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 7 - Special methods or apparatus for drilling
Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
11/2012
11/01/2012US20120273269 Long distance high power optical laser fiber break detection and continuity monitoring systems and methods
11/01/2012US20120273218 Offshore universal riser system
11/01/2012CA2832727A1 Offshore fluid transfer systems and methods
10/2012
10/31/2012EP2518259A2 Instrumented internal blowout preventer valve for measuring drill string drilling parameters
10/31/2012EP2518255A1 Air hammer for a boring machine
10/31/2012EP2516790A1 Determining a property of a formation material
10/31/2012EP2516789A1 Drilling a borehole and hybrid drill string
10/31/2012EP2516788A1 Method of drilling and jet drilling system
10/31/2012EP2516787A1 Method of drilling and jet drilling system
10/31/2012EP2516786A1 Method of drilling and abrasive jet drilling assembly
10/31/2012CN202510062U Drill stem overturning mechanism for horizontal directional drilling
10/31/2012CN202510030U Vehicle multipurpose roofbolter
10/31/2012CN202510029U Longitudinal beam oil cylinder support lug structure
10/31/2012CN202510027U Small-size power head and vehicle-mounted drilling machine using same
10/31/2012CN202509492U Pile casing structure and rotary drilling rig comprising same
10/31/2012CN102762812A Apparatus, system and method for releasing fluids from a subsea riser
10/31/2012CN102762796A Method, apparatus and system for attaching an anchor member to a floor of a body of water
10/31/2012CN102758588A Vibrator for coaxial type audio frequency physical exploring drill
10/31/2012CN102758587A Orientation tool for liquid control of coiled tubing
10/31/2012CN102758586A Front arm type real-time random lifting loading type pit drill
10/31/2012CN102758430A Large-diameter rotary digging pile construction technology for ultra-deep dumped unconsolidated soil bodies
10/31/2012CN102061933B Long drilling positioning construction process
10/31/2012CN101899948B Method for cutting slots in concrete buildings
10/31/2012CN101709624B Automatic loading shotcrete machine for coal mine
10/31/2012CN101709623B Integral coal mine drilling machine hydraulic system capable of satisfying multiple drilling modes
10/30/2012US8297380 Casing and liner drilling shoes having integrated operational components, and related methods
10/30/2012US8297377 Method and system for accessing subterranean deposits from the surface and tools therefor
10/30/2012US8297360 Apparatus and method for processing fluids from a well
10/30/2012US8297350 Method and system for accessing subterranean deposits from the surface
10/26/2012WO2012145637A2 Apparatus and method for tool face control using pressure data
10/26/2012WO2012145286A2 Well system with lateral main bore and strategically disposed lateral bores and method of forming
10/26/2012WO2012145160A2 Galvanically isolated exit joint for well junction
10/26/2012CA2831635A1 Galvanically isolated exit joint for well junction
10/25/2012US20120267171 Well System With Lateral Main Bore and Strategically Disposed Lateral Bores and Method of Forming
10/25/2012US20120267168 Electric motor for laser-mechanical drilling
10/25/2012US20120267137 Carburetor system for outdoor power equipment
10/24/2012EP2514911A1 Drilling device
10/24/2012EP2513404A2 Drilling assembly with a steering unit integrated in drilling motor
10/24/2012EP2513403A1 Hose tensioner for a rock drill system
10/24/2012CN202500537U Symmetrical type double-lateral detonating large-aperture perforating bullet
10/24/2012CN202500525U An anti-collapse apparatus for rock holes by grouting and congealing walls of holes
10/24/2012CN202500493U Multi-cylinder hydraulic moving device for moving chambering tool bit
10/24/2012CN202500492U Retrievable drilling and completion whipstock used for oil drilling
10/24/2012CN102748065A Method for extracting gas of blank zone of working face with large mining length
10/24/2012CN102747974A Well drilling vibrator of horizontal well
10/24/2012CN102747959A Method for fixing object and expansion bolt and special borer for method
10/24/2012CN102747958A Compound vibrating well-drilling tool
10/24/2012CN102747957A Drilling tool for stimulating vibration of drill column
10/24/2012CN102747956A Coal bed gas pipe layout device and pipe layout method thereof
10/24/2012CN102747955A Novel deep-sea automatic extension rod drilling machine for maintaining pressure and sampling and use method of novel deep-sea automatic extension rod drilling machine
10/24/2012CN102747954A Hole-drilling guiding positioning system suitable for inclined rock surface and construction method
10/24/2012CN102747953A Multiple step type drilling and protecting integrated system and process for soft coal seam
10/24/2012CN102747952A Hydraulic walking type percussion reverse circulation slot repairing machine
10/24/2012CN102747708A Saline-alkaline land canal digging method
10/24/2012CN101956531B Underground horizontal drilling combined drilling tool of oil well drilling platform
10/24/2012CN101701505B Sleeve pore-fixing device and method
10/24/2012CN101365858B Formation component and method for reducing the borehole gap for downhole formation testing sensors
10/23/2012US8291974 Method and system for accessing subterranean deposits from the surface and tools therefor
10/23/2012CA2523092C Systems and methods using a continuously variable transmission to control one or more system components
10/18/2012WO2012142543A2 System and method for coupling an impregnated drill bit to a whipstock
10/18/2012WO2012140222A1 Method and device for nondestructive drilling
10/18/2012WO2012112612A3 Tubing hanger and methods for testing and sealing the tubing hanger
10/18/2012US20120261194 Drilling a borehole and hybrid drill string
10/18/2012US20120261193 System and method for coupling an impregnated drill bit to a whipstock
10/18/2012US20120261188 Method of high power laser-mechanical drilling
10/18/2012DE102011103220B3 Doppelrohrgestängeschuss mit einer im Doppelrohrgestängeschuss angeordneten Sonde, ein Horizontalbohrgerät und ein Sondengehäuse Double tubing string shot with a arranged in a double shot of drill pipe probe, horizontal drilling and a probe housing
10/17/2012EP2511468A1 A method and apparatus for communicating with a device located in a borehole
10/17/2012CN202493218U Electronic joint of vertical well drilling system
10/17/2012CN102741499A Method of expanding a tubular element in a wellbore
10/17/2012CN102733765A Construction device
10/17/2012CN102733756A Vibration and pressure well drilling tool
10/17/2012CN102733755A Rotary drilling guider
10/17/2012CN102733754A Pulse plasma drilling machine system
10/17/2012CN102733433A Hole-digging and poling all-in-one machine
10/17/2012CN102003140B Traversing reverse circulating drilling method of horizontal directional drilling pipeline and special drilling bit
10/17/2012CN101699019B Device for reconstructing well head with fire for oil-gas well out of control
10/16/2012US8287051 Method of quarrying dimensional stone, and line drilling apparatus
10/16/2012US8286733 Rotary steerable tool
10/16/2012US8286732 Steering component, steering assembly and method of steering a drill bit in a borehole
10/16/2012US8286731 Method and apparatus for constructing deep vertical boreholes and underground cut-off walls
10/16/2012US8286726 User interface for rock drilling rig
10/16/2012US8286712 Deploying an electrically-activated tool into a subsea well
10/16/2012US8286708 Methods and apparatuses for installing lateral wells
10/16/2012US8286699 Multiple production string apparatus
10/16/2012CA2641296C Universal marine diverter converter
10/16/2012CA2614679C Coiled tubing drilling system
10/11/2012WO2012138912A2 Offshore top tensioned riser buoyancy can system and methods of field development
10/11/2012WO2012138904A2 System and method for coupling a drill bit to a whipstock
10/11/2012WO2012138827A2 Apparatus for controlling drill bit depth of cut using thermally expandable materials
10/11/2012WO2012138126A2 Rod mounting device for drilling machine
10/11/2012US20120255792 Method of drilling and jet drilling system
10/11/2012US20120255791 Method of drilling and abrasive jet drilling assembly
10/11/2012US20120255788 Drill Bit with Hydraulically Adjustable Axial Pad for Controlling Torsional Fluctuations
10/11/2012US20120255787 Method for Hydrocarbon Well Completion
10/11/2012US20120255786 Method and Apparatus for Reaming Well Bore Surfaces Nearer the Center of Drift
10/11/2012US20120255785 System and method for coupling a drill bit to a whipstock
10/11/2012US20120255784 Apparatus for Controlling Drill Bit Depth of Cut Using Thermally Expandable Materials
10/11/2012US20120255783 Rotating control device with positive drive gripping device
10/11/2012US20120255782 Sonic drill head
10/11/2012US20120255781 Determining a property of a formation material
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