN102518395A Self-propelled drilling robot |
| 06/27/2012 | CN102518394A Hydraulic driving two-stage feeding dovetail groove guiding asymmetrically-arranged anchor drilling machine |
| 06/27/2012 | CN102518123A Piling construction method and special long auger driller for implementing same |
| 06/27/2012 | CN101832101B Jet grouting and stirring drill tool |
| 06/27/2012 | CN101737006B Dry wet-type drill box of anchor rod drill carriage |
| 06/27/2012 | CN101629474B Ground-driven underground horizontal boring method for oil well |
| 06/27/2012 | CN101158270B Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device |
| 06/26/2012 | US8205693 Casing and liner drilling shoes having selected profile geometries, and related methods |
| 06/26/2012 | US8205688 Lead the bit rotary steerable system |
| 06/26/2012 | US8205686 Drill bit with adjustable axial pad for controlling torsional fluctuations |
| 06/26/2012 | US8205672 Acid tunneling bottom hole assembly and method utilizing reversible knuckle joints |
| 06/26/2012 | CA2651154C Method and apparatus for oscillating a drill string |
| 06/23/2012 | CA2762607A1 System and method employing a rotational valve to control steering in a rotary steerable system |
| 06/23/2012 | CA2762559A1 System and method for controlling steering in a rotary steerable system |
| 06/23/2012 | CA2762538A1 System and method to control steering and additional functionality in a rotary steerable system |
| 06/21/2012 | WO2012082779A2 Method, system and apparatus for deployment of umbilicals in subsea well operations |