| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 05/18/2006 | WO2006019977A3 Impact excavation system and method |
| 05/18/2006 | WO2006014417A3 Coiled tubing with dual member drill string |
| 05/18/2006 | US20060102388 Drilling tool |
| 05/18/2006 | US20060102343 Drilling, perforating and formation analysis |
| 05/18/2006 | US20060102338 Anchoring device for a wellbore tool |
| 05/18/2006 | CA2587483A1 Method and apparatus for jet-fluid abrasive cutting |
| 05/17/2006 | EP1657400A1 Construction apparatus |
| 05/17/2006 | EP1614852A4 Hole opener |
| 05/17/2006 | EP1611311A4 System and method for treating drilling mud in oil and gas well drilling applications |
| 05/17/2006 | EP1327098B1 Device for expanding a pipeline |
| 05/17/2006 | EP1274917B1 Rock drilling rig |
| 05/17/2006 | EP1264067B1 Foundation for suction in installation of conductor casing |
| 05/17/2006 | CN1774558A Underground high pressure continuous flow jet drilling tool and rock drilling method thereof |
| 05/17/2006 | CN1773074A Construction apparatus |
| 05/17/2006 | CN1773073A Construction apparatus |
| 05/17/2006 | CN1256499C Gas-underbalance well drilling apparatus |
| 05/16/2006 | US7044241 Method for drilling with casing |
| 05/16/2006 | US7044218 Apparatus for radially expanding tubular members |
| 05/16/2006 | CA2274650C Apparatus and method for improved tubular grip assurance |
| 05/16/2006 | CA2215505C An arrangement in a feed beam of a rock drill |
| 05/16/2006 | CA2207923C Steerable drilling with downhole motor |
| 05/16/2006 | CA2200938C Whipstock accelerator ramp |
| 05/16/2006 | CA2184943C Lateral seal and control system |
| 05/11/2006 | WO2006050252A2 Improved underreamer and method of use |
| 05/11/2006 | WO2005113928A3 System for directional boring including a drilling head with overrunning clutch and method of boring |
| 05/11/2006 | WO2005033907A3 Activity data capture system for a well service vehicle |
| 05/11/2006 | US20060096788 Reamer assembly |
| 05/11/2006 | US20060096782 Self relieving seal |
| 05/11/2006 | US20060096755 Method and system for accessing subterranean deposits from the surface |
| 05/11/2006 | DE19860259B4 Vortriebsrohrleitung Jacking pipe |
| 05/11/2006 | DE102004054153A1 Drilling equipment for ground boring has housing connected to boring tools or drill head with freewheel whereby drill head is connected to drive device with drill tools and drill head is arranged outside the drilling equipment |
| 05/11/2006 | CA2586045A1 Improved underreamer and method of use |
| 05/10/2006 | EP1654436A2 Method for heat drilling holes in ice and device for carrying out said method |
| 05/10/2006 | EP1616071A4 Drill bit |
| 05/10/2006 | EP1537289A4 New and improved method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores |
| 05/10/2006 | EP1295010B1 Method of opening joints between drilling components, and rock drill |
| 05/10/2006 | CN1769645A Guide positioning method and positioning instrument for horizontal directional drilling |
| 05/09/2006 | US7040420 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 05/09/2006 | US7040416 T-post hole-forming device and use for installing a T-post |
| 05/09/2006 | US7040415 Downhole telemetry system and method |
| 05/09/2006 | US7040407 Collet load shoulder |
| 05/09/2006 | US7040398 In situ thermal processing of a relatively permeable formation in a reducing environment |
| 05/09/2006 | CA2170184C Steerable rotary drilling systems |
| 05/04/2006 | WO2006047386A2 Underground piercing tool |
| 05/04/2006 | WO2006046906A1 Drilling unit |
| 05/04/2006 | WO2006046902A1 A drill rig and a method for controlling a fan therei |
| 05/04/2006 | WO2006045134A1 Device for guiding and tensioning supply lines |
| 05/04/2006 | WO2005120149A3 Adjustable bent housing |
| 05/04/2006 | WO2005107395A3 Flexible drillstring apparatus and method for manufacture |
| 05/04/2006 | US20060090935 Steerable drilling apparatus having a differential displacement side-force exerting mechanism |
| 05/04/2006 | CA2585264A1 Underground piercing tool |
| 05/04/2006 | CA2582258A1 Drilling unit |
| 05/04/2006 | CA2575711A1 A drill rig and a method for controlling a fan therein |
| 05/03/2006 | EP1210497B8 Bit connector |
| 05/02/2006 | US7037040 Method for the placement of subterranean electrodes |
| 05/02/2006 | US7036610 Apparatus and method for completing oil and gas wells |
| 05/02/2006 | US7036606 Quick-detach vehicle-mounted auger driver |
| 05/02/2006 | US7036588 Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| 05/02/2006 | US7036584 Method and system for accessing a subterranean zone from a limited surface area |
| 05/02/2006 | US7036582 Expansion cone for radially expanding tubular members |
| 05/02/2006 | CA2214861C Hydraulic drive for rotation of a rock drill |
| 05/02/2006 | CA2198689C Method and apparatus for establishing branch wells at a node of a parent well |
| 05/02/2006 | CA2198236C Arrangement for mounting swing cylinders in boom for rock drilling unit |
| 04/27/2006 | WO2006045098A1 Downhole fluid loss control apparatus |
| 04/27/2006 | WO2006044737A2 Method and control system for directional drilling |
| 04/27/2006 | US20060086536 Electrical transmission apparatus through rotating tubular members |
| 04/26/2006 | EP1650399A1 Device for screwing together rod-shaped elements |
| 04/26/2006 | EP1649133A1 Sonic heads and assemblies and uses thereof |
| 04/26/2006 | EP1649132A1 Tool for excavating an object |
| 04/26/2006 | EP1649131A1 System and method for making a hole in an object |
| 04/26/2006 | EP1649130A1 Tool for excavating an object |
| 04/26/2006 | EP1649129A1 Device for transporting particles of a magnetic material and tool comprising such a device |
| 04/26/2006 | EP1552103A4 Drill head steering |
| 04/26/2006 | EP1540219A4 Method and apparatus for replacement of underground pipe |
| 04/26/2006 | CN2775345Y Air supercharger for non-balance well drilling |
| 04/26/2006 | CN2775283Y Parallel oriented drill rig drill rod box with crane latch device |
| 04/26/2006 | CN2775279Y Water protective device for water drill |
| 04/26/2006 | CN1763350A Boring device for borehole wall |
| 04/26/2006 | CN1253646C Method for sampling an earth formation through a cased borehole |
| 04/25/2006 | US7034768 Antenna system |
| 04/25/2006 | US7032978 Crushing method using large boreholes in underwater rock |
| 04/25/2006 | US7032692 Drilling device for earth drill |
| 04/25/2006 | US7032691 Underbalanced well drilling and production |
| 04/25/2006 | US7032686 Drilling and bolting head for a bolting machine |
| 04/25/2006 | US7032684 Method of opening joints between drilling components, and rock drill |
| 04/25/2006 | US7032658 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 04/25/2006 | CA2351128C Apparatus and method for orienting a downhole tool |
| 04/25/2006 | CA2334741C Casing drilling shoe |
| 04/25/2006 | CA2166907C Whipstock assembly for a sleeved casing |
| 04/20/2006 | WO2006041343A1 Rock drilling rig, service platform connected to a rock drilling rig and a roof for a service platform |
| 04/20/2006 | US20060081456 Remotely controlled decoking tool used in coke cutting operations |
| 04/20/2006 | US20060081401 Downhole fluid loss control apparatus |
| 04/20/2006 | US20060081399 Method and control system for directional drilling |
| 04/20/2006 | CA2569323A1 Rock drilling rig, service platform connected to a rock drilling rig and a roof for a service platform |
| 04/19/2006 | EP1647640A1 Sewer pipe, particularly driving pipe, and method of manufacturing the same |
| 04/19/2006 | EP1407112B1 Method for producing earth boreholes |
| 04/19/2006 | EP0857249B1 Closed loop drilling system |
| 04/19/2006 | CN2773301Y Pumping and well-repairing operation vehicle in oil-field with separated rig |
| 04/19/2006 | CN2773297Y Horizontal-section drilling path adjuster |
| 04/19/2006 | CN2773176Y Power-increasing squeezing expander |