E21B 7 - Special methods or apparatus for drilling

Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
08/2006
08/30/2006	EP1153195B1 Downhole apparatus and method for milling a window and at least one key-way in a well casing
08/30/2006	CN2811549Y Downhole milling and drilling tools
08/30/2006	CN2811548Y Downhole positioning device for expansion pipe
08/30/2006	CN2811536Y Module combination type multifunctional boring machine
08/29/2006	US7096982 Drill shoe
08/29/2006	US7096979 Continuous on-bottom directional drilling method and system
08/29/2006	US7096975 Modular design for downhole ECD-management devices and related methods
08/29/2006	US7096962 Wellbore recovery operation
08/29/2006	US7096942 In situ thermal processing of a relatively permeable formation while controlling pressure
08/29/2006	CA2294009C Apparatus for and a method of drilling a lateral borehole
08/24/2006	WO2006072761A3 Downhole tool
08/24/2006	WO2006070204A3 Improvements in or relating to a whipstock system
08/24/2006	WO2006047386A3 Underground piercing tool
08/24/2006	US20060185907 Device for transporting particles of a magnetic material and tool comprising such a device
08/24/2006	US20060185906 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
08/24/2006	US20060185902 Spring mechanism for downhole steering tool blades
08/24/2006	US20060185900 Programming method for controlling a downhole steering tool
08/24/2006	US20060185899 Underground drilling device employing down-hole radar
08/24/2006	US20060185898 Method and apparatus for stimulating wells with propellants
08/24/2006	US20060185843 Assembly and method for determining thermal properties of a formation and forming a liner
08/23/2006	EP0980461B1 Directional drilling apparatus
08/23/2006	CN1271307C Strong force propulsion plant of continuous tube
08/23/2006	CN1271306C Multilayer winding device of continuous tube
08/22/2006	US7093677 Percussion drill head
08/22/2006	US7093675 Drilling method
08/22/2006	US7093674 Drilling formation tester, apparatus and methods of testing and monitoring status of tester
08/22/2006	US7093673 Drilling device
08/22/2006	US7093672 Systems for deep resistivity while drilling for proactive geosteering
08/22/2006	US7093671 Pneumatic rock-boring device and method for starting such a device
08/22/2006	US7093662 System for drilling oil and gas wells using a concentric drill string to deliver a dual density mud
08/22/2006	US7093657 Earth loop installed with sonic apparatus
08/22/2006	CA2416134C Formation cutting method and system
08/22/2006	CA2366002C Three-dimensional steering tool for controlled downhole extended-reach directional drilling
08/17/2006	WO2006085105A1 Steerable rotary directional drilling tool for drilling boreholes
08/17/2006	WO2005021920A3 Downhole tubular splitter assembly and method
08/17/2006	US20060180352 Method and device for the drilling of holes in ground or rocky material
08/17/2006	US20060180351 Air injection collar
08/17/2006	US20060180350 Impact excavation system and method with particle trap
08/17/2006	US20060180313 Subsea hydraulic junction plate actuator with R.O.V. mechanical override
08/17/2006	CA2597390A1 Steerable rotary directional drilling tool for drilling boreholes
08/16/2006	EP1691030A1 Apparatus and method for directional drilling of holes
08/16/2006	EP1689966A1 Nozzle unit and method for excavating a hole in an object
08/16/2006	EP1689965A2 Low friction face sealed reaction turbine rotors
08/16/2006	EP1242711B1 Drilling bit for drilling while running casing
08/16/2006	CN1820119A Tool for excavating an object
08/16/2006	CN1818228A Formative method for row-pile style water-proof wall underground and spiral driller therefor
08/15/2006	US7090038 Bedrock drilling and excavating apparatus
08/15/2006	US7090023 Apparatus and methods for drilling with casing
08/15/2006	CA2331700C Pneumatic ground piercing tool with movable chisel head
08/15/2006	CA2257951C Drilling apparatus
08/10/2006	WO2006083848A2 Sleeved hose assembly and method for jet drilling of lateral wells
08/10/2006	WO2006050252A3 Improved underreamer and method of use
08/10/2006	WO2005108735A3 Systems and methods for remotely determining and changing cutting modes during decoking
08/10/2006	WO2005050777A3 Receiver electronics proximate antenna
08/10/2006	US20060175094 Jet assisted drilling method
08/10/2006	US20060175093 Method and device for boring holes in soil or rock
08/10/2006	DE202006009320U1 Sleeve pipe component for a drilling unit, comprises elements which ca be inserted into one another
08/09/2006	EP1687837A2 High temperature electronic devices
08/09/2006	EP1687508A1 Method of reducing sand production from a wellbore
08/09/2006	EP1687505A1 Fluid jet drilling tool
08/09/2006	CN2804360Y Double deck plat form with telescopic structure
08/09/2006	CN2804358Y Auto liquid discharger of underbalance drilling combustion pipeline
08/09/2006	CN1814983A Mine driller power-head drilling-angle adjusting mechanism
08/09/2006	CN1814915A Apparatus and method for long spiral-drilling enlarging-base agitation and reaming-in-hole concrete filling to form pile
08/08/2006	US7086808 Method and apparatus for on-grade boring
08/08/2006	US7086485 Directional casing drilling
08/08/2006	US7086484 Determination of thermal properties of a formation
08/08/2006	US7086481 Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling
08/08/2006	US7086478 Apparatus and methods for expanding tubulars in a wellbore
08/08/2006	US7086475 Method of inserting a tubular member into a wellbore
08/08/2006	US7086464 Well testing system
08/08/2006	CA2418708C Rotary control of rotary steerables using servo-accelerometers
08/08/2006	CA2373152C In-tubing wellbore sidetracking operations
08/08/2006	CA2367613C Dual diverter and orientation device for multilateral completions and method
08/03/2006	WO2005065364A3 Instrumented internal blowout preventer valve for measuring drill string drilling parameters
08/03/2006	US20060173626 Method for locating casing joints using measurement while drilling tool
08/03/2006	US20060169495 Sleeved hose assembly and method for jet drilling of lateral wells
08/03/2006	US20060169491 Method and arrangement for performing drilling operations
08/02/2006	EP1686236A1 System for drilling and completing multilateral wells
08/02/2006	EP1601854B1 Telescopic feed beam for rock drill and method of measuring rock drill travel
08/02/2006	EP1042587B1 System for drilling and completing multilateral wells
08/02/2006	CN2802065Y Mud pumping device
08/02/2006	CN2802061Y Excavating transporting device of drilling machine
08/01/2006	US7085696 Iterative drilling simulation process for enhanced economic decision making
08/01/2006	US7084636 Boring tool tracking/guiding system and method with unconstrained target location geometry
08/01/2006	US7083011 Fluid drilling head
08/01/2006	US7083010 Apparatus and method for drilling and reaming a borehole
08/01/2006	US7083008 Apparatus and method for pressure-compensated telemetry and power generation in a borehole
08/01/2006	US7083005 Apparatus and method of drilling with casing
08/01/2006	US7082997 Pipe centralizer and method of attachment
08/01/2006	US7082992 Oil well steel pipe for embedding-expanding
08/01/2006	CA2452087C Portable drilling rig
08/01/2006	CA2411290C Auger/vehicle interface jig
08/01/2006	CA2214552C Drill for making a pole in the ground and method applying this drill
07/2006
07/27/2006	US20060162964 Tool for excavating an object
07/27/2006	US20060162961 Sonic drill
07/26/2006	EP1682745A1 Method and device for the drilling of holes in ground or rocky material
07/26/2006	EP1682744A2 System for drilling oil and gas wells using a concentric drill string to deliver a dual density mud
07/26/2006	EP1434925B1 Wellbore recovery operation
07/26/2006	EP1402145B1 Closed loop drilling assembly with electronics outside a non-rotating sleeve

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