| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 09/29/2011 | US20110232895 Well tool with connectors and adapted for use with power tongs |
| 09/29/2011 | CA2794346A1 Pressure controlled well construction and operation systems and methods usable for hydrocarbon operations, storage and solution mining |
| 09/28/2011 | CN201991498U 一种井下过泵加重抽油装置 A downhole pumping equipment through the pump heavier |
| 09/28/2011 | CN201991483U 适用于封隔器分层加砂压裂的管柱结构 String structure suitable for packer stratified sand fracturing of |
| 09/28/2011 | CN201991463U 缠绕钻杆 Wound drill |
| 09/28/2011 | CN201991462U 铸钢双螺纹钻杆 Cast double threaded drill |
| 09/28/2011 | CN201991461U 一种变径变距打桩机螺旋钻杆 One kind of adjustable pitch spiral drill hammers |
| 09/28/2011 | CN201991460U 管线、法兰错位扶正器 Pipelines, flanges dislocation centralizer |
| 09/28/2011 | CN201991459U 螺杆减阻器 Screw drag reduction device |
| 09/28/2011 | CN201991458U 镶嵌非晶态合金耐磨带螺杆钻具扶正器 Mosaic amorphous alloy screw drill centralizer hardband |
| 09/28/2011 | CN201991457U 一种抽油机光杆校正装置 One kind of pumping light pole correction device |
| 09/28/2011 | CN201991456U 锁块脱接器 Locking block off connector |
| 09/28/2011 | CN201991455U 钻完井专用导向柔性筛管 Drilling and Completion dedicated guide the flexible screen |
| 09/28/2011 | CN201991454U 一种提高连接强度的套管 Method for improving the connection strength of the sleeve |
| 09/28/2011 | CN201991453U 一种改进的钻井套管 An improved well casing |
| 09/28/2011 | CN201991452U 锚索钻杆 Anchor drill |
| 09/28/2011 | CN201991451U 高强度复合管 High-strength composite pipe |
| 09/28/2011 | CN201991450U 一种钻井套管以及管箍 One kind of well casing and pipe clamps |
| 09/28/2011 | CN201991449U 两端材质及结构层改变的特种油井管 Both ends of the material and structural changes in the special layer OCTG |
| 09/28/2011 | CN201991448U 一种滑销式钻杆 One kind of sliding pin-type drill |
| 09/28/2011 | CN201991447U 双级热采光杆 Two-stage heat lighting rod |
| 09/28/2011 | CN201991435U 一种形成环形孔的现浇筒桩旋挖钻机 A method of forming an annular hole situ tubular piles Rotary Drilling Rig |
| 09/28/2011 | CN1961133B Case of downhole tool with aperture |
| 09/28/2011 | CN102203375A Well flow control systems and methods |
| 09/28/2011 | CN102202963A Buoyancy device for marine structures |
| 09/28/2011 | CN102200007A Method for designing annular fracturing injection cross joint |
| 09/28/2011 | CN102200003A Pumping rod oil-increasing rotary wax scraping centralizer |
| 09/28/2011 | CN102199995A Process for producing high-precision special threaded sleeve pipe coupling |
| 09/28/2011 | CN102199991A Drilling-fixing integrated device and method for yolk coal terrane |
| 09/28/2011 | CN101864542B Steel for high-frequency resistance straight weld oil well pipe and production method thereof |
| 09/27/2011 | US8025107 Reamer with polycrystalline diamond compact inserts |
| 09/27/2011 | US8025024 Pipe joint lubrication device |
| 09/27/2011 | CA2502727C Large diameter flush-joint pipe handling system |
| 09/27/2011 | CA2494871C Drill pipe having an internally coated electrical pathway |
| 09/27/2011 | CA2478594C Double shoulder oilfield tubular connection |
| 09/27/2011 | CA2450751C Method for preparing wellbore casing for installation |
| 09/22/2011 | WO2011071901A3 Dissolvable tool and method |
| 09/22/2011 | WO2011061502A3 Swellable connection system and method of using the same |
| 09/22/2011 | US20110226484 Connector for steel catenary riser to flexible line without stress-joint or flex-joint |
| 09/22/2011 | US20110226468 Offset joint for downhole tools |
| 09/22/2011 | CA2734622A1 Connector |
| 09/21/2011 | EP2366865A2 Offset joint for downhole tools |
| 09/21/2011 | EP2366075A1 Tubular connection with self-locking threading used in the oil industry |
| 09/21/2011 | EP2366074A1 Sealed tubular connection used in the oil industry, and method for producing said connection |
| 09/21/2011 | CN201982074U 防堵低剪切配注器 Attempts to prevent low shear with Dispenser |
| 09/21/2011 | CN201982037U 井下管柱冲砂解堵一体化装置 Downhole string red sand plugging Integrated Device |
| 09/21/2011 | CN201982036U 立根扶正装置 Rooted righting device |
| 09/21/2011 | CN201982027U 一种手电钻钻头的专用钻杆装置 Dedicated hand drill drill drill apparatus |
| 09/21/2011 | CN201982026U 抽油机井口调偏装置 Pumping wellhead detuning device |
| 09/21/2011 | CN201982025U 高耐磨性整体浇注式抽油杆防磨器 High wear resistance is the whole cast type rod wear |
| 09/21/2011 | CN201982024U 气井用套管气密封螺纹接头 Gas well casing hermetically sealed with a threaded joint |
| 09/21/2011 | CN201982023U 螺旋钻杆注浆转换器 Spiral drill pipe grouting converter |
| 09/21/2011 | CN201982022U 安全焊接泄压导流管 Safety relief diversion pipe welding |
| 09/21/2011 | CN201982006U 一种旋轮线型面连接的凿岩机转钎机构 One kind of rotary drilling machine connected linear surface turn brazing agency |
| 09/21/2011 | CN201982003U 偏心轮推杆滚柱活齿内齿轮齿廓型面连接的凿岩转钎机构 Roller putter eccentric gear tooth profile of the inner surface drilling solder connections turn institution |
| 09/21/2011 | CN201982002U 一种高阶椭圆型面连接的凿岩机转钎机构 One kind of high-order elliptic surface drill rigs turn connected brazing agency |
| 09/21/2011 | CN201981540U 预制管桩清孔工具 Precast Pipe Chiang Khong Tools |
| 09/21/2011 | CN1975094B Steel pipe for burying and expansion and burying method of oil well steel pipe |
| 09/21/2011 | CN102191923A Long-distance control wellhead operation device for workover operation |
| 09/21/2011 | CN102191922A Tubular column migration and centralizing device for drilling machine |
| 09/21/2011 | CN102191921A Wear-resisting sheath structure for drill stem |
| 09/21/2011 | CN102191920A Rotary wear-resisting pumping-aid apparatus for pumping rod |
| 09/21/2011 | CN102191919A Thermal compensation oil casing joint |
| 09/21/2011 | CN102191918A Offset joint for downhole tools |
| 09/21/2011 | CN102191917A Ridge tooth universal shaft |
| 09/21/2011 | CN102191916A Anti-sticking high-sealability high-load oil well pipe and drilling tool thread |
| 09/21/2011 | CN102191442A Steel for marine riser flange of marine deepwater drilling and manufacturing method of marine riser flange |
| 09/21/2011 | CN102191435A Non-carbide bainite steel heavy drill rod |
| 09/21/2011 | CN102190893A Soluble material special for oil field centralizer and preparation method thereof |
| 09/21/2011 | CN101613833B Ni-based alloy oil sleeve manufacturing method for high-acidity deep well |
| 09/21/2011 | CN101210480B Four-in-one drilling tool |
| 09/20/2011 | US8020634 Method and apparatus for supporting a downhole component in a downhole drilling tool |
| 09/20/2011 | CA2577645C Energizing seal for expandable connections |
| 09/20/2011 | CA2550480C Depth control in coiled tubing operations |
| 09/20/2011 | CA2535372C Locking device for built pipe connections |
| 09/20/2011 | CA2475602C System for forming a window and drilling a sidetrack wellbore |
| 09/20/2011 | CA2473424C Drill string tool with bearing sleeve |
| 09/16/2011 | CA2734045A1 Offset joint for downhole tools |
| 09/15/2011 | WO2011112275A1 Wear pad adjustment assembly |
| 09/15/2011 | WO2011110813A2 Cablehead |
| 09/15/2011 | WO2011056162A3 A multifunctional screw drill and reaming device |
| 09/15/2011 | WO2009155249A4 Extrusion-resistant nose seal |
| 09/15/2011 | US20110220415 Ultra-low friction coatings for drill stem assemblies |
| 09/15/2011 | US20110220379 Housing and gearbox for drill or driver |
| 09/15/2011 | US20110220348 Coated Oil and Gas Well Production Devices |
| 09/15/2011 | US20110220000 Facility for using fluid in a stretch of water, and associated assembly method |
| 09/15/2011 | DE102010010850A1 Cladding for use as thermal standpipe insulation for standpipes and injection pipes in deep holes, has waterproof coaxial steel cladding, which is filled with flowable granular, permeable and porous material |
| 09/15/2011 | DE102010010637A1 Drilling equipment for drilling ground holes into building, has transverse bore running transverse to axis of tool, drive cultivated at kelly bar or at intermediate piece or at tool, and bolt moved out from bore by drive |
| 09/14/2011 | EP2365136A1 Offshore installation and method for connecting cabling and/or piping thereto |
| 09/14/2011 | EP2364412A1 Armour reinforcement |
| 09/14/2011 | CN201972647U 自润滑注气防喷井口密封器 Self-lubricating gas injection wellhead blowout preventer sealer |
| 09/14/2011 | CN201972637U 一种取心工具安全接头 One kind of safety joint coring tool |
| 09/14/2011 | CN201972629U 一种钻杆螺纹结构 One kind of drill pipe thread structure |
| 09/14/2011 | CN201972628U 空心抽油杆减磨装置 Hollow rod by grinding apparatus |
| 09/14/2011 | CN201972627U 嵌装卡扣式抽油杆扶正器 Fitted snap-rod stabilizer |
| 09/14/2011 | CN201972626U 取心工具内筒扶正器 Inner tube coring tool centralizer |
| 09/14/2011 | CN201972625U 旋转式抽油杆扶正器 Rotary rod centralizer |
| 09/14/2011 | CN201972624U 抽油杆扶正器 Sucker rod centralizer |
| 09/14/2011 | CN201972623U 凿岩钎杆钎肩保护套 Rock drill rod borer shoulder protector |
| 09/14/2011 | CN201972622U 一种大位移井减阻减扭工具 One kind of twisted reach wells minus the drag reduction tool |