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)
06/2003
06/19/2003WO2003050379A1 Redundant seal design for composite risers with metal liners
06/19/2003WO2003050375A2 Thrust control apparatus
06/19/2003US20030114315 Polymeric gel system and use in hydrocarbon recovery
06/19/2003US20030111838 Lubricating coating composition suitable for lubrication of a threaded joint
06/19/2003US20030111799 Seal for riser assembly telescoping joint
06/19/2003US20030111796 Redundant metal-metal seal
06/19/2003US20030111510 Concentric, insulated tubular conduits and method for assembly
06/19/2003US20030111272 Fracture and wear resistant rock bits
06/19/2003US20030111270 Drill bit stabilizer
06/19/2003US20030111235 Indexing tool for coiled tubing
06/19/2003US20030111222 Variable OD coiled tubing strings
06/18/2003EP1319115A2 Methods and apparatus for forming a lateral wellbore
06/18/2003EP0824629B1 Drill string fitting
06/18/2003CN2556356Y Valve-type centralizer for fixing collar joint
06/18/2003CN2556355Y Knuckle threaded collar joint with thread binding preventing performance for petroleum casing and oil tube
06/18/2003CN2556354Y Multi-functional petroleum pipeline
06/18/2003CN2556353Y Drilling rod for soft coal layer high gas deep hole drilling machine
06/18/2003CN1111927C Plug-in and receptacle of electric connector
06/18/2003CN1111663C Tubular screw connector for oil field and forming method thereof
06/17/2003US6579040 Method and apparatus for air can vent systems
06/17/2003US6578637 Method and system for storing gas for use in offshore drilling and production operations
06/17/2003US6578603 Swivel apparatus
06/17/2003CA2233295C Composite spoolable tube
06/12/2003WO2003048623A1 Premium tubular threaded joint comprising at least a threaded element with end lip
06/12/2003WO2003048522A2 Severe dog leg swivel for tubing conveyed perforating
06/12/2003WO2003048506A1 Downhole tool retention apparatus
06/12/2003WO2003048505A1 Coring system and method
06/12/2003WO2003048501A2 Downhole assembly releasable connection
06/12/2003US20030107213 Expandable locking thread joint
06/12/2003US20030107186 Redundant seal design for composite risers with metal liners
06/12/2003US20030106719 Centraliser
06/12/2003US20030106717 Coring system and method
06/12/2003US20030106692 System and method for lessening impact on christmas trees during downhole operations involving christmas trees
06/12/2003US20030106685 Multiple seal design for composite risers and tubing for offshore applications
06/12/2003US20030106618 Expandable locking thread joint
06/11/2003EP1318269A2 Non rotating centraliser
06/11/2003EP1248893A4 Integrated transmitter surveying while boring (swb) entrenching powering device for the continuation of a guided bore hole
06/11/2003EP0968351B1 Expandable slotted tubing string and method for connecting such a tubing string
06/11/2003EP0633965B1 Cut expansion joint sealing device for concrete dams and method for fitting same
06/11/2003CN2555381Y High wear resistance sleevable stabilizer
06/11/2003CN2555380Y Short connecting spirally centering guide
06/11/2003CN2555379Y Anticreep packer
06/11/2003CN2555378Y Branch well tail tube head rotator
06/11/2003CN2555377Y Chuck block supporting oil pipe column anchor
06/11/2003CN2555376Y Hydraulic bed breading and friction reducing centering short segment
06/11/2003CN2555375Y Antidropping expansion device
06/11/2003CN1423030A Method and apparatus for determining oil-layer characteristic
06/10/2003US6575255 Pantograph underreamer
06/10/2003US6575241 Downhole communication apparatus
06/05/2003WO2003046334A1 Expandable tubes with overlapping end portions
06/05/2003US20030103811 Control cable
06/05/2003US20030102167 Bit retention system
06/05/2003US20030102164 Thrust control apparatus
06/05/2003US20030102132 Downhole assembly releasable connection
06/05/2003US20030102130 In situ thermal recovery from a relatively permeable formation with quality control
06/05/2003US20030102126 In situ thermal recovery from a relatively permeable formation with controlled production rate
06/05/2003US20030102125 In situ thermal processing of a relatively permeable formation in a reducing environment
06/05/2003US20030102124 In situ thermal processing of a blending agent from a relatively permeable formation
06/05/2003US20030102122 Severe dog leg swivel for tubing conveyed perforating
06/04/2003EP1316674A1 Protector for side-wall fluid tester
06/04/2003EP1316670A2 Apparatus for static earth boring
06/04/2003EP1192331B1 Method of deploying an electrically driven fluid transducer system in a well
06/04/2003EP1009906B1 Riser bundle
06/04/2003EP0876546B1 Completions insertion and retrieval under pressure (cirp) apparatus including the snaplock connector
06/04/2003CN2554335Y Clamp sucker rod cenering guide
06/04/2003CN2554334Y Continuous sucker rod joint of fibre reinforced composite
06/04/2003CN2554333Y Sucker rod special for upsetting type screw pump
06/03/2003US6572152 Subassembly electrical isolation connector for drill rod
06/03/2003US6571888 Apparatus and method for directional drilling with coiled tubing
06/03/2003US6571880 Method and multi-purpose apparatus for control of fluid in wellbore casing
06/03/2003US6571879 Surface-actuated release tool for submersible pump assemblies
06/03/2003US6571878 Smooth buoyancy system for reducing vortex induced vibration in subsea systems
06/03/2003CA2080394C Ultra-high molecular weight polyethylene sucker rod guide and method of construction
05/2003
05/29/2003US20030100451 Providing heat heat sources to at least one portion of the formation; allowing the heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation
05/29/2003US20030098605 In situ thermal recovery from a relatively permeable formation
05/29/2003US20030098585 Tightening method for a pipe joint
05/29/2003US20030098181 Active controlled bottomhole pressure system & method
05/29/2003US20030098162 Method of inserting a tubular member into a wellbore
05/29/2003US20030098156 Method and apparatus for determining reservoir characteristics
05/29/2003US20030098155 Downhole tool retention apparatus
05/29/2003US20030098154 Apparatus for radially expanding tubular members
05/29/2003US20030098149 In situ thermal recovery from a relatively permeable formation using gas to increase mobility
05/28/2003EP1218620B1 Cable protection in blow-out preventers
05/28/2003EP0988141B1 Method of welding generally rod-shaped structures of a fluorine-containing plastic material in a butt weld
05/28/2003DE20301137U1 Pipe comprises two lengths interconnected by collar or corresponding sleeve which have aligning bolt holes for fitting of connecting bolt to create connection for each pipe
05/28/2003CN2553094Y Double disconnecting-proof solid sucker rod
05/28/2003CN2553093Y Double disconnecting-proof hollow sucker rod
05/28/2003CN2553092Y Hollow sucker rod
05/28/2003CN1420974A Fatigue-resistant threaded bevelled tubular element
05/28/2003CN1420972A Expandable joint connector
05/28/2003CA2364151A1 Well stimulation and method of use
05/27/2003US6571046 Protector system for fiber optic system components in subsurface applications
05/27/2003US6568501 Receiver array using tubing conveyed packer elements
05/27/2003US6568481 Deep well instrumentation
05/27/2003US6568477 Method and apparatus for conveying fluids, particularly useful with respect to oil wells
05/27/2003US6568469 Method and apparatus for connecting a main well bore and a lateral branch
05/27/2003CA2191148C Apparatus for measuring formation resistivity through a conductive casing having a coaxial tubing inserted therein
05/22/2003WO2003042499A1 A device and a method for electrical coupling
05/22/2003WO2003042493A1 Thread joint
05/22/2003WO2003042489A2 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
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