| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 05/22/2007 | CA2225894C Improved sucker rod guide bearing |
| 05/18/2007 | WO2007055637A1 Method and device at rock drilling |
| 05/18/2007 | WO2007055353A1 Diameter expanding groove cutting device and expanding/contracting mechanism tool |
| 05/18/2007 | WO2007054353A2 Thread securer |
| 05/18/2007 | WO2007025210A3 Preloaded riser coupling system |
| 05/18/2007 | CA2623249A1 Diameter expanding groove cutting device and expanding/contracting mechanism tool |
| 05/17/2007 | US20070110927 Non-threaded expandable pipe connection system |
| 05/17/2007 | US20070107946 Single cone rock bit having inserts adapted to maintain hole gage during drilling |
| 05/17/2007 | US20070107945 Recoil auger with clutch bearing |
| 05/17/2007 | US20070107944 Ball-activated mechanism for controlling the operation of a downhole tool |
| 05/17/2007 | US20070107895 Solid Expandable Tubular Members Formed From Very Low Carbon Steel And Method |
| 05/17/2007 | CA2568053A1 Ball-activated mechanism for controlling the operation of a downhole tool |
| 05/16/2007 | EP1784599A1 Threaded joint for steel pipes |
| 05/16/2007 | EP1259700B1 Tracer injection in a production well |
| 05/16/2007 | CN2900763Y Nano anti-corrosion oil pumping rod |
| 05/16/2007 | CN2900762Y Gas pressurizing shock reducer |
| 05/16/2007 | CN2900761Y Flexible pressurizing shock-reducing device for drill bit |
| 05/16/2007 | CN2900760Y Pumping rod link and de-link device |
| 05/16/2007 | CN2900759Y Combined anti-bias friction oil pump rod |
| 05/16/2007 | CN1963140A Superhigh-pressure boring hose joint |
| 05/16/2007 | CN1316139C Set and method for repariring oil well casing by using iron based shape memory alloy |
| 05/15/2007 | US7217067 Riser keel joint assembly |
| 05/15/2007 | US7217056 Knuckle-swivel for drilling wells |
| 05/15/2007 | US7216727 Drilling bit for drilling while running casing |
| 05/15/2007 | US7216726 Downhole fluid-tight flexible joint |
| 05/15/2007 | US7216724 Coupling for dual member pipe |
| 05/15/2007 | US7216719 Field weldable connections |
| 05/15/2007 | US7216716 Control line manipulating arm and method of using same |
| 05/15/2007 | CA2556180C Method and apparatus for connecting a lateral branch liner to a main well bore |
| 05/15/2007 | CA2348305C Breech lock wireline connector |
| 05/15/2007 | CA2345575C Thread coupling for a drill string for percussive rock drilling |
| 05/15/2007 | CA2207755C A drilling method and bit assembly to realize the method |
| 05/10/2007 | WO2007053032A1 Vibration damper and method for installation |
| 05/10/2007 | WO2007052857A1 Auger boring machine having vibrator and boring method using the same |
| 05/10/2007 | WO2007022451A3 Retaining lines in bypass groove on downhole equipment |
| 05/10/2007 | US20070104542 Fairing for a riser |
| 05/10/2007 | US20070102927 Production by plastic expansion of a sealed tubular joint with inclined abutting surface(s) |
| 05/10/2007 | US20070102197 Drill stem for deep drillings |
| 05/10/2007 | US20070102151 Helical rod guide and method |
| 05/09/2007 | EP1781894A1 Downhole device |
| 05/09/2007 | EP1781892A1 A rock drill bit and a thread joint |
| 05/09/2007 | EP1463869B1 Driver |
| 05/09/2007 | EP1412608B1 Downhole release joint |
| 05/09/2007 | CN2898268Y Special oil-pipe anchor for screw pump |
| 05/09/2007 | CN2898263Y High-temperature dynamic stabilizer against blowout at oil-well opening |
| 05/09/2007 | CN2898262Y Sucker-rod stabilizer of supporting spiral pump |
| 05/09/2007 | CN2898261Y Direct-connected welding hollow sucker rod |
| 05/09/2007 | CN2898260Y Externally-thickened arc drill stem with transition structure |
| 05/09/2007 | CN2898259Y Jacket pipe without connected hoop |
| 05/09/2007 | CN1961133A Erosion resistant aperture for a downhole valve or ported flow control tool |
| 05/09/2007 | CN1961121A Stepped chain with sealed bulkheads for offshore platform |
| 05/09/2007 | CN1959060A Technical method for manufacturing casing collar |
| 05/09/2007 | CN1959059A Sucker rod in super II level |
| 05/09/2007 | CA2530837A1 Helical rod guide and method |
| 05/08/2007 | US7214114 Buoyancy element and module |
| 05/08/2007 | US7213657 Apparatus and methods for installing instrumentation line in a wellbore |
| 05/08/2007 | US7213655 System for connecting downhole tools |
| 05/08/2007 | CA2232748C Injection tool |
| 05/03/2007 | WO2007050161A2 Downhole tool |
| 05/03/2007 | US20070095574 Drill bit with protection member |
| 05/03/2007 | US20070095544 Side entry apparatus and method |
| 05/03/2007 | US20070095533 Reverse cementing float equipment |
| 05/03/2007 | DE112005001440T5 Umbausatz für eine modulare Steuerungsvorrichtung für ein Schlagwerkzeug Conversion kit for a modular control apparatus for an impact tool |
| 05/02/2007 | EP1517759B1 Method of manufacturing continuous sucker rod |
| 05/02/2007 | CN2895706Y Improvement of spacing type sucker rod dog centralizer |
| 05/02/2007 | CN2895705Y Sucker-rod multi-function protector |
| 05/02/2007 | CN2895704Y Opening-closing type shock-damping centralizer |
| 05/02/2007 | CN2895703Y Non-standard 250.83 mm buttress screw-thread casing-pipe joint |
| 05/02/2007 | CN2895702Y Drill-rod joint and screw-thread structure |
| 05/02/2007 | CN2895701Y Large-arc petroleum driller jointing screw thread |
| 05/02/2007 | CN2895700Y Forward-backward anti-drop sucker rod |
| 05/02/2007 | CN1955438A Sand production oil well electric pump protector |
| 05/02/2007 | CN1313699C Rock drill |
| 05/01/2007 | US7210710 Drill stem connection |
| 05/01/2007 | US7210531 Protective element for a riser segment |
| 05/01/2007 | US7210524 Perforating gun quick connection system |
| 05/01/2007 | US7210504 Assembly and method for stiffening a flexible pipe |
| 05/01/2007 | CA2517980C A pipe assembly and a method for installation in a borehole |
| 05/01/2007 | CA2417487C Downhole expandable tubing |
| 04/26/2007 | WO2007047089A1 High pressure d-tube with enhanced through tube access |
| 04/26/2007 | WO2007045850A1 Tethered buoyant support and method for installation thereof |
| 04/26/2007 | US20070090700 Device for locking a power tool and a rechargeable battery pack that is insertable in a guide of the power tool |
| 04/26/2007 | US20070089909 Mechanically modified filter cake |
| 04/25/2007 | EP1518068B1 Reinforced tubular threaded joint for improved sealing after plastic expansion |
| 04/25/2007 | EP1362159B1 Shoe with earth formation disiplacing structure |
| 04/25/2007 | EP1206623B1 Anti-rotation device for use with well tools |
| 04/25/2007 | CN2893138Y Free rotary bailing swab with centralizer |
| 04/25/2007 | CN2893129Y Sucker rod anti-eccentrically worn centralising device |
| 04/25/2007 | CN2893128Y Sucker rod centralising device |
| 04/25/2007 | CN2893127Y Hydraulic safety joint |
| 04/25/2007 | CN2893126Y Reinforced drill rod |
| 04/25/2007 | CN2893125Y Gas and foam screw drill |
| 04/25/2007 | CN1954130A Method and device for drilling holes in the ground or in rock |
| 04/25/2007 | CN1952345A 超h级防腐抽油光杆 H grade antiseptic pumping super shiny pole |
| 04/25/2007 | CN1952344A Method for making super-high-strength anti-corrosion pumping polished rod |
| 04/25/2007 | CN1312377C Apparatus and method for operating drill head from ground surface when drilling |
| 04/24/2007 | US7207400 Coupler and roof drill bit assembly using such coupler |
| 04/24/2007 | US7207398 Steerable rotary drill bit assembly with pilot bit |
| 04/24/2007 | US7207383 Multiple entrance shunt |
| 04/24/2007 | CA2390523C Apparatus for delivering a flowable substance to a remote location |