Patents
Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800)
10/2013
10/10/2013WO2012143723A3 Slip joint and method of operating a slip joint
10/10/2013WO2012143672A3 Hybrid riser system
10/10/2013WO2012143671A3 Subsea conduit system
10/10/2013WO2011084213A3 Process of applying hard-facing alloys having improved crack resistance and tools manufactured therefrom
10/10/2013US20130266381 Transfer System
10/10/2013US20130264070 Misalignment-Tolerant Wellsite Connection Assembly, System, and Method
10/10/2013US20130264067 Downhole Draw-Down Pump and Method
10/10/2013US20130264065 Rotating and reciprocating swivel apparatus and method
10/09/2013EP2646731A2 Turbulence free ring
10/09/2013EP2646730A2 Composite pipe
10/09/2013EP2646645A2 Tapered thread configuration with improved durability
10/09/2013EP2646644A2 Bottom preventer for use in a drilling system
10/09/2013EP2646643A1 Contamination resistant connecting system and method
10/09/2013EP2646639A2 Vibration transmission and isolation
10/09/2013EP2646625A1 Coupling, in particular for connecting anchor rods
10/09/2013EP2646225A2 Composite pipe
10/09/2013CN203230353U Wearing bush top thread
10/09/2013CN203230352U Sleeve joint for gathering and transportation of petroleum
10/09/2013CN203230351U Drilling tool thread structure for increasing thread root width
10/09/2013CN203230350U Thread form structure of straight thread
10/09/2013CN203230349U Drilling tool thread structure for increasing area of thread bearing surface
10/09/2013CN203230348U Double-shoulder sealing surface structure
10/09/2013CN203230347U Temperature control blow-off petroleum pipeline
10/09/2013CN203230346U Automatic loading-unloading drill rod mechanism of non-excavation horizontal directional drilling machine
10/09/2013CN203230345U Honeycomb-shaped drill stem and connecting device thereof
10/09/2013CN203229944U Rock-socketed prestressed pipe pile grouted after being embedded in pile bottom through spinning and rocking drilling
10/09/2013CN103348088A Drill rod guide
10/09/2013CN103348087A Parameter sensing and monitoring
10/09/2013CN103348085A Vibration transmission and isolation
10/09/2013CN103343844A Duplex-metal composite gas drainage pipeline with coating and manufacturing method thereof
10/09/2013CN103343669A Dual rod drill pipe with improved flow path method and apparatus
10/09/2013CN103343668A Wired cable transmission drilling rod connector
10/09/2013CN102226379B Sleeve for marine riser
10/08/2013US8550189 Drive pin support
10/08/2013US8550186 Rotary steerable tool employing a timed connection
10/08/2013US8550175 Well completion with hydraulic and electrical wet connect system
10/08/2013US8550173 Locking safety joint for use in a subterranean well
10/08/2013US8550172 Plural barrier valve system with wet connect
10/08/2013US8550169 Connector
10/08/2013CA2707275C Drilling cuttings mobilizer
10/08/2013CA2530837C Helical rod guide and method
10/08/2013CA2491807C Sealed branch wellbore transition joint
10/03/2013WO2013149099A1 Friction reduction mechanism for a downhole release assembly
10/03/2013WO2013148110A2 Expansion tool for non-cemented casing-casing annulus (cca) wellbores
10/03/2013WO2013106011A3 Downhole oscillator
10/03/2013WO2013030050A3 Method and system for drilling with reduced surface pressure
10/03/2013WO2013004478A3 Inductive connection
10/03/2013US20130256033 Multiple distributed pressure measurements
10/03/2013US20130255967 Expansion Tool for Non-Cemented Casing-Casing Annulus (CCA) Wellbores
10/03/2013US20130255966 Removable modular antenna assembly for downhole applications
10/03/2013US20130255956 Seal Sub System
10/03/2013US20130255935 Expansion Tool for Non-Cemented Casing-Casing Annulus (CCA) Wellbores
10/02/2013EP2643541A1 Submersible progressive cavity pump driver
10/02/2013CN203223245U Anti-collapsing apparatus for drainage drill hole with large aperture and long distance
10/02/2013CN203223187U Riser shoe with elliptic conical teeth
10/02/2013CN203223186U Latch-type underground pipeline protector
10/02/2013CN203223185U Anti-squeezing and anti-biting protection drill rod
10/02/2013CN203223184U Coupler structure for thread of casing pipe with external diameter of 508 to 622.3 mm
10/02/2013CN203223183U Assembled pipe type heavy weight drill rod
10/02/2013CN103339431A Turbulence free ring
10/02/2013CN103339343A Selective sleeve system and method of moving a sleeve
10/02/2013CN103334705A Novel sucker rod centering device
10/02/2013CN103334704A Rolling type eccentric wear preventing coupling capable of realizing rotation and revolution for sucker rod
10/02/2013CN103334703A Middle dual-flexibility device for offshore drilling riser
10/02/2013CN103334699A Coal mine underground coal bed drilling and cave-building device and method of use
10/02/2013CN102505093B Solid expansion tube steel for open hole completion of oil and gas well and manufacturing method thereof
10/02/2013CN101535597B Drilling tool, self -drilling rock bolt, drill bit, ancoring device for self -drilling rock bolt, shaft for drilling tool and end coupling for drilling tool
10/01/2013CA2719445C Device and method for improving liquid removal from gas, condensate & oil wells when using a multi-channel system
09/2013
09/26/2013WO2013142576A1 Well centralizer
09/26/2013WO2013141993A1 Internal gripping system
09/26/2013WO2013140179A2 Cladding
09/26/2013WO2013140090A1 Installation comprising seabed-to-surface connections of the multi-riser hybrid tower type, including positive-buoyancy flexible pipes
09/26/2013WO2013138857A1 Electrical conductor subassembly and method of use
09/26/2013US20130248209 High pressure tie back receptacle and seal assembly
09/26/2013US20130248208 Downhole Tool Roller Device With Cylindrical Bearing Mechanism
09/26/2013US20130248207 Centraliser
09/26/2013US20130248198 Safety System for Deep Water Drilling Units Using a Dual Blow Out Preventer System
09/26/2013US20130248197 Multipart sliding joint for floating rig
09/26/2013US20130248196 High-capacity single-trip lockdown bushing and a method to operate the same
09/26/2013US20130247355 Internal gripping system
09/26/2013DE102012204496A1 Drilling device for producing well bore, has conduit emerged from rear end of drilling element, which comprises primary cable end arranged in drilling element and secondary cable end arranged outside the drilling element
09/25/2013EP2642063A1 A drill bit for percussive drilling
09/25/2013EP2640930A1 Kobe sub, wellbore tubing string apparatus and method
09/25/2013EP2640926A1 Remote operation of a rotating control device bearing clamp and safety latch
09/25/2013EP2640925A1 Remote operation of a rotating control device bearing clamp
09/25/2013EP2640924A1 A rod suitable for being inserted into a deviated wellbore and a method of manufacturing the same
09/25/2013EP2640923A1 Tower for exploiting fluid in an expanse of water and associated installation method
09/25/2013CN203214003U Float collar and pipe string using same
09/25/2013CN203213979U Double-wall drilling rod for complex stratum
09/25/2013CN203213978U Comprehensive protector for sucker rod
09/25/2013CN203213977U Rotary internal flow centralizer for lifting full-metal screw pump
09/25/2013CN203213976U Dual-seal airtight joint type threads used for oil pipe and casing pipe
09/25/2013CN203213975U Petroleum casing pipe pup joint
09/25/2013CN203213974U Rapid screwing threads for casing tubes
09/25/2013CN203213973U Plug drill rod connecting sleeve
09/25/2013CN203213972U Fast screwing thread strengthening structure for oil drill pipe joint
09/25/2013CN203213971U Anti-eccentric-abrasion sucker rod connecting hoop
09/25/2013CN203213970U High air-tight seal X-over connector
09/25/2013CN203213969U Petroleum drill rod heavy weight joint
09/25/2013CN203213968U Petroleum drill rod joint
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