| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 02/03/2010 | CN201396085Y Internal spraying bowl-lifting drill pipe filter |
| 02/03/2010 | CN201396082Y Screw pump protecting rod type centralizer |
| 02/03/2010 | CN201396081Y Centralizer |
| 02/03/2010 | CN201396080Y Centralizer |
| 02/03/2010 | CN201396079Y Bit pressure measuring pipe nipple for core drilling |
| 02/03/2010 | CN201396078Y Combined type flow increasing connector for offshore oil-drilling marine riser |
| 02/03/2010 | CN201396077Y Hollow oil pumping rod |
| 02/03/2010 | CN201396076Y Pneumatic backcycling drill tool for fixing hole |
| 02/03/2010 | CN201396069Y Anti-deviation combined drill tool for well drilling at deviation-prone stratum |
| 02/03/2010 | CN201396067Y Down-hole drilling tool for increasing mechanical drilling rate of slim holes |
| 02/03/2010 | CN101638978A Well drilling centralizer |
| 02/03/2010 | CN101638977A Sectional combined double hollow oil pumping rod |
| 02/02/2010 | US7654345 Wear resistant sub assembly |
| 02/02/2010 | US7654344 Torque converter for use when drilling with a rotating drill bit |
| 02/02/2010 | US7654341 Drill stem coupling and method for a directional drill |
| 02/02/2010 | US7654316 Downhole connector |
| 02/02/2010 | CA2499760C Reverse circulation directional and horizontal drilling using concentric coil tubing |
| 02/02/2010 | CA2454409C Wear resistant tubular connection |
| 02/02/2010 | CA2428333C Knuckle-swivel for drilling wells |
| 02/01/2010 | CA2638497A1 Apparatus |
| 01/28/2010 | WO2010010500A1 An improved seawater suction system |
| 01/28/2010 | US20100019886 Oilfield equipment identification method and apparatus |
| 01/28/2010 | US20100018772 Articulated extraction pipe |
| 01/28/2010 | US20100018715 Offshore universal riser system |
| 01/28/2010 | US20100018703 System and Methods Using Fiber Optics in Coiled Tubing |
| 01/28/2010 | US20100018701 Apparatus and method for detecting poor hole cleaning and stuck pipe |
| 01/28/2010 | US20100018700 Laminate Pressure Containing Body for a Well Tool |
| 01/28/2010 | US20100018699 Low Stress Threadform with a Non-conic Section Curve |
| 01/28/2010 | US20100018698 Tubing centralizer |
| 01/28/2010 | US20100018697 Securement of Lines to Well Sand Control Screens |
| 01/28/2010 | US20100018696 Downhole tool |
| 01/27/2010 | EP2147185A1 Pipe coupling |
| 01/27/2010 | EP2147184A2 Porous tubular structures |
| 01/27/2010 | CN201391331Y Integral in-hole drilling tool for drilling slotting punched hole of coal seam |
| 01/27/2010 | CN201391310Y Transforming hoop |
| 01/27/2010 | CN201391270Y Water pressure test packing device for drill holes with conventional diameter |
| 01/27/2010 | CN201391250Y Drilling tool with high torque and long spiral drill pipe |
| 01/27/2010 | CN201391249Y Dual-drive low-spiral drill rod |
| 01/27/2010 | CN201391248Y Screw drill sealing-ball-column hinge universal shaft |
| 01/27/2010 | CN201391247Y Anti-eccentric wear centering device used for automatic correcting combined type pumping rod |
| 01/27/2010 | CN201391246Y Flexible drilling tool stabilizer for gas drilling |
| 01/27/2010 | CN201391245Y Underground logging centralizer |
| 01/27/2010 | CN201391244Y Oil pipe anti-eccentric wearing rotator |
| 01/27/2010 | CN201391243Y 喷枪扶正器 Gun centralizer |
| 01/27/2010 | CN201391242Y Sucker rod protector of oil pipe |
| 01/27/2010 | CN201391241Y Sucker rod anti-destabilization compensator |
| 01/27/2010 | CN201391240Y Buttress thread oil pipe coupling |
| 01/27/2010 | CN201391239Y Connection coupling of torque ledge overlaying anti-corrosion alloy sealed by sealing ring |
| 01/27/2010 | CN201391238Y Special device for breakouting pack of dynamite of drill pipe |
| 01/27/2010 | CN201391237Y Sucker rod bypass pipe nipple |
| 01/27/2010 | CN201391236Y Gapless connector of upper link rod joint of pumping unit |
| 01/27/2010 | CN201391235Y Asymmetric special-section drill rod |
| 01/27/2010 | CN201391228Y High wear resistance bent housing of screw drill |
| 01/27/2010 | CN201391226Y Anti-dropping alarm device of screw drill |
| 01/27/2010 | CN201391223Y Multi-shaft long screw occlusion drill |
| 01/27/2010 | CN100585093C Pile machine having drilling function and drilling static pressure method |
| 01/26/2010 | US7651137 Insulated pipe joint |
| 01/26/2010 | US7650952 Passive vertical drilling motor stabilization |
| 01/26/2010 | US7650947 One trip system for circulating, perforating and treating |
| 01/26/2010 | US7650946 Disconnect apparatus and method |
| 01/26/2010 | CA2567339C Drill string fitting |
| 01/26/2010 | CA2468545C Downhole assembly releasable connection |
| 01/24/2010 | CA2668263A1 Monopole acoustic transmitter ring comprising piezoelectric material |
| 01/21/2010 | WO2010008956A2 Pressure orienting swivel |
| 01/21/2010 | WO2010007225A1 Underwater hydrocarbon transport apparatus |
| 01/21/2010 | WO2010006357A1 Borehole casing centraliser |
| 01/21/2010 | WO2009146010A3 Casing stabbing guide |
| 01/21/2010 | US20100012379 Joint for use in back reaming |
| 01/21/2010 | US20100012317 Rcd hydraulic stripping adapter |
| 01/21/2010 | CA2724571A1 Pressure orienting swivel |
| 01/20/2010 | EP2146047A2 Disconnect device |
| 01/20/2010 | EP2145075A2 Rod coupling comprising a sacrificial element |
| 01/20/2010 | EP2145074A1 Device for releasably connecting a core drill bit to a drill string |
| 01/20/2010 | EP2145073A1 Boring system |
| 01/20/2010 | EP1295008B1 Composite centraliser |
| 01/20/2010 | CN201386517Y Clamp type centralizer |
| 01/20/2010 | CN201386516Y Pumping unit polished rod deviation adjusting device |
| 01/20/2010 | CN201386515Y Wellhead tubing centralizer |
| 01/20/2010 | CN201386514Y Magnetic inductive signal transmission petroleum tool joint |
| 01/20/2010 | CN201386513Y Core barrel joint |
| 01/20/2010 | CN201386507Y Rotary blocking type hydraulic power pulse well-drilling tool |
| 01/20/2010 | CN201386506Y Multi-station rat hole device |
| 01/20/2010 | CN101631929A A connector |
| 01/20/2010 | CN101629476A High strength and high toughness petroleum casing pipe capable of bearing low temperature within -40 to -80 |
| 01/19/2010 | US7649357 Side entry leak protection for downhole tools |
| 01/19/2010 | US7648176 Pipe joint |
| 01/19/2010 | US7647977 Borehole liner |
| 01/19/2010 | US7647963 Interconnect rod for sucker rod string |
| 01/19/2010 | US7647948 Composite spoolable tube |
| 01/19/2010 | CA2516649C Drill shoe |
| 01/19/2010 | CA2510081C Drilling with casing |
| 01/19/2010 | CA2475425C Downhole signal communication and measurement through a metal tubular |
| 01/19/2010 | CA2397335C Bearing assembly for mud motor |
| 01/14/2010 | WO2010005711A1 Latch system for friction-locked tubular members |
| 01/14/2010 | US20100006340 Downhole reservoir effluent column pressure restraining apparatus and methods |
| 01/14/2010 | US20100005643 Tubing connection arrangement |
| 01/13/2010 | EP2143875A2 Multi-purpose float |
| 01/13/2010 | EP2142836A1 Pressure isolation system for flexible pipe joints |
| 01/13/2010 | EP2142751A2 Rod coupling comprising a pin |
| 01/13/2010 | EP1982040B1 Improved shoe |