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)
10/2003
10/08/2003EP1350834A1 Composition for lubricating-film formation suitable for lubrication of screw joint
10/08/2003EP1350005A1 Hydraulic running tool
10/08/2003EP1350004A1 Torque reducing tubing component
10/08/2003EP1350003A1 Method of drilling and operating a subsea well
10/08/2003CN2578512Y Self stabilizing device for prevention of eccentrically worn drill pipe
10/08/2003CN2578511Y Anti-block filtering joint
10/08/2003CN2578510Y Sucker rods
10/08/2003CN1123718C Screwed pipe adapter with high-resistance to over torque and pressure
10/07/2003US6629568 Bi-directional grip mechanism for a wide range of bore sizes
10/07/2003CA2277627C Annular fluid manipulation in lined tubular systems
10/02/2003WO2003080989A1 Downhole universal joint assembly
10/02/2003US20030183390 Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
10/02/2003US20030183386 Transition member for maintaining fluid slurry velocity therethrough and method for use of same
10/02/2003US20030183385 Method and apparatus for integrated horizontal selective testing of wells
10/02/2003US20030183383 Mechanism that assists tractoring on uniform and non-uniform surfaces
10/01/2003EP1102913B1 Downhole tension swivel sub
10/01/2003EP0991845B1 Earth formation surveying device
10/01/2003CN2577051Y Intermediate rod sealing corrugated sleeve
10/01/2003CN2576954Y Rotable eccentric oil pipe anchor
10/01/2003CN2576428Y Mounting quad for positioning clamping-ring of centering guide
09/2003
09/30/2003US6626254 Drilling assembly with a steering device for coiled-tubing operations
09/30/2003US6626245 Blowout preventer protector and method of using same
09/30/2003US6626244 Deep-set subsurface safety valve assembly
09/25/2003WO2003078789A1 Slotted expandable centraliser
09/25/2003WO2001098701A9 Composite pipe assembly and method for its preparation
09/25/2003US20030181245 Downhole universal joint assembly
09/25/2003US20030181085 Methods and apparatus for interconnecting well tool assemblies in continuous tubing strings
09/25/2003US20030180097 Collapsible buoyancy device for risers on offshore structures
09/25/2003US20030178842 Pipe assembly
09/25/2003US20030178203 Deploying a cable through a guide conduit in a well
09/25/2003US20030178197 Downhole tubular string connections
09/25/2003US20030178193 Casing centralizer
09/24/2003EP1346129A1 Casing shoe
09/24/2003EP1346128A1 Adjustable stabiliser for directional drilling
09/24/2003CN2575287Y Polish rod anti-theft protective apparatus
09/24/2003CN2575286Y Separating drilling rod rotating tool
09/24/2003CN1443921A Constant force actuator
09/23/2003US6623044 Riser element with integrated auxiliary pipes
09/23/2003US6622803 Stabilizer for use in a drill string
09/23/2003US6622788 External casing anchor
09/23/2003CA2270236C Communication conduit in a well tool
09/23/2003CA2113458C Double-acting accelerator for use with hydraulic drilling jars
09/18/2003WO2003076837A2 Wedgethread pipe connection
09/18/2003WO2003076761A1 Drill member for rock drilling and a method for manufacturing the drill member
09/18/2003WO2003076760A2 Steerable soil penetration system
09/18/2003WO2003076759A1 Method and device for directional down-hole drilling
09/18/2003US20030173090 Lubrication and self-cleaning system for expansion mandrel
09/18/2003US20030173088 Two string drilling system
09/18/2003US20030173077 Pressure control system for a wet connect/disconnect hydraulic control line connector
09/18/2003US20030173076 Constant force actuator
09/18/2003US20030173072 Forming openings in a hydrocarbon containing formation using magnetic tracking
09/18/2003US20030172752 Apparatus for the remote measurement of physical parameters
09/18/2003CA2478442A1 Steerable soil penetration system
09/18/2003CA2477335A1 Wedgethread pipe connection
09/17/2003EP1344893A2 Constant force actuator
09/17/2003EP0910723B1 Device for limiting the bending radius of a flexible duct
09/17/2003CN2573655Y Spiral centering device for well cementation
09/17/2003CN2573654Y Pumping rod collar rotating centering guide
09/17/2003CN1443247A Hardfacing alloy. methods and products
09/16/2003US6620460 Adhering an anti-seize metallic film onto the surface of threads and coating the anti-seize protected threads with an environmentally friendly lubricating composition
09/16/2003US6619696 Expandable locking thread joint
09/16/2003US6619392 Blast joint assembly
09/16/2003CA2322844C Clamped receiver array using coiled tubing conveyed packer elements
09/16/2003CA2289367C Drilling tool with expandable elements
09/12/2003WO2003074917A1 Pipe system and method for its manufacture
09/12/2003WO2003074835A1 Rapid locking tubular coupling device
09/12/2003CA2477308A1 Pipe system and method for its manufacture
09/11/2003US20030170077 Riser with retrievable internal services
09/11/2003US20030168859 Wedgethread pipe connection
09/11/2003US20030168221 Control line retaining device
09/11/2003US20030167728 Advanced processes for coring and grouting masonry
09/11/2003CA2378134A1 Casing centralizer
09/10/2003EP1341987A1 Protective element for a riser segment
09/10/2003EP1105581B1 Marine riser having variable buoyancy
09/10/2003EP0839255B1 Safeguarded method and apparatus for fluid communication using coiled tubing, with application to drill stem testing
09/10/2003EP0824627B1 Threaded coupling, male and female extension members as well as a method of maintaining a threaded coupling
09/10/2003CN2571990Y Two-piece type stabilizer for sucker rod
09/10/2003CN2571989Y Guide joint
09/10/2003CN2571988Y slide sleeve connector for screen pipe connection and screen pipe having same
09/10/2003CN1441873A Couplings for rotary drill strings
09/10/2003CN1441871A Sand screen with integrated sensors
09/10/2003CN1441147A Production process of metal pipe and rod with hydrophobic, olephobic and three-preventing functions and the paint used
09/10/2003CN1120918C Heated offshore pipeline and method of manufacturing
09/09/2003US6615933 Downhole tool with extendable members
09/09/2003US6615922 Aluminum riser apparatus, system and method
09/09/2003US6615921 Apparatus and method for remote adjustment of drill string centering to prevent damage to wellhead
09/09/2003CA2125882C Down-the-hole rock drill
09/04/2003US20030166418 Drill string joint
09/04/2003US20030164253 Fluid drilling system
09/04/2003US20030164251 Expandable apparatus for drift and reaming borehole
09/04/2003US20030164240 Controllable gas-lift well and valve
09/04/2003US20030164236 Downhole tools
09/03/2003EP1339992A2 Knuckle-swivel for drilling wells
09/03/2003EP1339950A1 Full bore automatic gun release module
09/03/2003EP1339941A1 Improvements to disconnect devices
09/03/2003EP1339940A2 Slip connector for use with coiled tubing
09/03/2003EP1339939A1 A drilling tool used in horizontal drilling applications
09/03/2003EP1066448B1 Thread joint for percussive drilling, male and female portion for forming part of the joint and method of manufacturing a product having thread for forming part of a thread joint for percussive drilling
09/03/2003EP0800609B1 A drilling method and bit assembly to realize the method
09/03/2003CN2570444Y Non-rotating centralizer
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