| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 09/30/2009 | CN201318132Y Drill pipe connector |
| 09/30/2009 | CN201318131Y Fully automatic quick connector for offshore oil drilling riser |
| 09/30/2009 | CN101545374A Relay transmission measurement-while-drilling system |
| 09/30/2009 | CN101545359A Reed type shedding-proof inserted pin |
| 09/29/2009 | CA2550096C Method and apparatus for friction reduction in a downhole tool |
| 09/29/2009 | CA2475428C Downhole signal communication and measurement through a metal tubular |
| 09/29/2009 | CA2418126C Couplings for rotary drill strings |
| 09/29/2009 | CA2276517C Lockable swivel apparatus and method |
| 09/24/2009 | WO2009116874A1 Coupling between wellbore tools having central transmission shafts |
| 09/24/2009 | WO2009115829A2 Flow restrictor |
| 09/24/2009 | WO2009115819A1 Stator for use in helicoidal motor |
| 09/24/2009 | WO2009115802A1 Improved centraliser |
| 09/24/2009 | WO2009115687A1 Drill packer member, drill pipe, and corresponding drill pipe string |
| 09/24/2009 | WO2009115638A1 Joint arrangement for coupling of a drill shoe |
| 09/24/2009 | WO2009115493A1 Method and apparatus for performing wireline logging operations in an under-balanced well |
| 09/24/2009 | WO2009086254A3 Communication connections for wired drill pipe joints for providing multiple communication paths |
| 09/24/2009 | US20090236098 Reinforced Polymeric Siphon Tubes |
| 09/24/2009 | US20090236091 Fiber reinforced polymer oilfield tubulars and method of constructing same |
| 09/24/2009 | US20090236090 Erosion Resistant Frac Head |
| 09/24/2009 | DE112007002516T5 Bohrwerkzeug, selbstbohrender Gesteinsanker, Bohrer, Verankerungsvorrichtung für einen selbstbohrenden Gesteinsanker, Schaft für ein Bohrwerk und Endkupplung für ein Bohrwerkzeug Drill, self-drilling rock bolt, drill, anchoring device for a self-drilling rock bolt shank for a boring and end coupling for a drilling tool |
| 09/24/2009 | CA2755500A1 Stator for use in helicoidal motor |
| 09/24/2009 | CA2718681A1 Improved centraliser |
| 09/24/2009 | CA2712670A1 Drill packer member, drill pipe, and corresponding drill pipe string |
| 09/23/2009 | EP2103960A2 Method and apparatus for determining position in a pipe |
| 09/23/2009 | EP2103775A1 Method and apparatus for performing wireline logging operations in an under-balanced well |
| 09/23/2009 | CN201314206Y Drilling rod device used for deep-hole gas drainage drilling rig |
| 09/23/2009 | CN201314205Y Oil-tube drilling-tool stabilizer |
| 09/23/2009 | CN201314204Y Centralizer used in oil pipe |
| 09/23/2009 | CN201314203Y Fully hydraulic casing centralizer with safety device |
| 09/23/2009 | CN201314202Y Technology collar of underground high-pressure GRP (glass reinforced plastic) pipe |
| 09/23/2009 | CN201314201Y Technical joint for underground high pressure FRP pipe |
| 09/23/2009 | CN201314200Y Underground glass steel pipe quick coupling |
| 09/23/2009 | CN201314199Y Deflatable water plugging and oil pumping pipe column |
| 09/23/2009 | CN101539010A Thermal-prestressed fusion casing for heavy-oil thermal recovery process, and using method thereof |
| 09/23/2009 | CN101538988A Reaming type tapered screw drill rod |
| 09/22/2009 | US7591316 Production system |
| 09/22/2009 | US7591315 Subsea riser disconnect and method |
| 09/22/2009 | US7591212 Connector for perforating gun tandem |
| 09/17/2009 | WO2009112687A1 Underwater connection installation |
| 09/17/2009 | WO2009111887A1 Wellbore drilling accelerator and tubular connection |
| 09/17/2009 | WO2009087371A4 Monitoring system for pipelines or risers in floating production installations |
| 09/17/2009 | US20090229823 Methods and apparatus for attaching accessories to sand screen assemblies |
| 09/17/2009 | US20090229817 Modular connector and method |
| 09/17/2009 | CA2717484A1 Wellbore drilling accelerator and tubular connection |
| 09/16/2009 | EP2100000A1 A connector |
| 09/16/2009 | CN201310308Y Drive-pipe centralizing device |
| 09/16/2009 | CN201310307Y Oil well rope suspending device erection and positioning device |
| 09/16/2009 | CN201310306Y Stabilizer for rotary oil pipe |
| 09/16/2009 | CN201310305Y Screw thread connecting structure of oil pipe for oil well or sleeve of gas well |
| 09/16/2009 | CN201310304Y Oil-gas casing metal sealing device |
| 09/16/2009 | CN101535592A Methods and apparatus for attenuating drillstring vibrations |
| 09/16/2009 | CN101535591A Annular electrical wet connect |
| 09/16/2009 | CN101532372A Sectional type sieve tube completion tubular column |
| 09/16/2009 | CN101532113A Anti-collapse oil casing and manufacturing method thereof |
| 09/16/2009 | CN100540843C In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
| 09/16/2009 | CN100540841C Method for water detection, out-flow and blocking for switch in production state of oil well |
| 09/16/2009 | CN100540190C Ejection mechanism of battery set and electric tool |
| 09/15/2009 | US7588393 Method for supporting top tension drilling and production risers on a floating vessel |
| 09/15/2009 | CA2557923C Expandable underreamer/stabilizer |
| 09/15/2009 | CA2525125C Limit clamp for use with casing attachments |
| 09/15/2009 | CA2524836C System and method for fail-safe disconnect from a subsea well |
| 09/15/2009 | CA2460124C Friction reducing composition and method |
| 09/15/2009 | CA2452100C Centering device |
| 09/11/2009 | WO2009109745A1 Flexible pipe fatigue monitoring below the bend stiffener of a flexible riser |
| 09/11/2009 | WO2009109010A1 Centraliser segment and centraliser |
| 09/11/2009 | WO2009092093A3 Apparatus and methods for inhibiting vortex-induced vibration |
| 09/11/2009 | WO2009065574A3 Deployment of a wireline tool |
| 09/11/2009 | CA2714302A1 Telescopic fracturing isolation sleeve |
| 09/10/2009 | US20090226263 Riser Support System For Use With An Offshore Platform |
| 09/10/2009 | US20090223714 Buffer for explosive device |
| 09/10/2009 | US20090223676 Selective Agitation |
| 09/10/2009 | US20090223669 Method and a device for solvent injection in a subsurface well |
| 09/10/2009 | US20090223666 Top drive swivel apparatus and method |
| 09/09/2009 | EP2098681A1 Downhole apparatus and method |
| 09/09/2009 | EP2098680A1 Downhole hydraulic control system |
| 09/09/2009 | EP2097610A1 Expandable reamers for earth-boring applications and methods of using the same |
| 09/09/2009 | EP1910728B1 Connection element for producing a fluid-tight screw connection, and method for the production thereof |
| 09/09/2009 | CN201306133Y Variable-nominal-diameter centralizer |
| 09/09/2009 | CN201306132Y Tripping and eccentric wear preventing centralizer of oil well pump |
| 09/09/2009 | CN201306131Y Wear-resistant device of sucker rod |
| 09/09/2009 | CN201306130Y Automatic righting and anti-abrasion device for pumping rod |
| 09/09/2009 | CN201306129Y Universal coupling for screw rod drilling tool |
| 09/09/2009 | CN201306128Y Taper pipe thread connected drilling tool |
| 09/09/2009 | CN201306127Y Double curved surface protective sucker rod coupling |
| 09/09/2009 | CN201306126Y Seam lining ring of eccentric-wear preventing tubing |
| 09/09/2009 | CN201306125Y Corrosion prevention sucker rod abrasion resistance pair |
| 09/09/2009 | CN100538149C A pipe joint lubrication device |
| 09/09/2009 | CN100537998C Spring type Y-shaped well joint |
| 09/08/2009 | US7585002 Expandable tubular connection |
| 09/08/2009 | CA2461278C Corrugated downhole tubulars |
| 09/08/2009 | CA2424124C System, method and apparatus for deploying a data resource within a threaded pipe coupling |
| 09/06/2009 | CA2658134A1 Dual string orbital drilling system |
| 09/04/2009 | CA2657012A1 Downhole hydraulic control system |
| 09/04/2009 | CA2656848A1 Force balanced stabilizer |
| 09/03/2009 | WO2009108644A1 Pressure isolation system for flexible pipe joints |
| 09/03/2009 | WO2009108642A1 Two-element tandem flexible joint |
| 09/03/2009 | WO2009108059A2 Tubular member having self-adjusting valves controlling the flow of fluid into or out of the tubular member |
| 09/03/2009 | WO2009106623A1 Threaded joint with improved resilient seal ring |
| 09/03/2009 | WO2009106449A1 Apparatus and method for making boreholes in the ground, the cross sections of which boreholes partially intersect |
| 09/03/2009 | WO2009106448A1 Apparatus and method for making boreholes in the ground, the cross sections of which boreholes partially intersect |