Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800)
12/2005
12/22/2005CA2569115A1 Disassembleable washer device for down-hole drills
12/21/2005EP1607571A2 Steerable modular drilling assembly
12/21/2005EP1606526A2 Method for preventing critical annular pressure buildup
12/21/2005EP1606490A1 Device for heating and thermally insulating at least one undersea pipeline
12/21/2005EP1399642B1 Centering device
12/21/2005EP1220974B1 Method of drilling a wellbore with disengagable couplers
12/21/2005EP1200708B1 Apparatus for optimizing production of multi-phase fluid
12/21/2005EP1068423B1 Apparatus and method for mitigating wear in downhole tools
12/21/2005EP0995008B1 Tubing shoe
12/21/2005EP0862682B1 Autonomous downhole oilfield tool
12/21/2005CN2747352Y Integral coupled petroleum sleeve joint with metal interference
12/21/2005CN1711405A Downhole hydraulic control line connector
12/20/2005CA2220160C Multi-cycle releasable connection
12/18/2005CA2510212A1 Method and system to deploy control lines
12/15/2005US20050277347 Buoyancy control systems for tubes
12/15/2005US20050274527 Apparatus and method for dewatering low pressure gradient gas wells
12/15/2005US20050274514 Structure for a cable connection head
12/14/2005CN2746115Y Rubber vibration damping type centering guide
12/14/2005CN2746114Y 4' casing pipe centering guide
12/14/2005CN2746113Y Automatic rotating vibration absorbing device of preventing offset wearing and releasing sucker rod
12/14/2005CN1708629A Apparatus for connecting two basically rod shaped and tube shaped elements
12/14/2005CN1707148A Umbilical filling
12/13/2005CA2285767C Indexing mechanism and apparatus incorporating the same
12/13/2005CA2252787C Slip joint
12/09/2005CA2470562A1 Firing head with detonation gas release activation
12/08/2005WO2005116388A1 System and methods using fiber optics in coiled tubing
12/08/2005WO2005116387A2 Deployment system
12/08/2005US20050271476 Seafloor/surface connecting installation for a submarine pipeline which is connected to a riser by means of at least one elbow pipe element that is supported by a base
12/08/2005US20050269102 Tieback connector
12/08/2005US20050269096 Method and apparatus for blow-out prevention in subsea drilling/completion systems
12/08/2005US20050269076 Erosion resistant aperture for a downhole valve or ported flow control tool
12/08/2005CA2566221A1 System and methods using fiber optics in coiled tubing
12/07/2005EP1601904A1 Method for producing a threaded tubular connection sealed by radial expansion
12/07/2005EP1601856A1 Apparatus and method of controlling motion and vibration of a sensor in a drilling assembly
12/07/2005EP1601855A1 Apparatus and methods for remote installation of devices for reducing drag and vortex induced vibration
12/07/2005EP1478824A4 Well system
12/07/2005EP1468164B1 Riser for connection between a vessel and a point at the seabed
12/07/2005EP1327050B1 Cement shoe assembly for monobore well
12/07/2005CN2744824Y Safety joint for drilling
12/07/2005CN2744823Y Pumping polish rod with groove and its mating smooth fastener
12/07/2005CN1704558A Down-hole drill string speed-changing transmission joint
12/06/2005US6973416 Oilfield equipment identification method and apparatus
12/06/2005US6971685 Multi-point high pressure seal for expandable tubular connections
12/06/2005US6971459 Stabilizing system and methods for a drill bit
12/06/2005US6971457 Moldable fabric
12/06/2005US6971450 Completion apparatus and methods for use in wellbores
12/06/2005US6971447 Vent screen pressure deployment tool and method of use
12/06/2005CA2268511C Rod guide with wear gauge
12/06/2005CA2260934C Improved emergency release tool
12/01/2005WO2005114029A1 Metal sleeve seal for threaded connections
12/01/2005WO2005113931A1 Method and device for introducing geophysical measuring cables into horizontal and vertical boreholes
12/01/2005WO2005113929A1 A device in connection with heave compensation
12/01/2005WO2005051755A3 Buoyancy can for offshore oil and gas riser
12/01/2005US20050263295 Recoverable, reinforced and vibration-damping plug used for cased wells
12/01/2005US20050263281 System and methods using fiber optics in coiled tubing
12/01/2005CA2565021A1 Metal sleeve seal for threaded connections
11/2005
11/30/2005EP1599653A1 Shank adapter for rock drilling machines
11/30/2005EP1235971B1 Reamer shoe
11/30/2005CN2743528Y Pipe line opposite joining centralizer
11/30/2005CN2743527Y Lock block type oil pumping rod relieve and joining device
11/30/2005CN1229567C Choke inductor for wireless communication and control in a well, and arrangement method in pipeline
11/29/2005US6968904 Method and apparatus for operations in underground/subsea oil and gas wells
11/29/2005US6968618 Expandable connector
11/29/2005US6968611 Internal coaxial cable electrical connector for use in downhole tools
11/24/2005WO2005111368A1 Improvement in or relating to roller subs
11/24/2005WO2005111367A1 Highly sealing screw joint for oilfield tubes (variants) and method for producing a screw joint therefor (variants)
11/24/2005US20050258640 Anti-Rotation Device for Mating Connectors and Methods of Using the Same
11/24/2005US20050257934 Flow through subassembly for a downhole drill string and method for making same
11/24/2005US20050257385 Mode selection mechanism for power tool, and power tool incorporating such mechanism
11/23/2005EP1598583A1 Anti-rotation device for mating connectors and method of using same
11/23/2005EP1598486A2 Riser pipe for a deep well
11/23/2005EP1598485A2 Device for the evacuation of a riser pipe
11/23/2005EP1598134A1 Mode selection mechanism for power tool, and power tool incorporating such mechanism
11/23/2005EP1598133A1 Coupling for drilling apparatus
11/23/2005EP1597455A1 Radially adjustable downhole devices & methods for the same
11/23/2005EP1597454A1 Tool
11/23/2005EP1485570A4 Thrust control apparatus
11/23/2005CN2742117Y Casing drilling bearing torque protector
11/23/2005CN2742116Y Anti-wear pumping aid synergistic wax scraping centralizer
11/23/2005CN2742115Y Shoulder fixing type centralizer for oil pumping rod
11/23/2005CN1699724A Guide rail type deflection proof extension rod centralizer
11/23/2005CN1699027A Mode selection mechanism for power tool, and power tool incorporating such mechanism
11/22/2005US6966393 Drill drive steel
11/22/2005US6966384 Deploying a cable through a guide conduit in a well
11/22/2005US6966381 Drill-through spool body sleeve assembly
11/22/2005US6966378 Method and apparatus for perforating a well
11/22/2005US6966374 In situ thermal recovery from a relatively permeable formation using gas to increase mobility
11/22/2005CA2409304C Composite spoolable tube
11/22/2005CA2330402C Method of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions
11/22/2005CA2321536C Composite spoolable tube
11/22/2005CA2311388C Tool cooling system
11/22/2005CA2287696C Locking swivel device
11/22/2005CA2206169C A bit retention device for a bit and chuck assembly of a down-the-hole percussive drill
11/20/2005CA2507909A1 Anti-rotation device for mating connectors and methods of using same
11/17/2005WO2005108848A2 Improved coupling for drilling-with-casing operations
11/17/2005WO2005108844A2 Threaded connection for oil field applications
11/17/2005WO2005108800A1 Tail fairing designed with features for fast installation, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings
11/17/2005WO2005108799A1 Tail fairing designed with features for suppression of vortices addition between fairings, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings
11/17/2005WO2005108734A1 Ultrashort radius drilling apparatus and method
11/17/2005WO2005107395A2 Flexible drillstring apparatus and method for manufacture
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