| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 04/17/2012 | US8157024 Ball piston steering devices and methods of use |
| 04/17/2012 | US8157023 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 04/17/2012 | US8157014 Subsea solids processing apparatuses and methods |
| 04/17/2012 | US8157002 Slip ring apparatus for a rotary steerable tool |
| 04/17/2012 | CA2689034C Method of drilling and completing multiple wellbores inside a single caisson |
| 04/12/2012 | WO2012047863A2 Remotely controlled apparatus for downhole applications and related methods |
| 04/12/2012 | WO2012047847A1 Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools |
| 04/12/2012 | WO2012047837A2 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 04/12/2012 | WO2012047693A2 Formation sensing and evaluation drill |
| 04/12/2012 | WO2012016833A3 Holding apparatus for a drill rod of a taphole drilling machine and method for removing a drill rod |
| 04/12/2012 | WO2011160027A4 Oil operated rotary steerable system |
| 04/12/2012 | US20120087738 Earth drilling device |
| 04/12/2012 | US20120085581 System and method for damping vibration in a drill string using a magnetorheological damper |
| 04/12/2012 | US20120085529 Enhanced permeability subterranean fluid recovery system and methods |
| 04/12/2012 | DE10297287B4 Richtkeil für ein Futterrohr Whipstock for a liner |
| 04/12/2012 | CA2813638A1 Formation sensing and evaluation drill |
| 04/12/2012 | CA2813620A1 Remotely controlled apparatus for downhole applications and related methods |
| 04/12/2012 | CA2813618A1 Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools |
| 04/12/2012 | CA2813611A1 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 04/11/2012 | CN202187715U 一种钻具外壁设备轴向减震固定工装 One kind of drilling equipment axially outer damping fixed tooling |
| 04/11/2012 | CN202187714U 新型履带式钻机的自起升及起吊装置 The new crawler rig since lifting and hoisting equipment |
| 04/11/2012 | CN202187713U 一种轮式通井机 One kind of wheeled hoist |
| 04/11/2012 | CN202187712U 一种钻机车的驾驶室 One kind of rig cab car |
| 04/11/2012 | CN202187711U 一种全方位钻装机钻臂 Installed a holistic drilling boom |
| 04/11/2012 | CN1963139B 自贯入水下开孔绞吸钻机 Since the penetration hole cutter suction underwater rig |
| 04/11/2012 | CN102414392A 可变力/可变频率的声波钻头 Variable force / variable frequency sound waves drill |
| 04/11/2012 | CN102409978A 复杂地层灌注桩施工采用多级合金超前牙轮钻头回旋钻进成孔工法 Complex formation pile construction using multi-level alloy cone bit ahead of the roundabout into the hole drilling engineering methods |
| 04/11/2012 | CN102409977A 一种分支井造斜器与空心导斜器一体化置换工艺 One kind of wells and hollow whipstock guide ramp filter replacement process integration |
| 04/11/2012 | CN102409976A 超临界二氧化碳径向水平井钻井系统及其钻井方法 Supercritical carbon dioxide radial horizontal drilling system and drilling method |
| 04/11/2012 | CN102409975A 车载式岩心钻机 Truck-mounted core drilling rig |
| 04/11/2012 | CN102409974A 振动挤压式钻孔机 Vibration extrusion Drills |
| 04/11/2012 | CN102409973A Vehicle-mounted full hydraulic multifunctional deep well drilling machine |
| 04/11/2012 | CN102409971A 地下挖掘用挖掘装置、旋转式挖掘机和地下挖掘方法 Underground digging and digging, rotary excavator and underground mining methods |
| 04/11/2012 | CN102409965A 一种液压冲击钻 A hydraulic impact drill |
| 04/10/2012 | US8151906 Microtunnelling system and apparatus |
| 04/10/2012 | US8151904 Method for improved well control with a downhole device |
| 04/10/2012 | US8151899 Method and device for rock drilling |
| 04/10/2012 | CA2671423C Expandable reamers for earth-boring applications and methods of using the same |
| 04/05/2012 | WO2012044138A2 Excavation system using a water jet, and excavation method using the same |
| 04/05/2012 | WO2012044127A2 Punching device having head part |
| 04/05/2012 | WO2012042119A1 Boom arrangement for rock drilling rig |
| 04/05/2012 | US20120083944 Remote Controlled Vehicle |
| 04/05/2012 | US20120080235 System and method for directionally drilling a borehole with a rotary drilling system |
| 04/05/2012 | US20120080234 Drill Bit Steering Assembly |
| 04/05/2012 | US20120080233 Steering Mechanism with a Ring Disposed about an Outer Diameter of a Drill Bit |
| 04/05/2012 | US20120080232 Emulsion-Based Cleaning Composition For Oilfield Applications |
| 04/05/2012 | US20120080228 Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools |
| 04/05/2012 | US20120080195 Drilling Composition, Process for its Preparation, and Applications Thereof |
| 04/05/2012 | US20120080183 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 04/05/2012 | CA2845916A1 Remote controlled vehicle |
| 04/05/2012 | CA2811779A1 Drilling apparatus having head |
| 04/04/2012 | CN202181899U 全角度施钻工程钻机 The whole point of applied engineering drilling rig |
| 04/04/2012 | CN202181845U 手持式钻杆定位器 Handheld drill pipe locator |
| 04/04/2012 | CN202181844U 一种与工程机械配套的全液压潜孔钻机 One kind of construction machinery and hydraulic submersible drilling rig |
| 04/04/2012 | CN102400705A 高突矿井煤巷掘进防突钻冲装锚机组 Lane Tunnel Coal Mine High sudden outburst prevention drill punch unit installed anchor |
| 04/04/2012 | CN102400652A 一种自适应地层环境的管鞋 An adaptive formation environment shoe |
| 04/04/2012 | CN102400645A 一种连续油管导向工具机械部分 A continuous tubing guide tool mechanical part |
| 04/04/2012 | CN102400644A 无级可调井眼轨迹控制工具 Stepless adjustable trajectory control tools |
| 04/04/2012 | CA2755028A1 Method and apparatus for sonic drilling |
| 04/03/2012 | US8148303 Surfactant additives used to retain producibility while drilling |
| 04/03/2012 | US8146685 Methods and apparatus for drilling, completing and configuring U-tube boreholes |
| 04/03/2012 | US8146683 Drilling out casing bits with other casing bits |
| 04/03/2012 | US8146682 Apparatus and methods of milling a restricted casing shoe |
| 04/03/2012 | CA2668152C Offshore universal riser system |
| 04/03/2012 | CA2610186C Steerable drilling system |
| 04/01/2012 | CA2716446A1 Effective horizontal drilling through a hydrocarbon reservoir |
| 03/29/2012 | WO2012040570A2 Apparatus and method for drilling wellbores |
| 03/29/2012 | WO2012038583A1 Method and apparatus for down-the-hole drilling |
| 03/29/2012 | US20120073877 Hardpan auger |
| 03/29/2012 | US20120073876 Apparatus and Method for Drilling Wellbores |
| 03/29/2012 | US20120073813 Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids |
| 03/28/2012 | EP2118437B1 Reservoir stimulation while running casing related applications |
| 03/28/2012 | CN202176263U 水力喷射钻井喷头 Hydro-jet nozzle drilling |
| 03/28/2012 | CN202176262U 钻机整体移运及丛式井切换装置 Rig overall shift operation and cluster wells switching device |
| 03/28/2012 | CN102395743A Whipstock attachment to a fixed cutter drilling or milling bit |
| 03/28/2012 | CN102392678A Gas drainage method combining surface and underground fracturing and permeability improvement |
| 03/28/2012 | CN102392677A Permeability improvement technology for coal bed gas reservoir cap by using three-dimensional fracture network modification |
| 03/28/2012 | CN102392606A Soil cleaning device and drilling machine as well as use method of soil cleaning device |
| 03/28/2012 | CN102392602A Separated orientation joint assembly for oil exploration |
| 03/28/2012 | CN102392601A Method for determining hole trajectory of multi-target horizontal well |
| 03/28/2012 | CN102392600A Handheld drill pipe locator |
| 03/28/2012 | CN102392599A Method for drilling by reverse circulation cutting |
| 03/28/2012 | CN101454532B Rotary steerable tool |
| 03/28/2012 | CA2715867A1 Method and apparatus for earth drilling at an angle |
| 03/27/2012 | US8141659 Method and apparatus for lateral well drilling utilizing an abrasive fluid stream discharged from a rotating nozzle |
| 03/27/2012 | US8141658 Tilted drive sub |
| 03/27/2012 | US8141657 Steerable rotary directional drilling tool for drilling boreholes |
| 03/27/2012 | CA2496162C Wellbore drilling system and method |
| 03/27/2012 | CA2458562C Method and apparatus of orientation of a rock drilling rig |
| 03/22/2012 | WO2012037458A2 Apparatus and methods for drilling wellbores by ranging existing boreholes using induction devices |
| 03/22/2012 | WO2012037452A2 Reservoir navigation using magnetic field of dc currents |
| 03/22/2012 | WO2012036763A1 Multi-operational multi-drilling system |
| 03/22/2012 | WO2011156364A4 Improved soil shoring method |
| 03/22/2012 | US20120070225 Hydraulically actuated safety lock ring |
| 03/22/2012 | US20120067648 Intelligent wellbore propagation system |
| 03/22/2012 | US20120067647 Apparatus and Method for Lateral Well Drilling |
| 03/22/2012 | US20120067646 Apparatus and Method for Lateral Well Drilling |
| 03/22/2012 | US20120067643 Two-phase isolation methods and systems for controlled drilling |
| 03/22/2012 | US20120067642 Multi-Operational Multi-Drilling System |
| 03/22/2012 | CA2811633A1 Apparatus and methods for drilling wellbores by ranging existing boreholes using induction devices |