| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 08/27/2007 | CA2549773A1 Self-orienting guide shoe |
| 08/23/2007 | WO2007094687A1 Gas tight tubular joint or connection |
| 08/23/2007 | WO2007093771A1 Downhole assembly and cutter assembly |
| 08/23/2007 | WO2007093047A1 Casing connection |
| 08/23/2007 | US20070196181 Cladding |
| 08/23/2007 | US20070196180 Drilling Rig Placed on the Sea Bed and Equipped for Drilling of Oil and Gas Wells |
| 08/23/2007 | US20070193762 Electric power tool |
| 08/23/2007 | CA2641391A1 Downhole assembly and cutter assembly |
| 08/22/2007 | EP1727961B1 Method and system for starting up a pipeline |
| 08/22/2007 | EP1472483B1 Conduit pipe |
| 08/22/2007 | CN2937475Y Landing centering guide of radio inclinometer during drilling |
| 08/22/2007 | CN2937448Y Multifunction proof-wear sucker rod centralising device |
| 08/22/2007 | CN2937447Y Wellhead polish rod centering device of beam-pumping unit |
| 08/22/2007 | CN2937446Y Spacing rotation centering wax scraper |
| 08/22/2007 | CN2937445Y Petroleum casing joint for narrow clearance well cementation |
| 08/22/2007 | CN2937444Y 24 fen hammer type three-wire thread joint conduit |
| 08/22/2007 | CN101021147A Sucker rod connection with improved fatigue resistance |
| 08/21/2007 | US7258177 Fracture and wear resistant compounds and rock bits |
| 08/21/2007 | CA2442355C Expandable connection |
| 08/21/2007 | CA2429017C Surface-actuated release tool for submersible pump assemblies and releasing method |
| 08/21/2007 | CA2270986C Apparatus and method for expanding a liner patch |
| 08/16/2007 | WO2007092051A1 System for and method of restraining a subsurface exploration and production system |
| 08/16/2007 | WO2007091218A2 Self-anchoring device with force amplification |
| 08/16/2007 | WO2007091054A1 Improvements in and relating to downhole tools |
| 08/16/2007 | US20070187146 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/16/2007 | US20070187111 Apparatus and method for dewatering low pressure gradient gas wells |
| 08/16/2007 | US20070187109 System for and method of restraining a subsurface exploration and production system |
| 08/16/2007 | CA2641687A1 Improvements in and relating to downhole tools |
| 08/15/2007 | EP1818499A1 Apparatus for simultaneously drilling and casing boreholes |
| 08/15/2007 | EP1817475A2 A hybrid riser system |
| 08/15/2007 | EP1581719B1 Actuation devices, tools and apparatus |
| 08/15/2007 | EP1529148B1 Welded joints for rotary-vibratory drills having reduced stress |
| 08/15/2007 | EP1463868B1 Down-the-hole drill hammer. |
| 08/15/2007 | EP1337735B1 Thread joint for percussive drilling and parts therefor |
| 08/15/2007 | CN2934556Y Composite joint for sand flushing and salvaging |
| 08/15/2007 | CN2934555Y Oil pipe tension anchoring compensator |
| 08/15/2007 | CN2934551Y Suspension type falling-proof supporting device |
| 08/15/2007 | CN2934550Y Special-shaped sucker rod pup joint |
| 08/14/2007 | US7255183 Gap sub assembly |
| 08/14/2007 | US7255165 Field-installable rod guide |
| 08/14/2007 | CA2453768C Drilling with concentric strings of casing |
| 08/14/2007 | CA2440375C Tube manufacture |
| 08/14/2007 | CA2425058C Expandable float shoe and associated methods |
| 08/14/2007 | CA2289286C Tubular junction for tubing pump |
| 08/14/2007 | CA2255119C Device for limiting the bending radius of a flexible duct |
| 08/14/2007 | CA2240620C Wellbore cable protector |
| 08/14/2007 | CA2225595C Centralizer |
| 08/14/2007 | CA2150733C A rotatable pressure seal |
| 08/09/2007 | US20070181322 Power tool with angle drive and pinion adjustment |
| 08/08/2007 | EP1816384A1 Pipe connection, in particular of pipes for a drilling rising main |
| 08/08/2007 | EP1815103A1 Rock drill bit |
| 08/08/2007 | CN2931758Y New pattern on-off connector of oil field |
| 08/08/2007 | CN101012741A Method for lowing energy-consumption and increasing output by changing elasticity modulus of pumping rod and special apparatus |
| 08/08/2007 | CN101012737A Switch of output increasing, water searching and blocking method for oil well in production |
| 08/07/2007 | US7253745 Corrosion-resistant downhole transmission system |
| 08/07/2007 | US7252437 Fiber optic wet connector acceleration protection and tolerance compliance |
| 08/07/2007 | US7252164 Cutting structure based hydraulics |
| 08/07/2007 | US7252163 Downhole under-reamer tool |
| 08/07/2007 | US7252160 Electromagnetic gap sub assembly |
| 08/07/2007 | US7252150 Downhole tool |
| 08/07/2007 | CA2322441C Threaded connection for internally clad pipe |
| 08/07/2007 | CA2279338C Drilling assembly with a steering device for coiled-tubing operations |
| 08/07/2007 | CA2239590C Method of suspending an esp within a wellbore |
| 08/07/2007 | CA2201945C A mechanical overload protection device |
| 08/02/2007 | WO2007085059A1 A disengageable spindle drive |
| 08/02/2007 | WO2007085046A1 Bore selector |
| 08/02/2007 | WO2006073902A3 Threads with perturbations |
| 08/02/2007 | US20070175668 Process and system for drilling and lining a bore hole |
| 08/02/2007 | US20070175663 Measuring device and drilling device for deep drillings |
| 08/02/2007 | DE202007005796U1 Abstandhalter zur achsparallelen Fixierung mehrerer Rohrstränge Spacer for axis-parallel fixation of multiple pipe runs |
| 08/02/2007 | CA2644682A1 A disengageable spindle drive |
| 08/01/2007 | EP1812614A1 Duplex stainless steel |
| 08/01/2007 | CN2929167Y Safety valve of drill pole |
| 08/01/2007 | CN2929149Y Vortex rigid sleeve tube centralizer |
| 08/01/2007 | CN2929148Y Anti-bias wear sleeve of oil pumping rod joint hoop |
| 08/01/2007 | CN2929147Y Oil pumping rod oriented rotary device |
| 08/01/2007 | CN2929146Y Slide oil pumping rod centralizer body |
| 08/01/2007 | CN2929145Y Drill rod joint stress reducing structure |
| 08/01/2007 | CN2929144Y Novel drill rod |
| 08/01/2007 | CN2929143Y Anti-bias wear oil pumping rod |
| 08/01/2007 | CN1329622C A method and device by a displacement tool |
| 08/01/2007 | CN1329618C Method and arrangement by a workover riser connection |
| 08/01/2007 | CN1329617C Rotational cutting aiguille subassembly of the drill, flexible sleeve airproof parts and steel drill pipe subassembly |
| 08/01/2007 | CN1329546C High-strength drilling rod for petroleum and method for making same |
| 08/01/2007 | CN1329544C High anti-extrusion petroleum casing pipe and method for producing same |
| 08/01/2007 | CN101010536A Threaded joint for steel pipes |
| 08/01/2007 | CN101010482A Excavating tool and steel pipe forepoling method |
| 07/31/2007 | US7249637 Method and device to clamp control lines to tubulars |
| 07/31/2007 | US7249636 System and method for communicating along a wellbore |
| 07/31/2007 | US7249633 Release tool for coiled tubing |
| 07/31/2007 | US7249632 Top drive swivel apparatus and method |
| 07/31/2007 | CA2576538A1 Improved hollow sucker rod connection with second torque shoulder |
| 07/31/2007 | CA2446571C Joining of tubulars through the use of explosives |
| 07/31/2007 | CA2324214C Thread joint for percussive drilling |
| 07/26/2007 | WO2007050161A3 Downhole tool |
| 07/26/2007 | WO2005108844A3 Threaded connection for oil field applications |
| 07/26/2007 | US20070169939 Wellbore casing and method of forming same |
| 07/25/2007 | EP1811126A1 Conical downhole reamer |
| 07/25/2007 | EP1811125A1 Borehole reamer |
| 07/25/2007 | EP1811124A1 Hole opener |