| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 12/26/2007 | CN100357564C Mine driller power-head drilling-angle adjusting mechanism |
| 12/26/2007 | CN100357530C Multifunctional turn digging dynamoelectric drilling machine |
| 12/26/2007 | CN100357527C Device for knobby pushing and expanding spiral immersed tube stake and its engineering method |
| 12/25/2007 | US7311157 Tool for controlling rotation of a bottom hole assembly with respect to a drillstring |
| 12/25/2007 | US7311156 Forward driving system for use in drilling masonry structures |
| 12/25/2007 | US7311151 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
| 12/25/2007 | US7311148 Methods and apparatus for wellbore construction and completion |
| 12/25/2007 | US7311011 Apparatuses for interaction with a subterranean formation, and methods of use thereof |
| 12/21/2007 | WO2007143773A1 Microtunnelling system and apparatus |
| 12/21/2007 | WO2007092066A3 Method for constructing a synthetic infiltration collection system |
| 12/21/2007 | WO2006083848A3 Sleeved hose assembly and method for jet drilling of lateral wells |
| 12/21/2007 | CA2649801A1 Microtunnelling system and apparatus |
| 12/20/2007 | US20070292212 Method and Device for Trenchless Laying of Pipelines |
| 12/20/2007 | US20070289778 Active vibration control for subterranean drilling operations |
| 12/19/2007 | EP1867830A1 Sleeve |
| 12/19/2007 | EP1867829A1 Apparatus and method for downhole dynamics measurements |
| 12/19/2007 | EP1867700A1 Systems and methods for remotely determining and changing cutting modes during decoking |
| 12/19/2007 | CN200992951Y Vertical drilling tool |
| 12/19/2007 | CN100356033C Drillable thin-walled hydraulic release device for liner and operation method thereof |
| 12/19/2007 | CN100356031C Drilling robot for installing pipe |
| 12/18/2007 | US7308953 Mobile drilling rig |
| 12/18/2007 | US7308952 Underbalanced drilling method and apparatus |
| 12/18/2007 | US7308951 Method of coring a crustal core sample and flow-able coating material for coring a crustal core sample |
| 12/18/2007 | US7308949 Concrete drill |
| 12/18/2007 | US7308946 Method of cleaning hole diggers and spot cultivators and hole digger cleaning device |
| 12/18/2007 | US7308940 Flexible wellbore broach |
| 12/18/2007 | US7308937 Expandable reamer apparatus for enlarging boreholes while drilling and methods of use |
| 12/18/2007 | CA2447565C Downhole motor locking assembly and method |
| 12/18/2007 | CA2314341C Method and apparatus for removing obstructions in mines |
| 12/13/2007 | WO2007143634A2 Insulation shroud with internal support structure |
| 12/13/2007 | WO2007143384A2 System and method for reducing the borehole gap for downhole formation testing sensors |
| 12/13/2007 | WO2007141550A1 Resonance enhanced drilling: method and apparatus |
| 12/13/2007 | US20070284149 Apparatus And Method For Joining A Pipe Conduit To A Drilling Device, Expanding Device Or Pull-In Device |
| 12/13/2007 | CA2654531A1 Resonance enhanced drilling: method and apparatus |
| 12/13/2007 | CA2653611A1 Downhole tool with sensors mounted on extendable hinged pads |
| 12/12/2007 | EP1613838B1 Drill hole measuring device and rock drilling unit |
| 12/12/2007 | CN200989168Y Gas pumping and discharging driller drilling azimuth on-line regulator |
| 12/12/2007 | CN200989164Y Pulsation pumping pressure drilling device for lowering underwell differential pressure |
| 12/12/2007 | CN200989163Y Vehicular integrated casing-off device |
| 12/12/2007 | CN200989162Y Hydraulic pulse cavitation jet-flow well drilling device and drill bit |
| 12/12/2007 | CN101086198A Method of creating a borehole in an earth formation |
| 12/11/2007 | US7307425 Receiver electronics proximate antenna |
| 12/11/2007 | US7306060 Drilling assembly with a steering device for coiled-tubing operations |
| 12/11/2007 | US7306058 Anti-rotation device for a steerable rotary drilling device |
| 12/11/2007 | US7306056 Directional cased hole side track method applying rotary closed loop system and casing mill |
| 12/11/2007 | US7306055 Automatic method for installing mobile drilling rig at a drilling site |
| 12/11/2007 | US7306053 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 12/11/2007 | CA2453980C Method of forming a tubing lined borehole |
| 12/06/2007 | WO2007139581A1 Method for varying the density of drilling fluids in deep water oil and gas drilling applications |
| 12/06/2007 | WO2007138314A1 Rotary steerable tool |
| 12/06/2007 | WO2007138121A1 Directable drill bit with integral rotation system |
| 12/06/2007 | WO2007137424A1 Impulse rotor generator |
| 12/06/2007 | WO2007105101A3 Mobile drilling rig with dual carriers |
| 12/06/2007 | CA2654320A1 Rotary steerable tool |
| 12/05/2007 | EP1862636A1 Working machine, especially a drilling rig |
| 12/05/2007 | EP1212510B1 Downhole latch assembly and method of using the same |
| 12/05/2007 | CN200985751Y Diameter variable wing fastening device |
| 12/05/2007 | CN200985745Y Vehicle mounted machine ground anchorage machine |
| 12/05/2007 | CN200985744Y Spiral drilling type rotary digging drill |
| 12/05/2007 | CN200985743Y Multifunctional rotary digging drill |
| 12/05/2007 | CN200985742Y Wire cable pressurization hoisting type rotary digging drill |
| 12/05/2007 | CN101082265A Working machine, especially a drilling rig |
| 12/04/2007 | US7303022 Wired casing |
| 12/04/2007 | CA2413395C Method and device for perforating a portion of casing in a reservoir |
| 12/04/2007 | CA2354692C Method and rock drilling apparatus for controlling rock drilling |
| 12/04/2007 | CA2323654C Wellbore antennae system and method |
| 11/30/2007 | CA2590309A1 Rotary steerable drilling apparatus and method |
| 11/29/2007 | WO2007136485A2 Methane extraction method and apparatus using high-energy diode lasers or diode-pumped solid state lasers |
| 11/29/2007 | WO2007134748A1 Directional control drilling system |
| 11/29/2007 | US20070274788 Single Pass Drilling Apparatus, Use of a One-Piece Drill Bit, Method and Rock Bolt for Single Pass Rock Bolting |
| 11/29/2007 | US20070272443 Downhole Steering |
| 11/29/2007 | CA2650645A1 Directional control drilling system |
| 11/28/2007 | EP1859120A1 New untraditional tunnel boring technique for all soil types |
| 11/28/2007 | CN200982164Y Intelligently controlled diameter-variable stabilizer |
| 11/28/2007 | CN200982157Y Quick production-resuming device for deep well litter of small well hole |
| 11/28/2007 | CN200982156Y Aerating artesian well gas injection device |
| 11/28/2007 | CN200982155Y 10 ton vehicle mounted electric drive well-repairing machine |
| 11/28/2007 | CN200982154Y Self-walking type reverse circulation drill |
| 11/28/2007 | CN101078335A Ultra-short radius radial horizontal well drilling, completion tool and technique thereof |
| 11/28/2007 | CN100351490C Omni-directional drilling machine |
| 11/27/2007 | US7301223 High temperature electronic devices |
| 11/27/2007 | US7299878 High pressure multiple branch wellbore junction |
| 11/27/2007 | CA2471335C A mining or tunnelling device |
| 11/27/2007 | CA2453774C Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 11/27/2007 | CA2447672C Lining and drilling a wellbore with an expandable bit |
| 11/22/2007 | WO2007134255A2 Stage cementing methods used in casing while drilling |
| 11/22/2007 | WO2007132407A1 Steering systems for coiled tubing drilling |
| 11/22/2007 | WO2007132232A1 A whipstock |
| 11/22/2007 | WO2007131788A1 Procedure and device for the optimal utilization of carbon resources such as oil fields, oil shales, oil sands, coal, and co2 |
| 11/22/2007 | WO2007024263B1 Portable electrocrushing drill |
| 11/22/2007 | US20070269274 Rock Bolt |
| 11/22/2007 | US20070267221 Methods and apparatus for drilling with casing |
| 11/22/2007 | US20070267220 Methane extraction method and apparatus using high-energy diode lasers or diode-pumped solid state lasers |
| 11/22/2007 | DE102006023505A1 Drill has carriage and drill rod drive arranged at carriage and hydraulic cylinder of driving unit is arranged at its end at other clamping unit and is supported at its other end in base area of carriage |
| 11/22/2007 | DE102006022613A1 Drilling drive unit for propelling drill pipe, comprises drill pipe, adjustable between release position, in which fuse element is at distance from drill pipe, where drill pipe is positively contacted form-fit by fuse element |
| 11/22/2007 | CA2652265A1 A whipstock |
| 11/22/2007 | CA2651591A1 Steering systems for coiled tubing drilling |
| 11/22/2007 | CA2589600A1 Methods and apparatus for drilling with casing |
| 11/21/2007 | EP1857631A1 Directional control drilling system |
| 11/21/2007 | EP1857402A2 Portable winch for the replacement of pipes |