| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 06/25/2008 | EP1933726A2 Flexible hollow shaft |
| 06/25/2008 | EP1664475A4 Load-resistant coaxial transmission line |
| 06/25/2008 | EP1625192A4 Resin bonded particulate anti-seize agent, lubricating system made therefrom and methods of making and using same |
| 06/25/2008 | CN201078197Y Centralizer for revolving casing cementing |
| 06/25/2008 | CN201078196Y Casing fast connect sealing device |
| 06/25/2008 | CN201078195Y Hollow sucker rod |
| 06/25/2008 | CN201078194Y Improved stem |
| 06/25/2008 | CN101205804A Magnetic-heat wax preventing device for oil production |
| 06/25/2008 | CN101205798A Mining drill rod anti-skid clamp holder |
| 06/25/2008 | CN101205599A Surface alloy coating hot-spraying technique for JHFZ alloy smooth sucker rod |
| 06/25/2008 | CN100396879C Alarm apparatus for engine lock type drill rod misoperation |
| 06/24/2008 | US7390032 Tubing joint of multiple orientations containing electrical wiring |
| 06/24/2008 | US7389818 Method and device by a displacement tool |
| 06/19/2008 | WO2008005192A3 System and method for hard line communication with mwd/lwd |
| 06/19/2008 | US20080142266 Tension/collar/reamer assemblies and methods |
| 06/19/2008 | US20080142244 Cables |
| 06/19/2008 | US20080142227 Wellbore method and apparatus for completion, production and injection |
| 06/18/2008 | EP1933003A1 Steerable bit assembly and methods |
| 06/18/2008 | CN201074491Y Horizontal reinforcement card-dispelling tubular pile |
| 06/18/2008 | CN201074489Y Mill sleeve card-dispelling tubular pile for continuous tubing drill |
| 06/18/2008 | CN201074484Y Protector for righting sucker rod |
| 06/18/2008 | CN201074483Y Centralizer for prevent horizontal well oil tube from blocking and reducing friction |
| 06/18/2008 | CN201074482Y Connection structure for sealing pipeline of circular ring and conus |
| 06/18/2008 | CN201074481Y Seat sleeve special for sleeve welldrilling |
| 06/18/2008 | CN101200999A Highly effective insulated tube coupling |
| 06/18/2008 | CN101200994A Method and apparatus for creating a borehole in the ground |
| 06/18/2008 | CN100395474C Sealing method, sealing connection mechanism, sealing mechanism and sealing |
| 06/18/2008 | CN100395464C Device for coating lubricant on inner hole of pipe |
| 06/17/2008 | US7389205 Oilfield equipment identification method and apparatus |
| 06/17/2008 | US7387469 Bend stiffener |
| 06/17/2008 | US7387167 Insulating device and assembly |
| 06/17/2008 | CA2492614C Blast joint swivel for wellhead isolation tool and method of using same |
| 06/17/2008 | CA2457705C Quick connection for tubulars |
| 06/17/2008 | CA2450337C Providing electrical isolation for a downhole device |
| 06/17/2008 | CA2370186C Method and multi-purpose apparatus for control of fluid in wellbore casing |
| 06/17/2008 | CA2330963C Heavy weight drill pipe |
| 06/17/2008 | CA2310009C Improvements in or relating to downhole tools |
| 06/17/2008 | CA2259719C Fiber optic well logging cable |
| 06/12/2008 | WO2008070193A2 Perforating gun assembly with auger to control wellbore fluid dynamics |
| 06/12/2008 | WO2008070038A1 Expandable reamers for earth-boring applications and methods of using the same |
| 06/12/2008 | WO2008068385A1 Arrangement and method for drilling |
| 06/12/2008 | WO2007092375A3 Housing and gearbox for drill or driver |
| 06/12/2008 | US20080134775 Apparatus and methods for obtaining measurements below bottom sealing elements of a straddle tool |
| 06/11/2008 | WO2008132513A1 A device and method for suppressing vortex-induced vibrations |
| 06/11/2008 | EP1261448B1 Method of assembling pipe joints |
| 06/11/2008 | CN201071711Y Drill-free blind plate |
| 06/11/2008 | CN201071695Y Shock dispelling clip tubular pole for near clip point of continuous oil pipe |
| 06/11/2008 | CN201071688Y Ball type centralizer |
| 06/11/2008 | CN201071687Y Hydraulic reducing centralizer |
| 06/11/2008 | CN201071686Y Anti-corrosion oil pipe and connecting mechanism |
| 06/11/2008 | CN201071685Y Abrasion-proof belt structure for petroleum drill lever joint |
| 06/11/2008 | CN101196115A Construction method and device for high pressure underground gas storing well |
| 06/11/2008 | CN101196102A Improved special-shaped semi-screw pile and jackrod structure |
| 06/11/2008 | CN101196101A Adjustable multifunctional creep grinding device of power measuring suite |
| 06/10/2008 | US7384077 Coupling apparatus |
| 06/10/2008 | US7383898 Inner and outer motor with eccentric stabilizer |
| 06/10/2008 | US7383885 Floatation module and method |
| 06/10/2008 | US7383881 Stabiliser, jetting and circulating tool |
| 06/10/2008 | CA2327074C Assembly comprising pump rod and threaded union |
| 06/05/2008 | WO2008067154A2 Expandable wellbore liner |
| 06/05/2008 | WO2008064384A1 Device for percussion drilling or rotary percussion drilling in rocky material |
| 06/05/2008 | US20080128168 Apparatus and Method |
| 06/05/2008 | US20080128140 Methods and apparatus for wellbore construction and completion |
| 06/05/2008 | DE102006056663A1 Screw-coupling for boring tools, has axial outside-threaded boring tool end in which corresponding inside-threaded boring tool end is allowed to be inserted |
| 06/04/2008 | EP1926883A1 Earth boring drill bits with casing component drill out capability, cutting elements for same, and methods of use |
| 06/04/2008 | EP1646765B1 Electrical imaging in conductive and non-conductive mud |
| 06/04/2008 | CN201068759Y Shocking reversing stuck freeing salvaging pipe column |
| 06/04/2008 | CN201068758Y Reversing drill bumper jar shocking anti-stuck pipe column |
| 06/04/2008 | CN201068757Y Shocking reversing stuck freeing salvaging pipe column |
| 06/04/2008 | CN201068755Y Safe joint for horizontal well great pitch and horizontal segment salvaging construction |
| 06/04/2008 | CN201068752Y Composite driven stuck-freeing pipe column for drilling, abrasion, milling |
| 06/04/2008 | CN201068744Y Small mouse hole centralizer |
| 06/04/2008 | CN201068743Y Upright post tumbling cylinder booster unit |
| 06/04/2008 | CN201068742Y Blowout prevention on-off connector |
| 06/04/2008 | CN201068741Y Hexagonal bore rod |
| 06/03/2008 | US7380605 Energy transfer loop apparatus and method of installation |
| 06/03/2008 | US7380596 Downhold disconnect safety joint |
| 06/03/2008 | US7380593 Expandable tubes with overlapping end portions |
| 06/03/2008 | CA2501599C Method and apparatus for installing control lines in a well |
| 06/03/2008 | CA2475957C Multi-point high pressure seal for expandable tubular connections |
| 06/03/2008 | CA2358663C Electrically controlled release device |
| 06/03/2008 | CA2321073C Riser pipe construction and module therefor |
| 05/29/2008 | WO2008064233A2 Perforating gun assembly with auger to control wellbore fluid dynamics |
| 05/29/2008 | WO2008062212A1 A connector |
| 05/29/2008 | WO2008062187A1 Downhole apparatus and method |
| 05/29/2008 | WO2008062177A1 Down hole apparatus and method |
| 05/29/2008 | WO2008062094A1 Drilling apparatus |
| 05/29/2008 | US20080121435 Single cone rock bit having inserts adapted to maintain hole gage during drilling |
| 05/29/2008 | US20080121396 Completion apparatus and methods for use in hydrocarbon wells |
| 05/29/2008 | US20080121174 Pipe Joint Lubrication Device |
| 05/29/2008 | CA2674362A1 Perforating gun assembly with auger to control wellbore fluid dynamics |
| 05/29/2008 | CA2670364A1 A connector |
| 05/29/2008 | CA2668677A1 Downhole apparatus and method |
| 05/29/2008 | CA2668590A1 Downhole apparatus and method |
| 05/28/2008 | EP1706583B1 High-strength sealed connection for expandable tubulars |
| 05/28/2008 | CN201065741Y Rotary drill rod damage-proof device |
| 05/28/2008 | CN201065740Y High-intensity anti-theft casing short joint |
| 05/28/2008 | CN201065739Y Elastic elliptical pin |
| 05/28/2008 | CN201065738Y Rotary drill rod with diameter-variable nozzle on extremely internal section rod |
| 05/28/2008 | CN201065737Y Rotary dredging driller friction type drill rod preventing impacting of power head |