Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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07/03/2012 | US8210265 Aluminum riser assembly |
07/03/2012 | US8210264 Subsea overload release system and method |
06/28/2012 | WO2012088102A2 Method and apparatus for milling a zero radius lateral window in casing |
06/28/2012 | WO2012087516A2 Downhole release joint with radially expandable member |
06/28/2012 | WO2012087479A1 Wet disconnect system with post disconnection pressure integrity |
06/28/2012 | WO2012087465A1 Connection assembly for through tubing conveyed submersible pumps |
06/28/2012 | WO2012085102A1 Lateral junction assembly |
06/28/2012 | US20120160510 Flexible catenary riser having distributed sag bend ballast |
06/28/2012 | US20120160508 Telescopic riser joint |
06/28/2012 | US20120160473 Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
06/28/2012 | CA2822752A1 Lateral junction assembly |
06/28/2012 | CA2822614A1 Method and apparatus for milling a zero radius lateral window in casing |
06/28/2012 | CA2822242A1 Connection assembly for through tubing conveyed submersible pumps |
06/28/2012 | CA2820221A1 Downhole release joint with radially expandable member |
06/28/2012 | CA2820220A1 Downhole release joint with radially expandable member |
06/27/2012 | EP2469012A1 Lateral junction assembly |
06/27/2012 | EP2329175B1 Flexible riser installation for carrying hydrocarbons used at great depths |
06/27/2012 | CN202284466U 一种油井注蒸汽调配管柱 One kind of steam injection wells allocate string |
06/27/2012 | CN202284453U 一种液压胀开式套管扶正短节 A hydraulic expansion of a short section of casing centralizers open |
06/27/2012 | CN202284452U 一种旋挖钻机的三级缓冲装置 Three buffer means a rotary drilling rig |
06/27/2012 | CN202284451U 稠油热采井注汽管柱防转脱丢手装置 Thermal recovery of heavy oil steam injection wells throw off hand column anti-rotation device |
06/27/2012 | CN202284450U 螺杆泵驱动用新型插接空心杆 The new plug screw driving hollow rod |
06/27/2012 | CN202284448U 杂填土层钻孔引孔钻具 Miscellaneous fill soil drilling drill hole lead |
06/27/2012 | CN1860284B Expandable wellbore assembly |
06/27/2012 | CN102518430A Method and device for evaluating properties of stratum interface near to well bottom on basis of impact method |
06/27/2012 | CN102518395A Self-propelled drilling robot |
06/27/2012 | CN102517511A Steel for high-expansion-rate petroleum casing and method for manufacturing petroleum casing |
06/27/2012 | CN102041970B Protection device for separate stratum fracturing of continuous oil pipe |
06/27/2012 | CN101535189B Treating liquids in oil extraction |
06/27/2012 | CN101449023B Threaded joint for an oil-well tubing |
06/27/2012 | CN101403282B Oil tube drilling tool stabilizer |
06/27/2012 | CN101310092B Method and device at rock drilling |
06/26/2012 | US8205693 Casing and liner drilling shoes having selected profile geometries, and related methods |
06/26/2012 | US8205691 Downhole vibration dampener |
06/26/2012 | US8205687 Compound engagement profile on a blade of a down-hole stabilizer and methods therefor |
06/26/2012 | US8205685 Housing and gearbox for drill or driver |
06/26/2012 | US8205680 Expandable connection |
06/23/2012 | CA2762198A1 Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
06/21/2012 | WO2012082779A2 Method, system and apparatus for deployment of umbilicals in subsea well operations |
06/21/2012 | WO2012082620A2 Improved alignment of downhole strings |
06/21/2012 | WO2012082301A1 Crossover joint for connecting eccentric flow paths to concentric flow paths |
06/21/2012 | WO2012081976A1 Envelope element for a pipeline, mold for manufacture thereof, and method for covering a pipeline |
06/21/2012 | WO2012080490A1 Well completion |
06/21/2012 | WO2012079299A1 Fastening piece with male thread and thread fastening component |
06/21/2012 | WO2012049506A3 Apparatus and methods for orienting, stabilising or stably operating a logging tool |
06/21/2012 | WO2012024799A3 Apparatus and method for providing a flange on a pipe |
06/21/2012 | WO2012010907A3 Cables for downhole use |
06/21/2012 | US20120155813 Composite Spoolable Tube |
06/21/2012 | US20120152620 Device and method for protecting the rock drilling machine from corrosion |
06/21/2012 | US20120152616 Perforating string with bending shock de-coupler |
06/21/2012 | US20120152615 Perforating string with longitudinal shock de-coupler |
06/21/2012 | US20120152568 Downhole Apparatus with a Swellable Support Structure |
06/21/2012 | DE102010054514A1 Fixing element and centralizer for two pairs of pipes of geothermal, has grouting hose arranged in center between pairs of pipes, where pair of pipe and grouting hose forms pipe bundle |
06/21/2012 | CA2819368A1 Crossover joint for connecting eccentric flow paths to concentric flow paths |
06/21/2012 | CA2814334A1 Well completion |
06/20/2012 | EP2466065A1 Well completion |
06/20/2012 | EP2466057A2 A downhole centraliser |
06/20/2012 | EP2464811A1 Downhole device |
06/20/2012 | CN202280432U 一种用于连接钻井钻杆的双台阶螺纹扣 A two-stage drilling drill pipe thread connection buckle |
06/20/2012 | CN202280431U 正多边形接头钻杆 Regular polygon joint drill |
06/20/2012 | CN202280430U Novel quick-connecting device for coiled tubing |
06/20/2012 | CN202280429U 废弃油井二次开发用小口径油管 Abandoned wells secondary development pipeline with a small-caliber |
06/20/2012 | CN202280428U 一种矿用除尘钻机 Ore with dust rig |
06/20/2012 | CN202280427U 一种地下孔眼扩进作业用平衡组合钻具 Expanded into an underground hole with a balanced combination of drilling operations |
06/20/2012 | CN1671943B Method for construction and completion of injection wells |
06/20/2012 | CN102505923A Shock absorber of drill string |
06/20/2012 | CN102505922A Wellhead backflow device special for oil field well completing test |
06/20/2012 | CN102505921A Water searching pipe column of open-hole horizontal well |
06/20/2012 | CN102505093A Solid expansion tube steel for open hole completion of oil and gas well and manufacturing method thereof |
06/20/2012 | CN101560874B Changeable combined layer separate-layer oil extraction technological process and separate-layer combination oil extraction process tubular column |
06/20/2012 | CN101200994B Method and apparatus for creating a borehole in the ground |
06/19/2012 | US8201645 Downhole tool string component that is protected from drilling stresses |
06/19/2012 | US8201644 Dual pipe for increased fluid flow |
06/19/2012 | US8201622 Protection sleeve |
06/19/2012 | CA2509085C Bore hole tool assembly, bearing system for use in such a bore hole tool assembly, and method of designing such a bore hole tool assembly |
06/14/2012 | WO2012078131A1 Rigid centralizer |
06/14/2012 | WO2012076850A1 Integral centralizer |
06/14/2012 | US20120145460 Vertical drilling system for controlling deviation |
06/14/2012 | US20120145410 Integral pull-through centralizer |
06/14/2012 | US20120145407 Method of connecting a flexible riser to an upper riser assembly |
06/14/2012 | US20120145405 Adjustable Riser Suspension and Sealing System |
06/14/2012 | US20120145381 Foldable Composite Tubular Structure |
06/14/2012 | US20120145380 Alignment of downhole strings |
06/14/2012 | CA2820390A1 Vibration transmission and isolation |
06/14/2012 | CA2819932A1 Resonance enhanced rotary drilling module |
06/14/2012 | CA2819304A1 Integral centralizer |
06/13/2012 | EP2463475A1 Apparatus for positioning and protecting control lines being coupled to a pipe string on a rig |
06/13/2012 | EP2462312A2 Electrical penetrator assembly |
06/13/2012 | CN202273668U 一种深层火驱采油抽汲管柱 One kind of deep thermal EOR swabbing string |
06/13/2012 | CN202273667U 一种火驱无缆式电点火管柱 One kind of fire flooding untethered electric ignition column |
06/13/2012 | CN202273629U 油井套管测压防盗油装置 Pressure oil well casing theft device |
06/13/2012 | CN202273622U 扶正式水力锚 Official Rotary hydraulic anchor |
06/13/2012 | CN202273607U 无出土螺纹钻杆 No unearthed thread drill |
06/13/2012 | CN202273606U 多功能杆管耐磨器 Multifunction rod tube wearable device |
06/13/2012 | CN202273605U 套管封隔接头密封结构 Casing packer joint sealing structure |
06/13/2012 | CN202273604U 套管自动对扣器 Casing is automatically deducted |
06/13/2012 | CN202273603U 海洋钻采导管接头防旋松结构 Ocean drilling pipe joint anti loosen structure |
06/13/2012 | CN202273602U 一种井口采油管线调节装置 One kind of adjustment device wellhead oil pipeline |
06/13/2012 | CN202273601U 一种保温接箍 Insulating Couplings |
06/13/2012 | CN202273600U 一种对开式降扭减阻接头 One kind of falling-off fitting twist drag |