| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 05/24/2007 | CA2626925A1 Device and method for feeding particles into a stream |
| 05/23/2007 | EP1787007A2 Impact excavation system and method |
| 05/23/2007 | EP1787006A1 Method for drilling oil and gas wells |
| 05/23/2007 | EP1786716A1 Winch assembly |
| 05/23/2007 | EP1402146B1 Earth drilling device |
| 05/23/2007 | CN2903335Y Drill capable of arbitrarily selecting position |
| 05/23/2007 | CN2903333Y Self propelled type well repairing machine |
| 05/23/2007 | CN1966935A Method and apparatus for locating well casings from an adjacent wellbore |
| 05/23/2007 | CN1317483C Method of entering target geologic body and system |
| 05/22/2007 | US7219751 Apparatus for guiding and steering an earth boring machine and casing assembly |
| 05/22/2007 | US7219750 Process and system for drilling and lining a bore hole |
| 05/22/2007 | US7219749 Single solenoid guide system |
| 05/22/2007 | US7219746 Apparatus and method for installing a branch junction from a main well |
| 05/22/2007 | US7219727 Wear resistant tubular connection |
| 05/22/2007 | US7219726 Method and apparatus to vibrate a downhole component |
| 05/22/2007 | US7219722 Apparatus and methods for powering downhole electrical devices |
| 05/22/2007 | CA2376823C Apparatus and method for directional drilling with coiled tubing |
| 05/18/2007 | WO2007054154A2 Tool for drilling in earthy and/or rocky ground |
| 05/17/2007 | US20070108133 Method for constructing a synthetic infiltration collection system |
| 05/17/2007 | US20070107941 Extended reach drilling apparatus & method |
| 05/17/2007 | US20070107937 Rotary steerable tool including drill string rotation measurement apparatus |
| 05/17/2007 | US20070107911 Latchable hanger assembly for liner drilling and completion |
| 05/17/2007 | US20070107899 Perforating Gun Fabricated from Composite Metallic Material |
| 05/16/2007 | EP1785580A1 Process for laying pipes, reamer, boring machine and pipe |
| 05/16/2007 | EP1784555A1 Method and system for installing and maintaining a pipeline while minimizing associated ground disturbance |
| 05/16/2007 | EP1784553A1 Apparatus and method for joining a pipe conduit to a drilling device, expanding device, or feeding device |
| 05/16/2007 | CN2900757Y Full hydraulic omnibearing down the hole drill |
| 05/16/2007 | CN1965145A Enlarging and stabilising tool for a borehole |
| 05/16/2007 | CN1965143A Rotary vector gear for use in rotary steerable tools |
| 05/16/2007 | CN1963139A Self-injection underwater perforating twist-sucking drilling machine |
| 05/16/2007 | CN1963043A Construction method for mechanical hole reaming of anchor rod |
| 05/15/2007 | US7218244 Common interface architecture for horizontal directional drilling machines and walk-over guidance systems |
| 05/15/2007 | US7218116 Boring tool tracking/guiding system and method with unconstrained target location geometry |
| 05/15/2007 | US7217065 Modular pipe breaking assembly and method |
| 05/15/2007 | US7216727 Drilling bit for drilling while running casing |
| 05/15/2007 | US7216726 Downhole fluid-tight flexible joint |
| 05/15/2007 | US7216724 Coupling for dual member pipe |
| 05/15/2007 | US7216701 Apparatus for expanding a tubular member |
| 05/15/2007 | CA2533839C Method of determining a cross-load on a mobile repair unit for a well |
| 05/15/2007 | CA2207755C A drilling method and bit assembly to realize the method |
| 05/10/2007 | WO2002059447A9 Directional drilling apparatus |
| 05/10/2007 | US20070102201 Drill bit and system for drilling a borehole |
| 05/10/2007 | US20070102193 Construction machine for foundation construction |
| 05/09/2007 | EP1783281A1 Derrick for drilling or ramming tools |
| 05/09/2007 | EP1781889A1 Improvements in or relating to subsea drilling |
| 05/09/2007 | EP1781888A1 Mobile basket for consolidation work on walls |
| 05/09/2007 | CN2898109Y Hole expander of bored concrete pile |
| 05/09/2007 | CN1959058A Boring system of rotary dual jet flows under high pressure, and rotary dual jet flows nozzle under high pressure |
| 05/09/2007 | CN1314878C Flexible compound orienting screw drill |
| 05/08/2007 | US7213643 Expanded liner system and method |
| 05/08/2007 | CA2447196C Active/passive seal rotating control head |
| 05/03/2007 | WO2007050770A1 Extended reach drilling apparatus and method |
| 05/03/2007 | US20070095575 Adjustable bent housing |
| 05/03/2007 | US20070095573 Pressure controlled downhole operations |
| 05/03/2007 | US20070095572 Ballistic systems having an impedance barrier |
| 05/03/2007 | US20070095540 Apparatus and method for managed pressure drilling |
| 05/03/2007 | DE102005029595B4 Bohrgerät mit einem Mast und einer daran verschiebbaren Konsole für ein Bohrgestänge Drill with a mast and a slidable thereon console drill pipe |
| 05/03/2007 | CA2627284A1 Extended reach drilling apparatus and method |
| 05/02/2007 | EP1726187A4 Extracting and processing hydrocarbon-bearing formations |
| 05/02/2007 | EP1604093A4 Method and apparatus for drilling a borehole with a borehole liner |
| 05/02/2007 | CN2895729Y Bias regulator of oil-well pumping unit |
| 05/02/2007 | CN2895695Y Well-drilling vertical guide apparatus |
| 05/02/2007 | CN2895694Y Automatic inclination-resisting well-drilling apparatus |
| 05/02/2007 | CN2895693Y Non-digging underground pipeline hole-wall expansion-fore propeller |
| 05/02/2007 | CN1955437A Automatic anti-oblique well drilling tool |
| 05/01/2007 | US7212131 Controlling an underground object |
| 05/01/2007 | US7211548 Newberyite or struvite bridging agent; partially depolymerized starch derivative, especially a partially depolymerized crosslinked ether derivative of a starch; and a base fluid such as a drilling or well servicing fluid |
| 05/01/2007 | CA2517980C A pipe assembly and a method for installation in a borehole |
| 04/26/2007 | WO2007047800A2 Apparatus and method for managed pressure drilling |
| 04/26/2007 | WO2007024779B1 System for tracking and maintaining an on-grade horizontal borehole |
| 04/26/2007 | US20070089912 Downhole tool having radially extendable members |
| 04/26/2007 | US20070089910 Method of forming a bore |
| 04/26/2007 | US20070089909 Mechanically modified filter cake |
| 04/26/2007 | US20070089907 Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore |
| 04/26/2007 | US20070089906 Boring machine |
| 04/26/2007 | DE102005050217A1 Earth test boring/drilling device, e.g. for drainage, has test boring equipment with a casing and a drive mechanism for driving test boring equipment forwards and backwards |
| 04/25/2007 | EP1362159B1 Shoe with earth formation disiplacing structure |
| 04/25/2007 | CN1954130A Method and device for drilling holes in the ground or in rock |
| 04/25/2007 | CN1952343A Mechanical self-excited interactive hydraulic pulse drill bit pup joint |
| 04/25/2007 | CN1952342A Drill bit with pulse generation cavity |
| 04/25/2007 | CN1312377C Apparatus and method for operating drill head from ground surface when drilling |
| 04/25/2007 | CN1312376C Multifunctional drill machine and its construction method |
| 04/24/2007 | US7207401 One trip milling system |
| 04/24/2007 | US7207398 Steerable rotary drill bit assembly with pilot bit |
| 04/24/2007 | US7207395 Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement |
| 04/24/2007 | US7207390 Method and system for lining multilateral wells |
| 04/24/2007 | US7207215 System, method and apparatus for petrophysical and geophysical measurements at the drilling bit |
| 04/24/2007 | CA2246315C An apparatus and system for making at-bit measurements while drilling |
| 04/24/2007 | CA2185205C Steerable drilling tool and system |
| 04/19/2007 | WO2007044477A2 Remotely controlled decoking tool used in coke cutting operations |
| 04/19/2007 | WO2007044143A2 Method and apparatus for transmitting sensor response data and power through a mud motor |
| 04/19/2007 | WO2007042618A1 Method and rock drilling rig for hole drilling |
| 04/19/2007 | US20070084635 Boring Tool Tracking Fundamentally Based on Drill String Length, Pitch and Roll |
| 04/19/2007 | DE102005043111B3 Drilling jumbo has swiveling mounting, on which lafette is mounted which carries drill motor and drill at its upper end, lafette being slid along mounting using two cylinders whose piston rods are connected at their ends by slide |
| 04/19/2007 | CA2624975A1 Remotely controlled decoking tool used in coke cutting operations |
| 04/18/2007 | EP1436482B1 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 04/18/2007 | CN2890314Y Rotational flow guide generation device for use in casing operation |
| 04/18/2007 | CN2890313Y Internal-combustion jet-flow hole digger |
| 04/18/2007 | CN2890312Y Attached electric short auger drilling machine |
| 04/18/2007 | CN1948702A Well drilling method of multibranch well |