| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 04/17/2008 | US20080087468 a frame, a tower that is supported by the frame, two tracks for movement over the ground, at least three yokes that interconnect the frame and the two tracks, at least three hydraulic cylinders, an inclinometer that senses the inclination of the frame and produces an output signal that is indicative |
| 04/17/2008 | US20080087423 Method and Apparatus for a Monodiameter Wellbore, Monodiameter Casing, Monobore, and/or Monowell |
| 04/17/2008 | US20080087418 Pipeline |
| 04/17/2008 | CA2666465A1 Method and apparatus for running tubulars |
| 04/16/2008 | CN201047255Y Power head output shaft device of horizontal directional drilling rig |
| 04/16/2008 | CN101163848A A method of geothermal loop installation |
| 04/15/2008 | US7357616 Method and apparatus for transporting oil rig |
| 04/15/2008 | US7357200 Earth auger |
| 04/15/2008 | US7357190 Radial expansion of tubular members |
| 04/15/2008 | US7357188 Mono-diameter wellbore casing |
| 04/15/2008 | US7357182 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 04/15/2008 | CA2282342C Bottomhole assembly and methods of use |
| 04/10/2008 | WO2008042258A2 Bit assembly for down-hole drills |
| 04/10/2008 | WO2008040837A1 Arrangement for foundation |
| 04/10/2008 | US20080083565 Method of geothermal loop installation |
| 04/09/2008 | EP1907664A1 System and method for dynamic sealing around a drill stem |
| 04/09/2008 | EP1907663A1 Dth-hammer drilling device and overburden drilling method |
| 04/09/2008 | EP1563161B1 Re-entry in multilateral wellbores |
| 04/09/2008 | EP1552103B1 Drill head steering |
| 04/09/2008 | CN201045281Y Well bore guiders |
| 04/09/2008 | CN101158271A Oil-water well oil layer positioning deep penetration horizontal drilling device |
| 04/09/2008 | CN101158270A Prime hole reverse pushing construction method in horizontal orienting drilling and prime hole reverse pushing device |
| 04/09/2008 | CN101158269A Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit |
| 04/09/2008 | CN101158268A Construction method for super-long high-precision horizontal drilling |
| 04/09/2008 | CN101158267A Method and system for accessing subterranean deposits from the surface |
| 04/09/2008 | CN100379936C Automatically controlled rotation-controllable drilling system |
| 04/08/2008 | US7353891 Systems and methods for the installation of earth anchors |
| 04/08/2008 | US7353887 Control systems and methods for active controlled bottomhole pressure systems |
| 04/08/2008 | US7353867 Whipstock assembly and method of manufacture |
| 04/08/2008 | CA2509347C Method of and apparatus for directional drilling |
| 04/08/2008 | CA2444555C Apparatus and methods for drilling with casing |
| 04/08/2008 | CA2423107C Well drilling method and system |
| 04/03/2008 | WO2008039523A1 Monitor and control of directional drilling operations and simulations |
| 04/03/2008 | WO2008037947A1 Direction adjustment tool for downhole drilling apparatus |
| 04/03/2008 | WO2008015632A3 Technique and apparatus for drilling and completing a well in one half trip |
| 04/03/2008 | WO2007081797A3 Rotary fluid-sealing structure using speed-reduction stages |
| 04/03/2008 | US20080078965 Blowout preventer and pump rod clamp |
| 04/03/2008 | US20080078584 Bit assembly for down-hole drills |
| 04/03/2008 | DE10311186B4 Verfahren zur Beschleunigung der Restverwesung von Wachsleichen A method for accelerating the decay of residual wax corpses |
| 04/03/2008 | DE102006060415B3 Ground processing tool for inserting a heat probe line into the ground comprises a holder arranged on a carriage for holding a boom for an additional load on the carriage |
| 04/03/2008 | DE102006059171B3 Double drilling-rod type drilling installation, has connection on outer rod for forming liquid connection to annular cavity between rods |
| 04/03/2008 | DE102006045557A1 Gestängemitnehmer Gestängemitnehmer |
| 04/03/2008 | DE102006043772A1 Verfahren und Vorrichtung zum Ersetzen erdverlegter Altleitungen Method and apparatus for replacing underground old pipes |
| 04/03/2008 | CA2659453A1 Monitor and control of directional drilling operations and simulations |
| 04/02/2008 | EP1905945A1 Auger for drilling an earth borehole |
| 04/02/2008 | CN201043441Y Diameter-varying azimuth stabilizer |
| 04/02/2008 | CN100378715C System and method for data retrieval in AC power tools via an AC line cord |
| 04/02/2008 | CN100378289C Mechanical automatic vertical drilling tool |
| 04/01/2008 | US7350596 Methods and apparatus for expanding the diameter of a borehole |
| 04/01/2008 | US7350595 Drilling device and drilling method |
| 04/01/2008 | CA2479543C Method and system for building modular structures from which oil and gas wells are drilled |
| 04/01/2008 | CA2474230C Command method for a steerable rotary drilling device |
| 04/01/2008 | CA2474223C Fulcrum bearing assembly for a steerable rotary drilling device |
| 04/01/2008 | CA2308944C Well reference apparatus and method |
| 03/28/2008 | CA2561421A1 Auger stabilizer |
| 03/27/2008 | WO2008034970A1 Accessory for assisting in drilling a network of radial galleries from the same site situated close to the ground level |
| 03/27/2008 | WO2008015402A3 Running bore-lining tubulars |
| 03/27/2008 | US20080073123 Dual-member auger boring system |
| 03/27/2008 | CA2663533A1 Method of directional drilling with steerable drilling motor |
| 03/26/2008 | EP1903178A2 Three dimensional steerable system |
| 03/26/2008 | CN201041002Y Impactor used matching with DTH drill |
| 03/26/2008 | CN201041001Y Drilling well bottom bushing longitudinal locking device |
| 03/26/2008 | CN201041000Y Drilling well bottom bushing peripheral locking device |
| 03/26/2008 | CN201040999Y Splicing type falling-proof device |
| 03/26/2008 | CN201040500Y Transporting device for modular well drilling equipment |
| 03/26/2008 | CN100376763C Strapdown type stable platform apparatus |
| 03/25/2008 | US7347283 Using a rotating inner member to drive a tool in a hollow outer member |
| 03/25/2008 | US7347282 Steerable soil penetration system |
| 03/25/2008 | US7347280 Establishing positions of locating field detectors and path mapping in underground boring tool applications |
| 03/25/2008 | CA2494237C Drill tool shaft-to-housing locking device |
| 03/25/2008 | CA2385426C Method and device for moving a tube in a borehole in the ground |
| 03/20/2008 | WO2008033790A2 System and methods for handling drilling pipe |
| 03/20/2008 | WO2008032112A1 Well construction and completion |
| 03/20/2008 | WO2008031536A1 Method and device for replacing old undergound pipes |
| 03/20/2008 | WO2008011982A9 Device for connecting a section of a pipe run to a pulling element |
| 03/20/2008 | WO2008010173A3 Drilling apparatus |
| 03/20/2008 | US20080068929 Oscillating shear valve for mud pulse telemetry |
| 03/20/2008 | US20080066967 Apparatus and method of anchoring a horizontal directional drilling machine |
| 03/20/2008 | US20080066965 Methods and apparatus for attenuating drillstring vibrations |
| 03/20/2008 | US20080066926 Protective sleeve for threaded connections for expandable liner hanger |
| 03/20/2008 | US20080066922 Method and Arrangement by a Workover Riser Connection |
| 03/20/2008 | US20080066903 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/20/2008 | DE19957903B4 Bohr- und Ankersetzgerät mit als Führungen ausgebildeten Grippern Drilling and bolting device with trained as guides grippers |
| 03/19/2008 | EP1899570A1 Drilling rig placed on the sea bed and equipped for drilling of oil- and gas wells |
| 03/19/2008 | EP1525371B1 Telescopic guide line for offshore drilling |
| 03/19/2008 | CN201037378Y Directional bending nozzle |
| 03/19/2008 | CN201037377Y Horizontal positioning drilling machine valve control interflow speeding up hydraulic system |
| 03/19/2008 | CN201037376Y Wellbore track drill following smoothing equipment |
| 03/19/2008 | CN101144389A Gridding type layer-through drilling pore group permeability-increasing gas pumping method |
| 03/19/2008 | CN101144278A Integrated multifunctional hole-drilling pile-filling machine |
| 03/18/2008 | US7343988 Drilling apparatus |
| 03/18/2008 | US7343985 Bit balling treatment |
| 03/18/2008 | US7343983 Method and apparatus for isolating and testing zones during reverse circulation drilling |
| 03/13/2008 | US20080060850 System and methods for handling drilling pipe |
| 03/13/2008 | US20080060849 Shape memory alloy vibration isolation device |
| 03/13/2008 | US20080060807 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060806 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060805 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060804 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060800 Method and system for accessing subterranean deposits from the surface |