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)
05/2010
05/12/2010CN201460723U Combined drilling tool with drill hole control grouting device
05/12/2010CN201460722U Novel shifter for driller control house
05/12/2010CN201460714U Eccentric drilling tool
05/12/2010CN201460710U Full-hydraulic geological drilling rig
05/12/2010CN201459712U Single-power bidirectional soil-cement mixing pile mixing device
05/12/2010CN201458613U Rotary locking device
05/12/2010CN1900475B Drilling/feed drill/withdrawing drill sealing device for high pressure water rock layer and grouting withdrawing drill method
05/12/2010CN101705789A Hydraulic pulse cavitation jet well drilling method
05/12/2010CN101705788A Construction method using blowout plug to shield oblique drilling hole
05/12/2010CN101705787A Rotary steerable system and rotary steerable executor for drilling
05/12/2010CN101705786A Pot hole drilling machine carried on vehicle
05/12/2010CN101105115B Waterpower pulse cavitation jet well drilling device and drill bit
05/11/2010US7712545 Telescopic feed beam for rock drill
05/11/2010CA2499725C One-step directional coring or drilling system
05/11/2010CA2463953C System for lining a section of a wellbore
05/11/2010CA2406784C Method of increasing the low shear rate viscosity and shear thinning index of divalent cation-containing fluids and the fluids obtained thereby
05/11/2010CA2382668C Fluid driven mud pump
05/06/2010WO2010049677A1 Anti-whirl drill bits, wellsite systems, and methods of using the same
05/06/2010WO2010049326A2 Maintenance system
05/06/2010WO2010017200A3 Subsea differential-area accumulator
05/06/2010US20100108397 Earth-boring tools having threads for affixing a body and shank together and methods of manufacture and use of same
05/06/2010US20100108392 Method and apparatus for constructing deep vertical boreholes and underground cut-off walls
05/06/2010US20100108391 Drill bit assembly and method of performing an operation in a wellbore
05/06/2010US20100108389 Distance holder with helical slot
05/06/2010US20100108388 Apparatus and system and method for down the hole carousel drilling
05/06/2010US20100108386 System, apparatus, and method of conducting measurements of a borehole
05/06/2010US20100108385 Downhole Jack Assembly Sensor
05/06/2010US20100108383 Drilling Apparatus and Method
05/06/2010US20100108382 Shape Memory Alloy Actuated Steerable Drilling Tool
05/06/2010US20100108380 Methods and apparatuses for estimating drill bit cutting effectiveness
05/06/2010US20100108379 Systems and methods of forming subsurface wellbores
05/06/2010US20100108322 Parallel drilling and completion for a dry tree floating production facility
05/06/2010US20100108319 Reduced Waste Cleaning Methods for Oil Well Related Systems
05/06/2010US20100107956 Modular naval complex and equipped modules intended to be part of said naval complex
05/06/2010CA2741618A1 Anti-whirl drill bits, wellsite systems, and methods of using the same
05/05/2010EP2182165A2 Drilling apparatus and method
05/05/2010EP2181237A1 Drill device having a rotary-vibratory drive
05/05/2010CN201448053U Tracked normal and reverse circulation drill
05/05/2010CN201448052U Anti back-dragging rebounding system for non-excavation pipe-laying drilling rig
05/05/2010CN1965145B Enlarging and stabilising tool for a borehole
05/05/2010CN101701518A Pipe string used for high-speed test of pressure control and water stabilization of horizontal well
05/05/2010CN101701506A Drilling tool structure with three stabilizers
05/05/2010CN101701505A Sleeve pore-fixing device and method
05/05/2010CN101701504A T-shaped function integration type integral piston for propulsion cylinder of downhole drill
05/04/2010US7708499 Clamp systems and methods for pile drivers and extractors
05/04/2010US7708088 Vibrating downhole tool
04/2010
04/29/2010WO2010046757A1 Self-propelled drilling machine for core sampling
04/29/2010WO2009156739A3 Reaming tool
04/29/2010WO2009135119A4 Modular hybrid drill bit
04/29/2010US20100101864 Anti-whirl drill bits, wellsite systems, and methods of using the same
04/29/2010US20100101863 Sonic drill rod with external surface features
04/29/2010US20100101862 Method and device for controlling a rock drill rig
04/29/2010US20100101860 Phase Estimation From Rotating Sensors To Get a Toolface
04/28/2010EP2180349A2 Downhole surveying utilizing multiple measurements
04/28/2010EP2179122A2 Whipstock assembly
04/28/2010CN201443319U Automatic hydraulic pressure regulation device for drill bit of ground anchor machine
04/28/2010CN201443301U Novel drilling tool of petroleum horizontal multilateral well
04/28/2010CN1774558B Underground high pressure continuous flow jet drilling tool and rock drilling method thereof
04/28/2010CN101699027A Underground oil- water two-phase flow rate measuring method used for low production liquid horizontal well
04/28/2010CN101699019A Device for reconstructing well head with fire for oil-gas well out of control
04/28/2010CA2642704A1 Improved acid tunneling bottom hole assembly and method utilizing reversible knuckle joints
04/27/2010US7703549 Method and apparatus for removing cuttings in high-angle wells
04/27/2010US7703534 Underwater seafloor drilling rig
04/27/2010CA2595026C Downhole drilling apparatus and method for use of same
04/27/2010CA2439912C Jet cutting device with deflector
04/22/2010WO2010045205A2 Sonic drill head
04/22/2010WO2010045115A2 Treating subsurface hydrocarbon containing formations and the systems, methods, and processes utilized
04/22/2010WO2010043757A1 Method and drilling apparatus for down-the-hole drilling
04/22/2010US20100096186 Downhole surveying utilizing multiple measurements
04/22/2010DE102008049510A1 Device for sinking end diameter proximity vertical and slanting bores in sandy soil, has washing-up liquid line extending in driven drilling rod with reversal coil head, where opening diameter of rod corresponds to inner diameter
04/22/2010CA2852209A1 Sonic drill head
04/22/2010CA2740432A1 Sonic drill head
04/21/2010EP2177710A1 Three dimensional steerable system
04/21/2010EP2176497A1 Equipment for excavation of deep boreholes in geological formation and the manner of energy and material transport in the boreholes
04/21/2010EP2176496A1 Hydrothermal energy and deep sea resource recovery system
04/21/2010EP2176495A1 Motor bit system
04/21/2010EP2176494A1 Method and system for steering a directional drilling system
04/21/2010EP2176493A1 Drill bit gauge pad control
04/21/2010EP2176492A1 Method and apparatus for drilling hole into bedrock
04/21/2010CN101696628A Steering bias tool and steering bias method
04/21/2010CN101696622A Single acting connector capable of changing angle to drive
04/21/2010CN101696620A Drilling system of semi-submersible type drilling platform
04/20/2010US7699123 Bore hole sleeve reaming apparatus and method
04/20/2010US7699120 On demand actuation system
04/20/2010US7699107 Mechanical and fluid jet drilling method and apparatus
04/20/2010CA2683236A1 Method and apparatus for sealing wells in co2 sequestration projects
04/20/2010CA2585476C Drilling with concentric strings of casing
04/20/2010CA2492626C Flexible wellbore broach
04/20/2010CA2479236C Method and device for directional down-hole drilling
04/20/2010CA2467003C Fluid drilling head
04/15/2010WO2010042725A2 Methods and apparatus for wellbore enhancement
04/15/2010WO2010042723A2 Methods and apparatus for thermal drilling
04/15/2010WO2010042720A2 Methods and apparatus for thermal drilling
04/15/2010WO2010042719A2 Methods and apparatus for mechanical and thermal drilling
04/15/2010WO2010041292A1 Oil field regeneration method and device
04/15/2010US20100089650 Drilling fluid and method for drilling in coal-containing formations
04/15/2010US20100089649 Drill bit with continuously sharp edge cutting elements
04/15/2010US20100089648 Fixed Bladed Bit that Shifts Weight between an Indenter and Cutting Elements
04/15/2010US20100089647 Drilling Method
04/15/2010US20100089646 Sonic drill head
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