| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
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| 02/11/2015 | CN104343406A 水平定向钻抢险装置及其应用方法 Horizontal directional drilling equipment and its application method and rescue |
| 02/11/2015 | CN104343390A 一种水利扩孔系统 One kind of water conservancy reaming system |
| 02/11/2015 | CN104343389A 指向式旋转导向钻井工具 Point rotary steerable drilling tool |
| 02/11/2015 | CN104343388A 一种泥浆对注的水平定向穿越设备 One kind of horizontal directional drilling mud through the injection device |
| 02/11/2015 | CN104343387A 钻井系统及空气承载运输系统 Drilling system and air transportation systems carrying |
| 02/11/2015 | CN104343386A 钻机 Rig |
| 02/11/2015 | CN104343383A 一种用于土遗址的钻孔装置 An apparatus for drilling earthen sites |
| 02/11/2015 | CN103195363B 负压射流式粒子冲击钻井注入装置 Negative impact drilling particle jet injection device |
| 02/11/2015 | CN103147687B 在钻孔桩井筒底部开挖岩石的环式切削法 At the bottom of the borehole drilling piles of rock excavation ring cutting method |
| 02/11/2015 | CN101858198B 一种用于井下纠偏的可控液压动力集成单元 Controllable hydraulic power for downhole corrective integrated unit |
| 02/10/2015 | US8950517 Drill bit with a retained jack element |
| 02/10/2015 | US8950511 Apparatus and method for installing ground anchoring systems |
| 02/10/2015 | US8950500 Suction pile wellhead and cap closure system |
| 02/10/2015 | US8950497 Assemblies, systems and methods for installing multiple subsea functional lines |
| 02/10/2015 | CA2815860C Combination whipstock and completion deflector |
| 02/10/2015 | CA2672463C Dual-direction ram-type blowout preventer seal |
| 02/05/2015 | WO2015016849A1 Platform system for use with pipe or tubing |
| 02/05/2015 | US20150034390 Adjustable bent housing for directional drill string |
| 02/05/2015 | US20150034387 Downhole shock assembly and method of using same |
| 02/05/2015 | US20150034384 Method of and apparatus for drilling a subterranean wellbore |
| 02/05/2015 | US20150034383 Offshore system comprising a rig and a cantilever |
| 02/05/2015 | US20150034327 Drilling system having slot for underwater storage of bop assembly |
| 02/05/2015 | US20150034312 Magnetic Latching Device For Downhole Wellbore Intercept Operations |
| 02/05/2015 | US20150033664 Cleat anchoring system useful on hdd rigs |
| 02/04/2015 | EP2831361A1 Hammer drill |
| 02/04/2015 | EP2831360A1 Systems and methods for optimal positioning of drilling pads |
| 02/04/2015 | CN204143871U 工程机械操作室的主动降噪装置以及凿岩钻机 Active noise reduction device engineering machinery and drilling rigs operating room |
| 02/04/2015 | CN204140525U 用于调节水平定向钻机推拉速度及推拉力的控制系统 Used to adjust the horizontal directional drilling and the push-pull sliding speed control system |
| 02/04/2015 | CN204139987U 地质勘探钻机的磨圈安装结构 Geological exploration drilling rig grinding ring mounting structure |
| 02/04/2015 | CN204139984U 扩孔钻具 Reaming drill |
| 02/04/2015 | CN204139972U 地质勘探用扩孔器 Geological exploration with reamer |
| 02/04/2015 | CN204139971U 切削式扩孔器 Cutting style reamer |
| 02/04/2015 | CN204139970U 新型扩孔器 The new reamer |
| 02/04/2015 | CN204139969U 螺杆钻具的冲振装置 Screw hole punch-up device |
| 02/04/2015 | CN204139968U 一种钻井用双脉冲水力振荡器 One kind of drilling with hydraulic double pulse oscillator |
| 02/04/2015 | CN204139967U 造斜扩孔钻具 Whipstocking reaming drill |
| 02/04/2015 | CN204139966U 一种控制斜向器定向锚定的启动阀 A method for controlling the orientation whipstock anchor start valve |
| 02/04/2015 | CN104329036A 车载电动液压振动式钻井机卸杆机构 Car electric hydraulic vibration drilling machine unloading bar mechanism |
| 02/04/2015 | CN104329026A 一种塌漏层段表层连续钻完井装置及工艺 One kind of collapse drain intervals continuous surface drilling and completion equipment and technology |
| 02/04/2015 | CN104329025A 水平螺旋钻导向装置 Horizontal auger guide |
| 02/04/2015 | CN104329024A 回转立轴结构 Rotary vertical structure |
| 02/04/2015 | CN104329023A 煤层气丛式井钻井方法 CBM cluster wells drilling method |
| 02/04/2015 | CN104329022A 车载式钻机回转装置 Truck-mounted drilling rig rotary device |
| 02/04/2015 | CN103291209B 单拐臂超越冲击钻机及应用方法 Beyond the impact of a single crank arm rig and application methods |
| 02/04/2015 | CN101881135B 一种新型钻机底座的下层结构 A new rig substructure base |
| 02/03/2015 | US8944186 Device for performing deep drillings and method of performing deep drillings |
| 02/03/2015 | US8944184 Suspension extraction device |
| 02/03/2015 | US8943970 Energy transfer device |
| 02/03/2015 | CA2784979C Air hammer for a boring machine |
| 02/03/2015 | CA2541666C Directional drilling |
| 01/30/2015 | CA2872736A1 Flow controlling downhole tool |
| 01/30/2015 | CA2827174A1 Adjustable bent housing for directional drill string |
| 01/29/2015 | WO2015013562A1 System for monitoring a marine well for shallow water flow |
| 01/29/2015 | WO2015012976A1 Apparatus and methods for performing downhole operations using a selectably operable motor |
| 01/29/2015 | WO2015012848A1 Expandable bullnose assembly for use with a wellbore deflector |
| 01/29/2015 | WO2015012847A1 Expandable and variable-length bullnose assembly for use with a wellbore deflector assembly |
| 01/29/2015 | WO2015012845A1 Expandadle bullnose assembly for use with a wellbore deflector |
| 01/29/2015 | WO2015012844A1 Adjustable bullnose assembly for use with a wellbore deflector assembly |
| 01/29/2015 | WO2015012843A1 Deflector assembly for a lateral wellbore |
| 01/29/2015 | WO2015012825A1 Method and device for the concurrent determination of fluid density and viscosity in-situ |
| 01/29/2015 | WO2015011336A1 Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus |
| 01/29/2015 | US20150027784 Rock drill machine with feed leg |
| 01/29/2015 | US20150027783 Nanoparticle kinetic gas hydrate inhibitors |
| 01/29/2015 | US20150027714 Swelling Debris Barrier and Methods |
| 01/29/2015 | US20150027707 Engineered methods and materials for wellbore strengthening in subterranean operations |
| 01/28/2015 | CN204126594U 一种用于污染废渣固化的注浆系统 A contaminated waste grouting systems for curing |
| 01/28/2015 | CN204126574U 井下导向工具支臂自动回收装置 Downhole tool guide arm automatic recovery |
| 01/28/2015 | CN204126555U 垂直钻井系统导向块 Vertical Drilling System guide block |
| 01/28/2015 | CN204126554U 一种钻机加压钻进装置 One kind of pressure drilling rig equipment |
| 01/28/2015 | CN104314498A 一种侧钻水平井高效完井方法 A lateral horizontal well completions and efficient method |
| 01/28/2015 | CN104314472A 螺杆钻具的冲振装置 Screw hole punch-up device |
| 01/28/2015 | CN104314471A 基于钻柱振动的井下扭力冲击激励装置 Downhole torque on the drill string vibration impact excitation device |
| 01/28/2015 | CN104314470A 垂直钻井工具 Vertical Drilling Tools |
| 01/28/2015 | CN104314469A 一种旋转导向钻井工具的偏执机构 A rotary steerable drilling paranoid organization tool |
| 01/28/2015 | CN104314468A 一种矿井顶板的钻孔装置 Mine roof of a drilling device |
| 01/28/2015 | CN104314467A 一种掘进钻机 One kind of boring rig |
| 01/28/2015 | CN104314466A 钻机 Rig |
| 01/28/2015 | CN104314465A 一种减小钻柱与井壁摩阻的方法及一种分割接头 And a method for reducing the friction borehole drill string and a split connector |
| 01/28/2015 | CN104314464A 全液压钻机联动式液压系统 Hydraulic drilling rig hydraulic system linkage |
| 01/28/2015 | CN104314463A 一种管桩用地钻机 One kind of pile land rig |
| 01/28/2015 | CN104314462A 球形钻挖机 Spherical drilling machine |
| 01/28/2015 | CN102713128B 采用定时连接区域的旋转式可转向工具 The timing of the connection area using the rotary steerable tool |
| 01/27/2015 | US8939237 Underground drilling apparatus |
| 01/27/2015 | US8939236 Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools |
| 01/27/2015 | US8939234 Systems and methods for improving drilling efficiency |
| 01/27/2015 | US8939233 Methods and systems for drilling |
| 01/27/2015 | US8939204 Method and apparatus for communicating with a device located in a borehole |
| 01/27/2015 | US8939202 Fracturing nozzle assembly with cyclic stress capability |
| 01/27/2015 | US8938930 Support apparatus for wellbore tools |
| 01/27/2015 | CA2796475C Rock drilling rig, method for controlling the temperature of its drive equipment, and liquid cooling system |
| 01/27/2015 | CA2787583C Underwater drilling arrangement and method for making a bore |
| 01/27/2015 | CA2775842C Earth-boring tools having expandable members |
| 01/27/2015 | CA2593130C Directional drilling control |
| 01/22/2015 | WO2015010034A1 Method and apparatus for casing entry |
| 01/22/2015 | WO2015009213A1 Method for boring holes and installing collection pipes in holes |
| 01/22/2015 | US20150021094 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations |
| 01/22/2015 | US20150021092 Drilling system and method |
| 01/22/2015 | US20150021037 Pre-positioned capping device and diverter |
| 01/22/2015 | US20150021036 Pre-positioned capping device for source control with independent management system |
| 01/22/2015 | US20150021018 High Pressure Large Bore Well Conduit System |