| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 07/14/2011 | WO2011083268A1 Assembly for supporting at least one fluid transport pipe through an expanse of water, and associated facility and method |
| 07/14/2011 | WO2011049733A3 Instrumented disconnecting tubular joint |
| 07/14/2011 | US20110170320 Transmitting electric power into a bore hole |
| 07/14/2011 | US20110168443 Bitless Drilling System |
| 07/14/2011 | US20110168399 Mid water gas lift |
| 07/14/2011 | US20110168388 Borehole casing centraliser |
| 07/14/2011 | US20110168382 Leak Detection Method for a Rotating Control Head Bearing Assembly and its Latch Assembly using a Comparator |
| 07/14/2011 | DE112009002144T5 Elektrische Übertragung zwischen rotierenden und nicht rotierenden Elementen Electric transmission between rotating and non-rotating elements |
| 07/14/2011 | CA2786343A1 Downhole tool releasing mechanism |
| 07/13/2011 | EP2342488A2 Method for assembling an operating rig for a fluid in a body of water and associated operating rig |
| 07/13/2011 | EP2342419A1 Cement head |
| 07/13/2011 | CN201896593U Oil sleeve connector preventing excessive twisting and sticking |
| 07/13/2011 | CN201896592U Hexagonal safe joint |
| 07/13/2011 | CN201896591U Rotating connector used for telescopic drill stem |
| 07/13/2011 | CN201896590U Power drill capable of bearing hanging load |
| 07/13/2011 | CN201896589U Water stop device and sleeve device |
| 07/13/2011 | CN201896588U Sucker rod |
| 07/13/2011 | CN201896584U Well drilling corrector |
| 07/13/2011 | CN201896583U Hold angle type hydraulic rotary-percussion device |
| 07/13/2011 | CN102121395A Method for integrated comprehensive management of gas in low-permeability single coal bed |
| 07/13/2011 | CN102121356A Helical strake vortex induced vibration inhibiting device |
| 07/13/2011 | CN102121355A Heat-insulating oil tube connecting structure of which user end of pipe-end inner pipe is welded fixedly |
| 07/13/2011 | CN102121354A Heat-insulating oil tube connecting structure of which factory end of pipe-end inner pipe is welded fixedly |
| 07/13/2011 | CN102121353A Split assembly heat-insulating oil pipe connecting structure |
| 07/13/2011 | CN102121352A System for automatically recognizing lengths of drill rods |
| 07/13/2011 | CN102121349A High-order elliptic profile connected hammer drill rotational mechanism |
| 07/13/2011 | CN101328559B Steel for low yield ratio petroleum case pipe, petroleum case pipe and manufacturing method thereof |
| 07/12/2011 | US7975541 Folding ultrasonic borehole imaging tool |
| 07/12/2011 | CA2517407C Washpipe seal assembly |
| 07/07/2011 | WO2011079845A1 An unbonded, flexible pipe |
| 07/07/2011 | WO2011079391A1 Wellbore treatment apparatus and method |
| 07/07/2011 | WO2011044028A3 Oilfield operation using a drill string |
| 07/07/2011 | WO2011037595A3 Method and apparatus for determining locations of multiple casings within a wellbore conductor |
| 07/07/2011 | WO2011016933A3 Method and apparatus for providing a conductor in a tubular |
| 07/07/2011 | WO2010032018A3 Apparatus for use in top filling of tubulars and associated methods |
| 07/07/2011 | WO2010029322A3 A riser connector |
| 07/07/2011 | US20110162887 Inserting and extracting underground sensors |
| 07/07/2011 | US20110162853 Method and apparatus for the dampening of shocks in the borehole of wells |
| 07/07/2011 | CA2785713A1 Wellbore treatment apparatus and method |
| 07/07/2011 | CA2785256A1 An unbonded, flexible pipe |
| 07/06/2011 | EP2340350A2 Downhole device actuator and method |
| 07/06/2011 | EP2340349A1 Method for lightening a riser with optimized wearing piece |
| 07/06/2011 | CN201891427U Dust removal system for pneumatic dry drilling |
| 07/06/2011 | CN201891403U Thermal recovery polished rod sealing device |
| 07/06/2011 | CN201891393U Eccentric wear prevention ball centralizer |
| 07/06/2011 | CN201891392U Four-arm and dual-roller centralizer |
| 07/06/2011 | CN201891391U Sealing connecting structure for high-pressure water delivering drill rod |
| 07/06/2011 | CN201891390U Multifunctional protection section hoop |
| 07/06/2011 | CN102116168A Gas drainage system and method for hyposmosis soft coal seams |
| 07/06/2011 | CN102116136A Reverse circulation drill and gripper for same |
| 07/06/2011 | CN102116135A Looseness-proof high-air tightness connecting structure with threaded sleeves |
| 07/06/2011 | CN102116134A Tubing coupling with high corrosion resistance and high leakage resistance |
| 07/06/2011 | CN102116133A Flange mechanism |
| 07/05/2011 | US7971661 Motor bit system |
| 06/30/2011 | WO2011078683A2 Pipe coupling devices and a method for the use thereof |
| 06/30/2011 | WO2011078658A1 Wellbore pipe protection device |
| 06/30/2011 | WO2011076868A1 Connecting head for connecting a cable and a downhole tool and associated intervention device |
| 06/30/2011 | WO2011076847A1 Drilling a borehole and hybrid drill string |
| 06/30/2011 | WO2011076846A1 Method of drilling and jet drilling system |
| 06/30/2011 | WO2011076350A2 Galling-resistant threaded tubular component, and process for coating said component |
| 06/30/2011 | WO2011076349A2 Set for obtaining a threaded connection, method for making up and breaking out said connection, and use of said connection in a riser |
| 06/30/2011 | WO2011041305A3 Line retention arrangement and method |
| 06/30/2011 | WO2011026897A3 Telescopic riser joint |
| 06/30/2011 | US20110155473 Stabilizing system and methods for a drill bit |
| 06/30/2011 | US20110155471 Drive pin support |
| 06/30/2011 | US20110155470 drill string element with instruments |
| 06/30/2011 | US20110155388 Slip Connection with Adjustable Pre-Tensioning |
| 06/30/2011 | US20110155383 Offshore seabed to surface conduit transfer system |
| 06/30/2011 | CA2785466A1 Galling-resistant threaded tubular component, and process for coating said component |
| 06/30/2011 | CA2785141A1 Drilling a borehole and hybrid drill string |
| 06/30/2011 | CA2785082A1 Set for obtaining a threaded connection, method for making up and breaking out said connection, and use of said connection in a riser |
| 06/30/2011 | CA2784978A1 Method of drilling and jet drilling system |
| 06/29/2011 | EP2339107A2 Drilling device with telescopic auger, adapter piece and drilling method for drilling |
| 06/29/2011 | EP2337923A1 Flexible pipe |
| 06/29/2011 | CN201884018U Steam injection string for heavy oil wells |
| 06/29/2011 | CN201883962U Plasma-clad wear-resistant spiral drill stem |
| 06/29/2011 | CN201883961U Mine intrinsically safe pack alarm |
| 06/29/2011 | CN201883960U Variable diameter drill collar |
| 06/29/2011 | CN201883959U Ceramic lined tubing end head protection bush structure |
| 06/29/2011 | CN201883958U Centralizer |
| 06/29/2011 | CN201883957U Antitheft clamp |
| 06/29/2011 | CN201883956U Glass reinforced plastic downhole pup joint for oil pipe hanger |
| 06/29/2011 | CN201883955U Novel prestressed heat-insulating tubing |
| 06/29/2011 | CN201883954U Coal-bed core-taking drilling rod |
| 06/29/2011 | CN201883953U High-strength wear-resistant continuous flexible sucker rod |
| 06/29/2011 | CN201883952U High-molecular composite sucker rod |
| 06/29/2011 | CN201883945U Thin-walled diamond drill bit |
| 06/29/2011 | CN201883941U Novel submersible drilling machine |
| 06/29/2011 | CN201883935U Pore-forming drill tool for advance support of tunneling works |
| 06/29/2011 | CN201883934U Hydraulic lifting type roof punching machine |
| 06/29/2011 | CN201883428U Bidirectional mixing boring tool for mixing pile machine |
| 06/29/2011 | CN102108840A Magnetically supported pumping rod centralizer |
| 06/29/2011 | CN102108839A Drill rod quick-insertion safe connection mechanism |
| 06/29/2011 | CN102108838A Gap collar for lateral drilling |
| 06/29/2011 | CN102108836A Punch die |
| 06/29/2011 | CN102108835A Motor impact transmission shaft |
| 06/29/2011 | CN101550807B Complex function unit sucker rod string |
| 06/29/2011 | CN101333913B Oil gas field water separation pipe joint |
| 06/28/2011 | US7967083 Sensor for determining a position of a jack element |
| 06/28/2011 | US7967072 Logging head release mechanism |