| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 02/21/2007 | CN2871797Y Sucker rod of positioning rotary wax scraping stabilizer |
| 02/21/2007 | CN1918360A Coiled tubing connector and method of manufacture |
| 02/20/2007 | US7178611 System and method for directional drilling utilizing clutch assembly |
| 02/20/2007 | US7178601 Methods of and apparatus for casing a borehole |
| 02/20/2007 | CA2452551C Protector system for fiber optic system components in subsurface applications |
| 02/20/2007 | CA2425802C Single cone rock bit having inserts adapted to maintain hole gage during drilling |
| 02/20/2007 | CA2361456C Pressure compensated disconnect system and method |
| 02/15/2007 | WO2007019319A1 Bi-directional drill string telemetry system for measurement and drilling control |
| 02/15/2007 | WO2007019292A2 Surface communication apparatus and method for use with string telemetry |
| 02/15/2007 | WO2007017574A1 Flexible tubular member (28) subsea system provided with a controllable curvature flexible pipe |
| 02/15/2007 | WO2007006963A3 Method and installation for connecting a rigid submarine pipeline and a flexible submarine pipeline |
| 02/15/2007 | US20070034381 Connector Assembly and Method of Use |
| 02/15/2007 | US20070034372 Internal release connector and method |
| 02/15/2007 | US20070034370 Downhole tool |
| 02/15/2007 | CA2847866A1 Liquid- and gas-tight threaded tubular connection |
| 02/15/2007 | CA2757380A1 Surface communication apparatus and method for use with drill string telemetry |
| 02/14/2007 | EP1752583A2 Trench wall cutting apparatus and method for building a diaphragm wall in the ground |
| 02/14/2007 | EP1751392A1 Composite marine riser |
| 02/14/2007 | CN2869819Y Non-stop on-line continuous load detection device for single-crank double-range oil pump |
| 02/14/2007 | CN2869287Y Self-locking oil pipe discharge anchor |
| 02/14/2007 | CN2869282Y Drilling land casing wellhead centralising device |
| 02/14/2007 | CN2869281Y Sucker rod centralishing device |
| 02/14/2007 | CN2869280Y Dual rolling bearing type sucker rod centralising device |
| 02/14/2007 | CN2869279Y Clip-lock type disjointing device |
| 02/14/2007 | CN2869278Y Underground anti corrosive device |
| 02/14/2007 | CN1914404A Assembly and method for stiffening a flexible pipe |
| 02/14/2007 | CN1300441C Well washing method of hierarchical water injection well and its underwell tubular column |
| 02/13/2007 | US7174975 Control systems and methods for active controlled bottomhole pressure systems |
| 02/13/2007 | US7174974 Electrically sequenced tractor |
| 02/13/2007 | US7174963 Device and a method for disconnecting a tool from a pipe string |
| 02/13/2007 | US7174958 Drill string member |
| 02/13/2007 | CA2401813C Combined casing expansion/ casing while drilling method and apparatus |
| 02/11/2007 | CA2757151A1 Reverse sliding seal for expandable tubular connections |
| 02/08/2007 | WO2007016687A1 Interface and method for wellbore telemetry system |
| 02/08/2007 | WO2007016678A2 Modular backup fluid supply system |
| 02/08/2007 | WO2007015766A1 Reinforced open-hole zonal isolation packer |
| 02/08/2007 | WO2007015647A1 Adjustable winged centering tool for use in pipes with varying diameter |
| 02/08/2007 | US20070029797 High-strength sealed connection for expandable tubulars |
| 02/08/2007 | US20070029095 Apparatus and method for running a radially expandable tubular member |
| 02/08/2007 | US20070029081 Centralizer |
| 02/08/2007 | CA2615767A1 Adjustable winged centering tool for use in pipes with varying diameter |
| 02/07/2007 | EP1749165A2 Threaded connection for oil field applications |
| 02/07/2007 | CN2866793Y Pumping well machine rod pump protector |
| 02/07/2007 | CN2866792Y Hollow rod wear resisting centering guide |
| 02/07/2007 | CN2866791Y Rope-suspension device centering positioner |
| 02/07/2007 | CN2866790Y Sucker rod rotary releasing device |
| 02/07/2007 | CN2866789Y Universal joint for rotary guiding well drilling |
| 02/07/2007 | CN1908364A Offshore oil well drilling used water insulation duct and method for testing its elastic stability |
| 02/07/2007 | CN1908363A Oil pipe and sleeve |
| 02/06/2007 | US7173542 Data relay for casing mounted sensors, actuators and generators |
| 02/06/2007 | US7172038 Well system |
| 02/06/2007 | US7172026 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 02/06/2007 | US7172025 System for lining a section of a wellbore |
| 02/06/2007 | US7172024 Mono-diameter wellbore casing |
| 02/06/2007 | US7172019 Method and apparatus for forming a mono-diameter wellbore casing |
| 02/06/2007 | CA2410124C Method and apparatus for providing plural flow paths at a lateral junction |
| 02/06/2007 | CA2281276C A thermal solvent process for the recovery of heavy oil and bitumen and in situ solvent recycle |
| 02/01/2007 | WO2007014006A1 Internal release connector and method |
| 02/01/2007 | WO2007012858A1 Steerable drilling system |
| 02/01/2007 | WO2007012673A1 Connection element for producing a fluid-tight screw connection, and method for the production thereof |
| 02/01/2007 | US20070026704 Disconnection device for a wireline |
| 02/01/2007 | US20070023204 Method and device for drilling holes in soil or rock material |
| 02/01/2007 | US20070023197 Power tool |
| 02/01/2007 | US20070023191 Method and device for the controlled disconnection of a wireline |
| 01/31/2007 | CN2864227Y Gas shock damper |
| 01/31/2007 | CN2864074Y Two-side wax scraping centralizer |
| 01/31/2007 | CN2864073Y Mining drill power head impact damping rotary mechanism |
| 01/31/2007 | CN2864072Y Wear preventive torsion loosing connector |
| 01/31/2007 | CN2864071Y Pre-perforated split leads |
| 01/31/2007 | CN1906379A Measuring device and drilling device for deep drillings |
| 01/31/2007 | CN1906374A Drill stem for deep drillings |
| 01/31/2007 | CN1904307A Improved structure of spiral anger and profiled semi screw pole body |
| 01/30/2007 | US7169480 Clad pipe |
| 01/30/2007 | US7168510 Electrical transmission apparatus through rotating tubular members |
| 01/30/2007 | US7168506 On-bit, analog multiplexer for transmission of multi-channel drilling information |
| 01/30/2007 | US7168499 Radial expansion of tubular members |
| 01/30/2007 | US7168498 Side entry apparatus and method |
| 01/30/2007 | US7168486 Apparatus comprising expandable bistable tubulars and methods for their use in wellbores |
| 01/30/2007 | CA2393420C Reamer shoe |
| 01/30/2007 | CA2389216C Tube connection |
| 01/30/2007 | CA2309942C Casing centralizer |
| 01/25/2007 | US20070018848 Electrical connection assembly |
| 01/25/2007 | US20070017572 Pipeline |
| 01/25/2007 | DE102004003481B4 Meßeinrichtung und Bohrvorrichtung für Tiefbohrungen sowie Verfahren zur Messung relevanter Daten bei Tiefbohrungen Measuring device and drilling device for deep drilling and method for measuring relevant data in deep wells |
| 01/24/2007 | EP1745233A1 Metal sleeve seal for threaded connections |
| 01/24/2007 | EP1554463B1 A measuring sonde for a hydrocarbon well |
| 01/24/2007 | CN2861453Y Wall-cleaning machine of tubing inner wall |
| 01/24/2007 | CN2861452Y Flexible sucker rod centering device |
| 01/24/2007 | CN2861451Y Wear-resisting centering guide for sucker rod |
| 01/24/2007 | CN2861450Y Torsion and wear reducing joint of flow passage type drill rod |
| 01/24/2007 | CN2861449Y Side wear prevention tubing-head of screw pump flow string |
| 01/24/2007 | CN2861448Y Short pitch sucker rod |
| 01/24/2007 | CN1902423A Production by plastic expansion of a sealed tubular joint with inclined abutting surface(s) |
| 01/24/2007 | CN1900476A Layering oil production screw pump connector and de-connector |
| 01/23/2007 | US7165892 Downhole fiber optic wet connect and gravel pack completion |
| 01/23/2007 | US7165635 Deflection swivel and method |
| 01/23/2007 | US7165634 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 01/23/2007 | US7165618 Inductively coupled method and apparatus of communicating with wellbore equipment |
| 01/23/2007 | US7165615 In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden |
| 01/23/2007 | CA2384758C Packer system |