| Patents for E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619) |
|---|
| 02/22/2006 | EP1627127A2 Fast moving drilling rig |
| 02/22/2006 | CN2760213Y A drilling machine |
| 02/21/2006 | CA2198237C Arrangement in boom for rock drilling unit |
| 02/15/2006 | CN2758444Y Drill rod lifting device of rotary excavating driller |
| 02/15/2006 | CN2758443Y Self assembling self disassembling device of rotary digging drilling machine multi section drill rod |
| 02/15/2006 | CN2758442Y Drilling cramp for submarine hole drill machine |
| 02/14/2006 | US6997251 Method and apparatus for controlling the ascent and descent of pipe in a well bore |
| 02/09/2006 | US20060027373 Drilling rig apparatus and downhole tool assembly system and method |
| 02/08/2006 | CN2756808Y Derrick for petroleum drilling and repair equipment |
| 02/08/2006 | CN2756807Y Folding type derrick for drilling bit |
| 02/08/2006 | CN2756806Y New vertically mounting and lifting drilling bit derrick |
| 02/08/2006 | CN2756805Y New derrick base of petroleum drilling |
| 02/08/2006 | CN2756804Y Derrick extendible connection device |
| 02/07/2006 | US6994171 Two section mast with self-aligning connections |
| 02/01/2006 | EP1620610A2 Structural connector for a drilling rig substructure |
| 02/01/2006 | CN1239807C Boom arrangement for rock drilling apparatus |
| 01/31/2006 | CA2354567C Method for correcting positioning errors in rock drilling, and a rock drilling equipment |
| 01/26/2006 | US20060016625 Hydraulic drilling machine for working in a small space |
| 01/26/2006 | US20060016621 Method and system for deep sea drilling |
| 01/26/2006 | DE10206645B4 Vorrichtung zum Einlegen und Entnehmen von Bohrgestängen in und aus Horizontalbohranlagen Apparatus for inserting and removing drill rods in and out of horizontal directional drilling |
| 01/18/2006 | EP1617038A1 A rock drilling equipment |
| 01/17/2006 | CA2163322C Method and apparatus for isolating a rotary bushing from a drilling rig floor |
| 01/12/2006 | WO2005108736A3 Modular drill system requiring limited field assembly |
| 01/05/2006 | US20060000644 Drill head steering |
| 01/05/2006 | DE19814033B4 Bohrgestängeführung und Bohrgerät mit Bohrgestängeführung Bohrgestängeführung and drill with Bohrgestängeführung |
| 01/04/2006 | EP1611311A1 System and method for treating drilling mud in oil and gas well drilling applications |
| 01/04/2006 | EP1436483B1 Multi-functional drilling vehicle |
| 12/28/2005 | CN1714223A Drill head steering |
| 12/22/2005 | WO2005120153A2 Method and system for deep sea drilling |
| 12/22/2005 | WO2005059297A3 Method of using a multipurpose unit with multipurpose tower and a surface blow out preventer |
| 12/14/2005 | CN2746112Y Vertical lifting integral moving type driller base |
| 12/13/2005 | US6973979 Drilling rig apparatus and downhole tool assembly system and method |
| 12/08/2005 | WO2005116390A1 Telescopic feed beam for rock drill |
| 12/07/2005 | EP1601854A1 Telescopic feed beam for rock drill and method of measuring rock drill travel |
| 12/07/2005 | EP1472431A4 Method and system for building modular structures from which oil and gas wells are drilled |
| 12/07/2005 | CN1705814A An offshore drilling system |
| 11/29/2005 | CA2232303C Telescoping derrick |
| 11/24/2005 | WO2005110020A2 Apparatus and method for modified horizontal directional drilling assembly |
| 11/23/2005 | CN1228534C Subsea well intervention vessel and drilling method |
| 11/22/2005 | CA2344473C Method and device for riser tensioning |
| 11/17/2005 | WO2005108736A2 Modular drill system requiring limited field assembly |
| 11/17/2005 | DE102004019426B3 Horizontal drilling system has drilling mast longitudinally movable/tilt-adjustable on crawler vehicle or base plate with parallel longitudinal supports, rigidly connecting cross-supports, carriage(s) movably mounted on supports |
| 11/09/2005 | EP0851960B1 Telescoping derrick |
| 11/09/2005 | CN2739342Y Hydrauic hoisting tower direction construction drilling tower completed with drilling machine |
| 11/08/2005 | US6962030 Method and apparatus for interconnected, rolling rig and oilfield building(s) |
| 11/03/2005 | US20050241857 Method to transport and operate a small footprint tower to reduce environmental impact |
| 11/03/2005 | US20050241823 Modular drill system requiring limited field assembly and limited equipment support |
| 11/02/2005 | EP1108109B1 Hydraulic drilling rig |
| 10/12/2005 | EP1583884A1 An offshore drilling system |
| 10/12/2005 | CN2732978Y Perpendicular hole locating rock-drilling equipment |
| 10/04/2005 | US6951257 Drilling mast with movable and fixed unscrewing vice |
| 10/04/2005 | US6951082 Drilling rig with torque carrier |
| 09/28/2005 | EP1580398A1 Apparatus and method for subsoil construction |
| 09/08/2005 | US20050194832 Crushing method using large boreholes in underwater rock |
| 09/07/2005 | CN2723667Y Drilling rod support mechanism for drilling rig |
| 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 |
| 09/01/2005 | US20050191134 Telescoping underwater guide |
| 08/30/2005 | US6935440 Service rig with torque carrier |
| 08/23/2005 | US6932553 Multipurpose unit for drilling and well intervention |
| 08/18/2005 | WO2005075789A1 Two section mast with self-aligning connections |
| 08/11/2005 | WO2005073495A1 Device for the production of deep drilling in geological structures |
| 08/11/2005 | WO2005073471A1 Foundation construction for a deep-drilling platform |
| 08/11/2005 | WO2005042911A3 System for drilling oil and gas wells using oversized drill string to achieve increased annular return velocities |
| 08/10/2005 | CN2716493Y Inner core tube automatically replacing deep sea multipoint core drilling rig |
| 08/10/2005 | CN2716492Y Coring inner tube replacing device of deep sea short-hole core drilling rig |
| 08/10/2005 | CN2716487Y Large travel telescopic hydraulic cylinder for headframe |
| 08/09/2005 | US6926097 Jack up workover rig with removable workover floor unit |
| 08/09/2005 | CA2240582C Apparatus and method for raising and lowering a piston in a piston-cylinder arrangement in a derrick |
| 07/28/2005 | US20050161240 Two section mast with self-aligning connections |
| 07/27/2005 | EP1190155B1 Rock drill and mounting frame |
| 07/20/2005 | CN2711385Y Frame type well repairing machine seat for offshore oil-prodn. able to move in all-directions |
| 07/13/2005 | EP1552103A1 Drill head steering |
| 07/13/2005 | CN2709065Y Vacuum absorption type drill machine base |
| 07/13/2005 | CN1210485C Rock drill and mounting frame |
| 07/05/2005 | US6913097 Transportation, storage, and installation system for rig utilities |
| 06/30/2005 | WO2005059297A2 Method of using a multipurpose unit with multipurpose tower and a surface blow out preventer |
| 06/30/2005 | WO2004094762A3 Structural connector for a drilling rig substructure |
| 06/23/2005 | DE202005004969U1 Drilling or boring device for a slope or incline, e.g. for use in civil engineering, has a suspended guide with two parallel rails along which a drilling unit is moved to permit boring at the required position and angle |
| 06/22/2005 | CN2705583Y Section changing ocean well repairing machine derrick |
| 06/22/2005 | CN2705582Y Improved derrick of tracting drill |
| 06/22/2005 | CN2705580Y Rolling friction lifting system |
| 06/16/2005 | US20050126800 Integrated mast and top drive for drilling rig |
| 06/16/2005 | US20050126790 Method for using a multipurpose unit with multipurpose tower and a surface blow out preventer |
| 06/15/2005 | CN2704680Y Telescopic leg automatic gesture regulating stabilizer of deep sea drill |
| 05/26/2005 | US20050109537 Drilling rig |
| 05/24/2005 | US6896072 Multi-functional drilling vehicle |
| 05/19/2005 | WO2004097158A8 Fast moving drilling rig |
| 05/12/2005 | WO2005042914A1 Blow out preventer transfer platform |
| 05/12/2005 | WO2005042911A2 System for drilling oil and gas wells using oversized drill string to achieve increased annular return velocities |
| 05/11/2005 | CN2698968Y Box type base of ocean well repairing machine |
| 05/05/2005 | US20050092497 Blow out preventer transfer platform |
| 04/27/2005 | CN2695602Y Folding drilling mast |
| 04/27/2005 | CN2695601Y Automatic controller of drilling mounting |
| 04/20/2005 | EP1341986A4 Self-erecting rig |
| 04/06/2005 | EP1520082A1 Jacking frame for coiled tubing operations |
| 03/23/2005 | CN2687301Y Integral tower-building type long-spiral drilling machine |
| 03/16/2005 | CN2685532Y Hydraulic lifting and lowering workover rig derrick |
| 03/02/2005 | CN2682188Y Vehicle carried well repairing machine |
| 03/02/2005 | CN2682186Y Rolling friction hoisting device |