| Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198) |
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| 12/19/2013 | CA2875940A1 Jumper tube locking assembly and method |
| 12/19/2013 | CA2875540A1 Portable torque measurement and notification system and method of using same |
| 12/19/2013 | CA2875073A1 Shunt tube connection assembly and method |
| 12/18/2013 | EP2673456A1 Drill rig and associated drill rig traverse system |
| 12/18/2013 | EP2673455A2 Method and apparatus for facilitating hang off of multiple top tension riser or umbilicals from a compensated tensioning deck |
| 12/18/2013 | CN203347713U Automatic drill rod replacement mechanism of hydraulic drill carriage |
| 12/18/2013 | CN203347712U Rotary reducing oil pipe clamping device |
| 12/18/2013 | CN203347711U Rotary reducing oil pipe clamping device |
| 12/18/2013 | CN203347710U Manipulator for drill pipe racking |
| 12/18/2013 | CN203347709U Movable hydraulic assembling tool for under well pipe string |
| 12/18/2013 | CN203347708U Drill rod traction device for drilling construction |
| 12/18/2013 | CN103459754A Rotating control device with positive drive gripping device |
| 12/18/2013 | CN103452505A Tubular pile centering device for slant well drilling rig |
| 12/18/2013 | CN103452504A Pipe column straightening device |
| 12/18/2013 | CN103452503A Drill rod column positioning system used for rod feeding device |
| 12/18/2013 | CN103452502A Automatic transfer device for inclined-vertical shaft drilling machines and drilling tools |
| 12/18/2013 | CN103452501A Remote-control pneumatic elevator/chuck |
| 12/18/2013 | CN103452500A Device capable of preventing single lifting ring |
| 12/18/2013 | CN103452477A Environment-friendly type towed-type horizontally-oriented drilling machine |
| 12/18/2013 | CA2818611A1 Coiled tubing injector with strain relief |
| 12/17/2013 | US8608216 Elevator connector device |
| 12/17/2013 | US8608132 Fence post extractor |
| 12/17/2013 | US8607898 Force compensator for top drive assembly |
| 12/12/2013 | WO2013077905A3 Systems and methods for continuous and near continuous drilling |
| 12/12/2013 | WO2013057166A3 A floating offshore facility and a method for drilling a well |
| 12/12/2013 | WO2013015978A3 Pushing or pulling device |
| 12/12/2013 | WO2012160170A3 Wireline apparatus |
| 12/12/2013 | US20130330151 Tubular Stand Building and Racking System |
| 12/12/2013 | US20130327545 System and method utilizing frangible components |
| 12/12/2013 | US20130327543 Drilling Rig Carriage Movable Along Racks and Including Pinions Driven by Electric Motors |
| 12/12/2013 | US20130327541 Device and method for handling drill string components, as well as rock drilling rig |
| 12/12/2013 | US20130327515 Enclosed coiled tubing boat and methods |
| 12/11/2013 | EP2672058A2 Method and device for sealing the ends of drilling rod elements |
| 12/11/2013 | CN203334992U Side limiting mechanism of clamping block |
| 12/11/2013 | CN203334991U Continuous pipe roller device with cable |
| 12/11/2013 | CN203334990U Injection head device of continuous oil pipe |
| 12/11/2013 | CN203334989U Double-hydraulic-cylinder butt clamp type L-type back-up clamp assembly of top drive device |
| 12/11/2013 | CN203334988U Sucker rod back-off device |
| 12/11/2013 | CN203334987U Opening prevention linkage type hydraulic clamp safety gate |
| 12/11/2013 | CN203334986U Connecting mechanism for hydraulic power tongs and cylinder |
| 12/11/2013 | CN203334985U Sleeve and drilling tool conveying cableway device |
| 12/11/2013 | CN203334984U Safety locking device for placement of drill pipes of double-layer platform |
| 12/11/2013 | CN203334983U Automatic chuck for petroleum well repair |
| 12/11/2013 | CN203334982U Novel safe elevator pin |
| 12/11/2013 | CN203334981U Safety pin capable of preventing lift sub from dropping |
| 12/11/2013 | CN203334980U Tong head grabbing mechanism |
| 12/11/2013 | CN203334979U Beam hanger of oil pumping unit |
| 12/11/2013 | CN103443393A Remote subterranean tool activation system |
| 12/11/2013 | CN103443390A Riser for coil tubing/wire line injection |
| 12/11/2013 | CN103437725A Centering device of well-drilling tubular tool |
| 12/11/2013 | CN103437724A Pipe column supporting device for drilling platform |
| 12/11/2013 | CN103437723A Device and method for discharging drilling machine stand |
| 12/11/2013 | CN103437722A Drilling tool transporting manipulator |
| 12/11/2013 | CN103437721A Hydraulic clamping device capable of preventing impact |
| 12/11/2013 | CN103437720A Clamping device |
| 12/11/2013 | CN103437719A Pressure device of petroleum drilling machine |
| 12/11/2013 | CN103437708A Casing pipe driving head suitable for casing pipe well drilling |
| 12/11/2013 | CN103437707A Guiding and locking mechanism suitable for casing pipe driving head |
| 12/11/2013 | CN102635320B Quick arc-shaped raised-edge drill rod dismounting device and method |
| 12/11/2013 | CN102383744B Pipe arranging device for headframe |
| 12/11/2013 | CN102383721B Multi-head gripper for full-sleeve full-rotation drill |
| 12/11/2013 | CN101999029B Sonic latch mechanism |
| 12/10/2013 | US8602125 Switch arrangement for controlling operation of a motor of a power tool |
| 12/10/2013 | US8602095 Apparatus and method for extracting petroleum from underground sites using reformed gases |
| 12/10/2013 | US8601911 Tong assembly for manipulating a tubular |
| 12/08/2013 | CA2818286A1 Mobile coiled tubing unit |
| 12/05/2013 | WO2013180706A1 Auto-filling of a tubular string in a subterranean well |
| 12/05/2013 | WO2013180575A1 A die holder device for oilfield use and method for utilizing the same |
| 12/05/2013 | US20130319771 Control equipment for controlling drill rod |
| 12/05/2013 | US20130319688 Rotating casing hanger |
| 12/05/2013 | US20130319674 Rigless casing cutting/pulling stand |
| 12/04/2013 | EP2668364A2 Drill string components resistant to jamming |
| 12/04/2013 | EP2521834B1 Method and apparatus for supplying drill pipes to and removing them from a drilling apparatus |
| 12/04/2013 | CN203322023U Derrick racking platform tubing string safe self-lock hook |
| 12/04/2013 | CN203321380U Anti-impact simple device for pulling out sleeve tube |
| 12/04/2013 | CN203321379U Hydraulic tong protection device |
| 12/04/2013 | CN203321378U Drill pipe lifting mechanism |
| 12/04/2013 | CN203321377U Chain type hydraulic tubing lifting machine |
| 12/04/2013 | CN203321376U Pneumatic pipe rack with automatic control function |
| 12/04/2013 | CN203321375U Gate ramp drill stem rest platform in low-position adjustment and control |
| 12/04/2013 | CN203321374U Single-arm marine riser supporting arm |
| 12/04/2013 | CN203321373U Adjustable drill rod clamping mechanism |
| 12/04/2013 | CN203321372U Hydraulic chuck of hydraulic drilling machine |
| 12/04/2013 | CN203321371U Hydraulic drive cantilever type chuck device for installing marine riser |
| 12/04/2013 | CN203321370U Hole bottom power drilling tool high-temperature-resistant stall prevention joint |
| 12/04/2013 | CN203321369U Direct hydraulic cylinder type drill string heave compensation device |
| 12/04/2013 | CN203321368U Deep-well pump pipe elevator device |
| 12/04/2013 | CN203321367U Damping device of workover rig inflation pump |
| 12/04/2013 | CN203321366U Oil tube hook device |
| 12/04/2013 | CN203321365U Controllable sucker rod tripping device |
| 12/04/2013 | CN103429839A Control equipment for controlling drill rod |
| 12/04/2013 | CN103422822A Iron roughneck supporting device with telescopic support structure |
| 12/04/2013 | CN103422821A Stand column placing space distance adjustable finger boards |
| 12/04/2013 | CN103422820A Catwalk machine and catwalk device |
| 12/04/2013 | CN102587828B Gas extraction and drilling cooperative drilling and protecting integrated system for soft coal seams and process |
| 12/04/2013 | CN102155172B Floating clamping device for injection head of continuous oil pipe |
| 12/03/2013 | US8596346 Coal fines flocculation from produced water using oil-soluble phosphate ester |
| 12/03/2013 | US8596344 Handling device for pipes |
| 12/03/2013 | CA2351648C Well string injection system and method |
| 11/28/2013 | WO2013177585A1 Thermal release mechanism for downhole tools |