| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 09/29/2005 | US20050214079 Use of hydrate slurry for transport of associated gas |
| 09/29/2005 | US20050212519 Boring tool tracking/guiding system and method with unconstrained target location geometry |
| 09/29/2005 | US20050211473 System and method for directional drilling utilizing clutch assembly |
| 09/29/2005 | US20050211470 Bottom hole assembly |
| 09/29/2005 | US20050211469 Elongated coil assembly for electromagnetic borehole surveying |
| 09/29/2005 | US20050211468 Method and apparatus and program storage device adapted for automatic drill string design based on wellbore geometry and trajectory requirements |
| 09/29/2005 | CA2554294A1 Blade assembly especially for an ice auger or like |
| 09/28/2005 | EP1580398A1 Apparatus and method for subsoil construction |
| 09/28/2005 | EP1579104A1 Bit assembly for a hammering drill |
| 09/28/2005 | CN2729291Y Vehicle drilling machine |
| 09/28/2005 | CN2729290Y Pile drilling machine with main power driven by stepless speed regulating motor |
| 09/28/2005 | CN2729152Y Rotation digging-drilling machine for scratching and taking solt through hollow cavity inner hole of hollow pile |
| 09/27/2005 | US6948572 Command method for a steerable rotary drilling device |
| 09/27/2005 | US6948562 Production of a blending agent using an in situ thermal process in a relatively permeable formation |
| 09/27/2005 | CA2502165A1 Bottom hole assembly |
| 09/22/2005 | WO2005087393A1 Vibrational heads and assemblies and uses thereof |
| 09/22/2005 | WO2005001232A3 Determination of thermal properties of a formation |
| 09/22/2005 | US20050209782 Rotary downlink system |
| 09/22/2005 | US20050205253 Apparatus for expanding a tubular member |
| 09/22/2005 | US20050205250 Apparatus and methods for drilling with casing |
| 09/22/2005 | DE102005008430A1 Verfahren und Vorrichtung zum Bohren eines Bohrlochs von einem entfernten Ort aus Method and apparatus for drilling a borehole from a remote location |
| 09/22/2005 | DE102004020065B3 Connecting system for pipes used in pipe screens for supporting roofs during tunneling comprises sleeve formed on one pipe end, end of other pipe plugging into this and sleeve being crimped into preformed peripheral grooves on it |
| 09/21/2005 | EP1157169A4 Short aggregate pier techniques |
| 09/21/2005 | CN1670330A Treatment method of drilling fluid in sal prunella mine lateral well drilling process |
| 09/20/2005 | US6945336 Rotational float for rotating equipment |
| 09/20/2005 | US6945328 Lockable motor assembly for use in a well bore |
| 09/15/2005 | WO2005085582A1 Single pass drilling apparatus, use a one -piece drill bit, method and rock bolt for single pass rock bolting. |
| 09/15/2005 | WO2005085580A1 A method and device for establishing an underground well |
| 09/15/2005 | WO2005085579A1 Boring system and method therefor |
| 09/15/2005 | WO2005084376A2 Rotating systems associated with drill pipe |
| 09/15/2005 | WO2005062749A3 System for drilling oil and gas wells using a concentric drill string to deliver a dual density mud |
| 09/15/2005 | US20050199426 Rotatable drill shoe |
| 09/15/2005 | US20050199424 Apparatus and method for horizontal drilling |
| 09/15/2005 | US20050199423 High frequency pressure compensator |
| 09/15/2005 | US20050199405 Device producing hammering |
| 09/15/2005 | US20050198821 Machining tool and method for repair of rotor teeth in a generator |
| 09/15/2005 | CA2559140A1 A method and device for establishing an underground well |
| 09/15/2005 | CA2554598A1 Single pass drilling apparatus, use a one -piece drill bit, method and rock bolt for single pass rock bolting |
| 09/14/2005 | EP1574663A1 Hand held electric tool |
| 09/14/2005 | EP1573170A1 Method and system for circulating fluid in a well system |
| 09/14/2005 | EP1395729B1 Method of forming a trenchless flowline |
| 09/14/2005 | CN2725498Y Rotating apparatus |
| 09/14/2005 | CN2725497Y Drill rod driving buffer device |
| 09/14/2005 | CN1667202A Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation |
| 09/14/2005 | CN1219152C Desert screw drilling machine vehicle |
| 09/13/2005 | US6943697 Reservoir management system and method |
| 09/13/2005 | US6942044 Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 09/13/2005 | US6942038 Mud diverter and method for horizontal drilling |
| 09/13/2005 | CA2355103C Hydraulic underreamer and sections for use therein |
| 09/13/2005 | CA2351248C Balanced torque drilling system |
| 09/13/2005 | CA2344631C Bent sub assembly for directional drilling |
| 09/13/2005 | CA2327920C Apparatus and method for simultaneous drilling and casing wellbores |
| 09/13/2005 | CA2199825C Apparatus for milling a well casing |
| 09/12/2005 | CA2460788A1 Magnetic field enhancement for use in passive ranging |
| 09/09/2005 | WO2005083224A1 Directional driving device |
| 09/08/2005 | US20050194832 Crushing method using large boreholes in underwater rock |
| 09/08/2005 | US20050194189 Mobile drilling rig |
| 09/08/2005 | US20050194188 Method of drilling and completing multiple wellbores inside a single caisson |
| 09/08/2005 | US20050194187 Rotating systems associated with drill pipe |
| 09/08/2005 | US20050194186 Apparatus and method for pressure-compensated telemetry and power generation in a borehole |
| 09/08/2005 | US20050194151 Expandable anchor |
| 09/08/2005 | US20050193645 Automatic method for installing mobile drilling rig at a drilling site |
| 09/07/2005 | EP1570150A1 One-step directional coring or drilling system |
| 09/07/2005 | CN2723665Y Bucket opening type drilling rig |
| 09/07/2005 | CN2723664Y Bucket bottom opening drilling rig |
| 09/07/2005 | CN2723663Y Screw digging drilling rig power head |
| 09/07/2005 | CN2723662Y Multiple shaft drilling rig power head |
| 09/07/2005 | CN2723661Y Well-rig |
| 09/07/2005 | CN1664308A Wellbore drilling system and method |
| 09/07/2005 | CN1664299A Driller capable of being quick mounted and dismounted and method for transferring same |
| 09/07/2005 | CN1664248A Crushing method using large boreholes in underwater rock |
| 09/07/2005 | CN1218112C Method of creating well bore |
| 09/06/2005 | US6938708 Electrically sequenced tractor |
| 09/06/2005 | CA2287050C Rotating push rod boring system |
| 09/06/2005 | CA2196382C Mechanical set anchor with slips pocket |
| 09/01/2005 | WO2005080742A1 Casing and liner drilling bits, cutting elements therefor, and methods of use |
| 09/01/2005 | US20050189144 Mud saver valve |
| 09/01/2005 | US20050189142 Wellbore drilling system and method |
| 08/31/2005 | EP1567747A1 Method to install underground pipe casing |
| 08/31/2005 | EP1567746A1 Apparatus and method for opening and closing lateral boreholes |
| 08/31/2005 | EP1567724A2 Method and apparatus for sub-sea pile-driving |
| 08/31/2005 | EP1436482A4 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 08/31/2005 | EP1390601A4 Method and apparatus for determining drilling paths to directional targets |
| 08/30/2005 | US6935439 Boring tool control using remote locator |
| 08/30/2005 | US6935431 Well reference apparatus and method |
| 08/30/2005 | CA2361359C Method and apparatus for multilateral junction |
| 08/25/2005 | WO2005078236A1 Method and system for lining multilateral wells |
| 08/25/2005 | WO2005078231A1 Tool and method for drilling, reaming and cutting |
| 08/25/2005 | WO2005031389A3 Obstacle detection for underground operations |
| 08/25/2005 | US20050183892 Casing and liner drilling bits, cutting elements therefor, and methods of use |
| 08/25/2005 | US20050183891 Tool and method for drilling, reaming, and cutting |
| 08/25/2005 | US20050183886 Method of coring a crustal core sample and flow-able coating material for coring a crustal core sample |
| 08/24/2005 | CN2720079Y Hydraulic driven well drilling machine |
| 08/24/2005 | CN1216227C Position-shifting diameter-changing stabilizer |
| 08/24/2005 | CN1216211C Spine-like bored concrete pile, construction technique and extrusion shaping machine thereof |
| 08/23/2005 | US6932171 Ground drilling machine |
| 08/18/2005 | DE10354082B4 Method for joining an underground product pipe to a collector pipe involves injection of a sealing foam into the space between a seal in a shield pipe and the collector pipe |
| 08/17/2005 | EP1564368A2 Underwater core sampling apparatus |
| 08/17/2005 | EP1564366A1 Method for trenchless laying of plastic pipes |
| 08/17/2005 | EP1563161A1 Re-entry in multilateral wellbores |