Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
10/2013
10/23/2013CN102287137B Self-excitation sympathetic vibration well drilling device and method thereof
10/23/2013CN101600847B Dual-direction ram-type blowout preventer seal
10/22/2013US8563480 Subterranean bridging agents
10/22/2013US8561724 Expanding mill having camming sleeve for extending cutting blade
10/22/2013US8561722 Methods of controllably milling a window in a cased wellbore using a pressure differential to cause movement of a mill
10/22/2013US8561720 Methods and systems for drilling
10/22/2013US8561718 System and method for the thermal conditioning of a fluid more particularly a drilling mud
10/22/2013US8561714 Hand-held power tool
10/22/2013US8561706 Riser pipe with rigid auxiliary lines and offset connectors
10/22/2013US8561705 Lead impression wear bushing
10/22/2013CA2576897C Sleeve arrangement
10/22/2013CA2576893C Housing arrangement
10/17/2013WO2013155176A2 Drop away funnel for modular drilling templates
10/17/2013WO2013155061A1 Triggered heating of wellbore fluids by carbon nanomaterials
10/17/2013WO2013155059A2 System and method for forming a lateral wellbore
10/17/2013WO2013154617A2 Modular stress joint and methods for compensating for forces applied to a subsea riser
10/17/2013US20130270009 Method and system of drilling laterals in shale formations
10/17/2013US20130270005 Methods and systems for drilling
10/17/2013US20130270004 Boring ram
10/17/2013US20130269946 Modular stress joint and methods for compensating for forces applied to a subsea riser
10/16/2013EP2649265A2 Resonance enhanced rotary drilling module
10/16/2013EP2394015B1 Equipment for realisation of deep boreholes and method of realisation of deep boreholes
10/16/2013CN203239255U Hydraulic pushing device
10/16/2013CN203239238U Drum-type moving device of mine hydraulic underground drill rig
10/16/2013CN203239232U Crawler-type drilling machine
10/16/2013CN203239231U Movable well head device under tail portion power head of automotive drilling machine
10/16/2013CN203239230U Downhole jet flow auxiliary drilling speed increasing device
10/16/2013CN103352687A Method controlling hole deviation in hole drilling
10/16/2013CN103352656A Drilling system
10/16/2013CN103352655A Hollow drill rod drilling machine unit for surface drilling
10/16/2013CN101696628B Steering bias tool and steering bias method
10/15/2013US8556002 Steering component, steering assembly and method of steering a drill bit in a borehole
10/15/2013US8555978 Dual pathway riser and its use for production of petroleum products in multi-phase fluid pipelines
10/11/2013CA2773632A1 Apparatuses and methods for cooling position sensor components while drilling gravity drainage wells in hot formations
10/10/2013WO2013152219A1 Rotating and reciprocating swivel apparatus and method
10/10/2013WO2013151477A1 Apparatus for drilling and lining a borehole
10/10/2013WO2013149283A1 A roof bolter
10/10/2013WO2012158575A3 Vortex controlled variable flow resistance device and related tools and methods
10/10/2013WO2012158144A8 Apparatus and method for drilling a well
10/10/2013US20130264121 Graphene-based material for shale stabilization and method of use
10/10/2013US20130264120 System and Method for Forming a Lateral Wellbore
10/10/2013US20130264117 Drop away funnel for modular drilling templates
10/10/2013DE102012006770A1 Compression device for introducing pipe strings in soil, has abutment portions supported on roller carriage, which are provided for receiving the driving force equivalent to the driving shaft
10/09/2013EP2646644A2 Bottom preventer for use in a drilling system
10/09/2013EP2646640A2 Method and device for drilling a pit or passage, and flexible tube therefor
10/09/2013EP2646639A2 Vibration transmission and isolation
10/09/2013EP2646638A1 Method for controlling drilling unit of rock drilling rig, and rock drilling rig
10/09/2013CN203230641U High-emission open-type hydraulic system of non-excavation horizontal directional drilling machine
10/09/2013CN203230341U Single-axis stable platform device for rotary-steering drilling tool
10/09/2013CN203230340U Drilling well guider
10/09/2013CN203230339U Table type drilling machine for highways
10/09/2013CN103348090A Centraliser
10/09/2013CN103348085A Vibration transmission and isolation
10/09/2013CN103343665A Method for reducing exterior angle deviation measuring errors of directional drilling assembly and drilling tool
10/08/2013US8550186 Rotary steerable tool employing a timed connection
10/08/2013US8550185 Stochastic bit noise
10/08/2013US8550183 Drilling method
10/08/2013US8550182 Electromagnetic energy assisted drilling system and method
10/08/2013US8550171 Flexible hang-off arrangement for a catenary riser
10/08/2013US8550168 Stabplate connections
10/08/2013US8550167 Remote operated vehicle interface with overtorque protection
10/08/2013CA2712580C Method and system of monitoring rotational time of rotatable equipment
10/08/2013CA2581701C Pulsed electric rock drilling, fracturing, and crushing methods and apparatus
10/03/2013WO2013148521A1 Hammer drill
10/03/2013WO2013148026A1 Igniter and method of making
10/03/2013US20130256030 Method and device for establishing a borehole in the seabed
10/03/2013US20130255956 Seal Sub System
10/02/2013CN203223187U Riser shoe with elliptic conical teeth
10/02/2013CN203223175U Concrete body opening bottom reamer
10/02/2013CN203223174U 可移动式智能钻岩机 Removable smart rock drilling machine
10/02/2013CN203223173U Adjustable rotary-drilling electric power recovery truck
10/02/2013CN203223172U Highway drilling machine
10/02/2013CN203223171U Simple highway drilling machine
10/02/2013CN203223170U Percussion drill hammerhead applied to drilling for pile foundation under inclined rock geological condition
10/02/2013CN103334699A Coal mine underground coal bed drilling and cave-building device and method of use
10/02/2013CN103334698A Transmission device for roadway drilling device
10/02/2013CN103334697A Rotary guide device of drilling tool and drilling tool
10/02/2013CN103334696A Full-hydraulic crawler pump truck for coal mine underground directional drilling
10/02/2013CN103334695A Rotary excavation combined pneumatic down-the-hole hammer drilling pore forming method and device
10/02/2013CN103334467A Power-type engineering operation platform based on excavator
10/02/2013CN101871319B Double-caterpillar drilling machine used in coal mines
10/02/2013CN101755102B Constant-mode auto-drill with pressure derivative control
10/02/2013CN101473102B Device for steering drilling tools
10/01/2013US8544550 Subsea wellhead with segmented fatigue reduction sleeve
10/01/2013CA2780351C Flow operated orienter
10/01/2013CA2735901C Deep sea mining riser and lift system
10/01/2013CA2639343C Method and system for governing block speed
10/01/2013CA2621544C Method for determining block properties of a service rig by evaluating rig data
09/2013
09/26/2013WO2013142242A1 Methods and systems for downhole thermal energy for vertical wellbores
09/26/2013US20130248252 Reaming Shoe for Increased Borehole Clearance
09/26/2013US20130248251 Mathematical Modeling of Shale Swelling in Water Based Muds
09/25/2013EP2640932A2 Open-hole logging instrument and method for making ultra-deep magnetic and resistivity measurements
09/25/2013EP2640922A1 Method, system and rock drilling apparatus for installing a pipe in drilled holes in rock drilling
09/25/2013CN203214042U Automatic decelerating operation protection system for horizontal directional drilling machine power heads
09/25/2013CN203213960U Power head with limiting structure
09/25/2013CN203213959U Pneumatic slipping following-up type drilling rod centering device
09/25/2013CN203213958U Drilling boom of drill loader
09/25/2013CN203213957U Vehicle-mounted drilling rig for geological exploration
09/25/2013CN203213956U Drill boom for integrated drilling machine
09/25/2013CN203213955U Arch center pipe shed drilling rig
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