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)
04/2010
04/15/2010US20100089602 Self-propelled post driving apparatus
04/15/2010US20100089600 Controlling method of electric tool and electric tool carrying out the controlling method
04/15/2010US20100089583 Extendable cutting tools for use in a wellbore
04/15/2010US20100089576 Methods and Apparatus for Thermal Drilling
04/15/2010DE202010001534U1 Brunnenbohrgerät mit einem Energieversorgungsschlauch und Führungsgestänge Well drilling rigs with an energy supply hose and guide rod
04/15/2010CA2740090A1 Oil field regeneration method and device
04/15/2010CA2740059A1 Methods and apparatus for wellbore enhancement
04/15/2010CA2740055A1 Methods and apparatus for thermal drilling
04/15/2010CA2740052A1 Methods and apparatus for mechanical and thermal drilling
04/15/2010CA2740048A1 Methods and apparatus for thermal drilling
04/14/2010EP2175100A1 Three dimensional steerable system
04/14/2010EP2173960A1 Rotary steerable drilling system
04/14/2010CN201437689U Locking pin mechanism for vertical drilling tool
04/14/2010CN201437688U Spray dust removal device for point detecting equipment
04/14/2010CN101694159A Technology for rapidly constructing air shaft under chill condition and process for sinking vertical shaft pit shaft
04/13/2010US7694752 Dry drilling
04/13/2010CA2587738C Orientation tool
04/13/2010CA2511249C Method for drilling a lateral wellbore with secondary fluid injection
04/09/2010CA2680894A1 Drilling method
04/08/2010WO2010037518A2 Method and device for fusion drilling
04/08/2010WO2009156736A3 Reaming tool
04/08/2010US20100086359 Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product
04/08/2010US20100084195 Distance holder with jet deflector
04/08/2010US20100084192 Method of downlinking to a downhole tool
04/08/2010US20100084190 Rig storage system
04/08/2010DE102008049943A1 Verfahren und Vorrichtung zum Schmelzbohren Method and apparatus for melting drilling
04/08/2010DE102008036722A1 Verfahren, Vorrichtung und Bohrkopf zum Einbringen einer Bohrung in das Erdreich Method, device and drill head for introducing a hole in the ground
04/08/2010CA2741245A1 Method and apparatus for fusion drilling
04/07/2010EP2171206A2 Downhole applications of composites having aligned nanotubes for heat transport
04/07/2010EP2171204A1 Apparatus and method of loading a rod box for a horizontal directional drill
04/07/2010CN101691832A Vertical shaft drilling-grouting parallel operation technology
04/06/2010US7693695 Methods for modeling, displaying, designing, and optimizing fixed cutter bits
04/06/2010US7690443 Apparatus, system, and method for casing hole formation in radial drilling operations
04/06/2010CA2435380C Directional drilling apparatus
04/06/2010CA2345560C Rotary steerable drilling tool
04/01/2010WO2010036564A2 Modular rotary drill head
04/01/2010WO2010036318A1 Laser assisted drilling
04/01/2010WO2010036278A1 Deep sea mining riser and lift system
04/01/2010WO2009095195A3 Method and device for creating a deep borehole
04/01/2010WO2009001123A3 Vertical direction adjustment tool for downhole drilling apparatus
04/01/2010US20100078414 Laser assisted drilling
04/01/2010US20100078219 Jet motor
04/01/2010US20100078218 Drilling and opening reservoirs using an oriented fissure to enhance hydrocarbon flow
04/01/2010US20100078217 Method and assembly for abrasive jet drilling
04/01/2010US20100078215 Designing drilling pattern for excavating rock cavern
04/01/2010CA2738008A1 Modular rotary drill head
04/01/2010CA2735901A1 Deep sea mining riser and lift system
03/2010
03/31/2010CN201435708Y Constant frequency and constant pressure generating set
03/31/2010CN201434029Y Main brake safety mechanism
03/31/2010CN201433730Y Dedusting device for gas drilling
03/31/2010CN201433718Y Horizontal directional through-passing drill bit with debris discharging chute structure
03/31/2010CN201433717Y Horizontal directional through-passing drill bit with reverse nozzle
03/31/2010CN201433714Y Water well drilling machine
03/31/2010CN201433713Y Downhole branching device capable of realizing downhole mechanical and hydraulic seal for branch well
03/31/2010CN201433712Y hydraulic high-speed drilling machine
03/31/2010CN201433711Y Drilling equipment used for dig drilling machine
03/31/2010CN101688433A Parallel drilling and completion for a dry tree floating production facility
03/31/2010CN101688432A Method and apparatus for drilling hole into bedrock
03/31/2010CN101684721A Underground drill rig feed driving device
03/30/2010US7686103 Drill bit with radially expandable cutter, and method of using same
03/30/2010US7686101 Method and apparatus for laterally drilling through a subterranean formation
03/30/2010CA2536928C A method of geothermal loop installation
03/30/2010CA2536372C Fluid loss control and sealing agent for drilling depleted sand formations
03/30/2010CA2444815C Torque-generating apparatus
03/25/2010WO2010033935A2 Pivotable tower for angled drilling
03/25/2010WO2010033534A1 Articulation assembly for moving a drill mast
03/25/2010WO2010011282A3 System and method for driving pile under water
03/25/2010WO2010010487A3 System and method for drilling a borehole
03/25/2010US20100071958 Blast Hole Drill Bit Carousel And A Blast Hole Drill Including A Blast Hole Drill Bit Carousel
03/25/2010US20100071957 Drill-In Fluids For Oil and Gas Reservoirs With High Carbonate Contents
03/25/2010US20100071956 Drill Bit With Adjustable Axial Pad For Controlling Torsional Fluctuations
03/24/2010EP2165039A1 A device for drilling in earth-layers and rock
03/24/2010CN201428909Y Adjustable display support
03/24/2010CN201428385Y Multifunctional drilling machine and mast rotary device thereof
03/24/2010CN201428381Y Drilling device with fishable drill bushing
03/24/2010CN201428380Y String pulling and running operation automatic conveyor
03/24/2010CN201428379Y Dematron rig
03/24/2010CN201428378Y Drill for recycling tower crane foundation screws
03/24/2010CN201428377Y Mine pneumatic outburst-prevention driller
03/24/2010CN201428376Y Coupling drill housing for mine pneumatic outburst-prevention driller
03/24/2010CN101680270A Subsea well control system and method
03/24/2010CN101680269A Boring system
03/24/2010CN101680268A Method of quarrying dimensional stone, and line drilling apparatus
03/24/2010CN101680267A Sound dampening housing for rock drill
03/24/2010CN101676521A Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system
03/24/2010CN101676520A Horizontal guiding drill while-drilling acoustic wave imaging detection early warning system and detection method thereof
03/24/2010CN101676519A Wake-up and management module of horizontal guiding drill while-drilling detection early warning power supply
03/24/2010CN101676518A Horizontal guiding drill while-drilling detection early warning system
03/24/2010CN101676514A Pneumatic drill
03/23/2010US7683296 Adjusting alloy compositions for selected properties in temperature limited heaters
03/23/2010US7681672 Cryogenic pulsejet and method of use
03/23/2010US7681665 Downhole hydraulic control system
03/23/2010US7681664 Internally dampened percussion rock drill
03/23/2010US7681663 Methods and systems for determining angular orientation of a drill string
03/23/2010US7681662 Water bottom ore sampler and method of using the same
03/23/2010US7681660 Arrangement for positioning drilling unit
03/23/2010US7681658 Pneumatic impact tool
03/23/2010CA2539097C Steerable bit assembly and methods
03/18/2010WO2010029281A1 Settable compositions comprising cement kiln dust and swellable particles
03/18/2010WO2010029220A1 Method of cracking rock material, and breaking device
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