E21B 7 - Special methods or apparatus for drilling

Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
11/2011
11/23/2011	CN102251745A Positive pressure type rigid granule high-pressure injection device
11/23/2011	CN102251744A Annular patio drilling machine
11/23/2011	CN102251743A Percussion revolution drilling method
11/22/2011	US8061455 Drill bit with adjustable cutters
11/22/2011	US8061449 Housing arrangement
11/22/2011	US8061444 Methods and apparatus to form a well
11/22/2011	US8061441 Autonomous excavating apparatus
11/22/2011	US8061436 Mobile basket for consolidation work on walls
11/22/2011	US8061434 Percussion device
11/17/2011	WO2011142367A1 Steel wall and construction method for steel wall
11/17/2011	WO2011142047A1 Steel wall and method for constructing steel wall
11/17/2011	WO2011140625A1 An apparatus and a control method for controlling the apparatus
11/17/2011	WO2011037546A3 Method of disintegrating materials and device for performing the method
11/17/2011	US20110280664 Methods and apparatus for installing conduit underground
11/17/2011	US20110278071 Apparatus for rotary mining
11/17/2011	US20110278070 System and method for drilling lateral boreholes
11/17/2011	US20110278069 Method and apparatus for down-the-hole drilling
11/17/2011	US20110278068 Regenerative drive mechanism for hydraulic feed cylinders in hydrostatic or hydraulic circuits
11/17/2011	US20110278067 Systems and methods for well positioning using phase relations between transverse magnetic field components of a transverse rotating magnetic source
11/17/2011	US20110278064 Electronically activated underreamer and calliper tool
11/17/2011	US20110278014 External Jet Pump for Dual Gradient Drilling
11/17/2011	US20110278009 Method of drilling a wellbore
11/17/2011	US20110277998 Apparatus and Method for Setting a Tool in a Borehole
11/17/2011	DE102010034412B3 Rolling-drilling fixture for drilling large diameter holes into foundations for building of home, has eccentric body comprising channel unit connecting face region with cavity to guide dirt particles from region into cavity
11/17/2011	CA2794214A1 An apparatus and a control method for controlling the apparatus
11/16/2011	EP1769131B1 Drill head for a ground-boring device
11/16/2011	CN202039775U Pile hole forming device utilizing vibration, rotation and extrusion
11/16/2011	CN202039774U Automatic-moving hydraulic drilling machine used for coal mine
11/16/2011	CN202039773U Wide range lifting type deep hole drilling rig for mining
11/16/2011	CN1664308B Wellbore drilling system and method
11/16/2011	CN102245852A Sonic drill head
11/16/2011	CN102242604A Pulse spray nozzle
11/16/2011	CN102242603A Bottom drilling tool combination with double stabilizers resisting deviation by using prebuckling dynamics
11/16/2011	CN102242602A Spiral pile drilling machine
11/16/2011	CN101446178B Wind pressure air drilling equipment in downhole soft outbursting coal bed and process matched therewith
11/16/2011	CN101408089B Construction method of buried depth monitoring instrument poreforming and anchorage cable poreforming under unfavorable geological condition
11/15/2011	US8056649 Apparatus and methods for drilling wellbores that utilize a detachable reamer
11/15/2011	CA2568909C Reaming and stabilisation tool for use in a borehole
11/11/2011	CA2749316A1 Adjustable eccentric bushing assembly for a wireline-operated directional core barrel drill
11/10/2011	WO2011137494A1 Undercutting tool
11/10/2011	WO2011103270A3 Apparatus, system and method for releasing fluids from a subsea riser
11/10/2011	WO2011091368A3 System and method for performing an adaptive drilling operation
11/10/2011	US20110274492 Drilled underground gaseous storage system
11/10/2011	US20110272196 Drilling stabilizer
11/10/2011	US20110272194 Underwater drilling arrangement and method for introducing a tubular foundation element into the bed of a body of water
11/10/2011	US20110272139 System for drilling a wellbore
11/10/2011	CA2797744A1 Undercutting tool
11/09/2011	CN202034853U Power supply device used for guiding drilling tools
11/09/2011	CN202031586U Internal member of horizontal orientation sampling drilling tool
11/09/2011	CN202031514U Multifunctional and high-pressure milling cone
11/09/2011	CN202031488U Supporting device and engineering machine
11/09/2011	CN202031482U Square piston type anchoring and chambering drilling rig
11/09/2011	CN202031481U Positioning device used for rotary steering drilling tool with motor pump
11/09/2011	CN202031480U Silt stirrer for non-excavation guide drilling machine
11/09/2011	CN202031479U Coal seam gas branch well
11/09/2011	CN202031478U Novel hydraulic blasting drill rig
11/09/2011	CN202031477U Hydraulic power foundation drilling machine
11/09/2011	CN202031476U Multi-boom drill jumbo
11/09/2011	CN202031473U Hydraulic power piling drill rig
11/09/2011	CN1944941B Stepless speed regulating well repairing device
11/09/2011	CN102235153A Method for directionally drilling inclined hole in steeply-inclined stratum
11/09/2011	CN102235152A Hole-forming construction method for bored pile on high-strength stabilized soil layer
11/09/2011	CN102235151A Advanced hole-forming method of sand gravel boulder layer
11/09/2011	CN101581202B Upper feed pipe nipple device of riser pipe under simulated injection method
11/08/2011	US8051925 Core barrel assemblies with braking devices
11/08/2011	US8051924 Methods of braking core barrel assemblies
11/08/2011	CA2523505C Fast moving drilling rig
11/08/2011	CA2522568C Drill bit
11/04/2011	CA2737504A1 Drilling stabilizer
11/03/2011	WO2011112324A3 Feed chain automatic tensioner
11/03/2011	US20110266069 Casing shoes including cutting elements, cutting elements for earth-boring tool, and related methods
11/03/2011	US20110266063 Steerable drilling system
11/03/2011	US20110266062 Latching configuration for a microtunneling apparatus
11/03/2011	US20110266060 Expandable earth-boring wellbore reamers and related methods
11/03/2011	US20110266059 Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools
11/03/2011	US20110266058 PDC Sensing Element Fabrication Process and Tool
11/03/2011	US20110266053 Cartridge for breaking rock
11/02/2011	EP2383419A2 Device for inserting a standing pipe assembly into the soil
11/02/2011	EP2382367A2 Expandable stabilizer with roller reamer elements
11/02/2011	CN202023504U Rotary eccentric casing drilling device
11/02/2011	CN202023503U Particle punching drilling injection device
11/02/2011	CN202023502U Drill guider
11/02/2011	CN202023501U Up and down limiting device for movable arms of rotary drilling rig
11/02/2011	CN202022254U Support for longitudinal beam oil cylinder of rotary drilling rig
11/02/2011	CN102232138A Anti-whirl drill bits, wellsite systems, and methods of using the same
11/02/2011	CN102230363A Device and method for drilling and forming hole in coal rock in structural belt
11/02/2011	CN102230359A Horizontal zero-radius high-pressure hydraulic drilling method
11/02/2011	CN102230358A Integrally moving and cluster well switching device of drilling machine
11/02/2011	CN102230357A Method for forming ultra-deep anchor hole in loose accumulation body and breakage rock layer
11/01/2011	USRE42877 Methods and apparatus for wellbore construction and completion
11/01/2011	CA2634650C Permanent downhole deployment of optical sensors
10/2011
10/30/2011	CA2708903A1 Vibrating tool
10/27/2011	WO2011133544A2 Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors
10/27/2011	WO2011109585A3 Completion string deployment in a subterranean well
10/27/2011	WO2011094359A3 Drilling assembly with underreaming bit and method of use
10/27/2011	WO2011054020A3 Method for the drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material and device therefor
10/27/2011	US20110260480 Clamping head for an earth-drilling system
10/27/2011	US20110259645 Rotary steerable tool
10/27/2011	US20110259644 Curved structural pipe shoe
10/27/2011	US20110259643 Casing and liner drilling shoes having spiral blade configurations, and related methods

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