| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 05/30/2012 | CN101099024B Methods and apparatus for drilling, completing and configuring u-tube boreholes |
| 05/29/2012 | US8186459 Flexible hose with thrusters and shut-off valve for horizontal well drilling |
| 05/29/2012 | US8186458 Expandable window milling bit and methods of milling a window in casing |
| 05/29/2012 | US8186457 Offshore casing drilling method |
| 05/29/2012 | US8186454 Apparatus and method for electrocrushing rock |
| 05/29/2012 | US8186443 Method and apparatus for containing an oil spill caused by a subsea blowout |
| 05/29/2012 | CA2738548A1 Reamer |
| 05/29/2012 | CA2647032C Steering tool |
| 05/29/2012 | CA2623698C Method and system for mining hydrocarbon-containing materials |
| 05/24/2012 | WO2012068119A2 Open-hole logging instrument and method for making ultr-deep magnetic and resistivity measurements |
| 05/24/2012 | WO2012068054A2 Apparatus and method for adjusting spring preload in a downhole tool |
| 05/24/2012 | WO2012067579A1 Method, system and rock drilling apparatus for installing a pipe in drilled holes in rock drilling |
| 05/24/2012 | WO2012067454A2 Borehole-diameter-expanding drill having the function of maintaining the shape of the reamed area in the ground, and a pile and tension member construction method for building work using the same |
| 05/24/2012 | US20120128435 Ice worthy jack-up drilling unit with conical piled monopod and sockets |
| 05/24/2012 | US20120128434 Ice worthy jack-up drilling unit with conical piled monopod |
| 05/24/2012 | US20120128432 Ice worthy jack-up drilling unit with moon pool for protected drilling in ice |
| 05/24/2012 | US20120128431 Ice worthy jack-up drilling unit with gas agitated ice prevention |
| 05/24/2012 | US20120128430 Ice worthy jack-up drilling unit with pre-loading tension system |
| 05/24/2012 | US20120128429 Ice worthy jack-up drilling unit with gas agitation and leg ice shields |
| 05/24/2012 | US20120128428 Reinforced legs for ice worthy jack-up drilling unit |
| 05/24/2012 | US20120128427 Leg ice shields for ice worthy jack-up drilling unit |
| 05/24/2012 | US20120128426 Ice worthy jack-up drilling unit |
| 05/24/2012 | US20120125691 Modular drilling system |
| 05/24/2012 | US20120125690 Ice worthy jack-up drilling unit with telescoping riser |
| 05/24/2012 | US20120125689 Drill Pipe Tubing and Casing Protector |
| 05/24/2012 | US20120125688 Ice worthy jack-up drilling unit secured to the seafloor |
| 05/24/2012 | US20120125687 Hard Rock Rotary Drill Bit and Method of Drilling Using Crowned Cutter Elements |
| 05/24/2012 | DE102008026456B4 Bohrkopf Wellhead |
| 05/24/2012 | CA2817120A1 Apparatus and method for adjusting spring preload in a downhole tool |
| 05/24/2012 | CA2817087A1 Method, system and rock drilling apparatus for installing a pipe in drilled holes in rock drilling |
| 05/23/2012 | EP2454441A2 Stabilizer subs for use with expandable reamer apparatus, expandable reamer apparatus including stabilizer subs and related methods |
| 05/23/2012 | CN202227985U Vertical drilling tool |
| 05/23/2012 | CN202227984U Liftable driver cab ceiling for tunnel drill machine |
| 05/23/2012 | CN202227983U High-stand engineering drilling machine |
| 05/23/2012 | CN202227982U Multifunctional integral digging, loading, drilling and breaking machine for coal mine |
| 05/23/2012 | CN202227981U Rapid piling device |
| 05/23/2012 | CN202227383U Removing mechanism for traveling frame of earth-moving machine |
| 05/23/2012 | CN1807827B Method and apparatus for high precision horizontal drilling on reinforced concrete |
| 05/23/2012 | CN102472088A 油井完井方法 Well completion method |
| 05/23/2012 | CN102472083A 海上钻井系统 Offshore Drilling System |
| 05/23/2012 | CN102465668A 一种旋转摆动导向钻井工具 A rotary steerable drilling tool swing |
| 05/23/2012 | CN102465667A 一种新型的螺杆钻具结构 A new type of screw drill structure |
| 05/23/2012 | CN102465666A 一种旋挖钻机 One kind of rotary drilling rig |
| 05/23/2012 | CN102031930B Multidirectional hydraulic drill rig with floating rotary device |
| 05/23/2012 | CN101824963B Push-pull clutch of horizontal directional drill |
| 05/23/2012 | CN101812978B Inclined wedge type clamp |
| 05/23/2012 | CN101598002B Door frame type drilling machine |
| 05/22/2012 | US8185366 Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 05/22/2012 | US8185365 Radial force distributions in rock bits |
| 05/22/2012 | US8181704 Riser emergency disconnect control system |
| 05/22/2012 | CA2720881C Pneumatic drifter with replaceable foot pieces |
| 05/22/2012 | CA2505412C Well reamer |
| 05/18/2012 | WO2012064737A2 Tools for use in subterranean boreholes having expandable members and related methods |
| 05/18/2012 | WO2012064199A1 Method and device for establishing a borehole in the seabed |
| 05/18/2012 | CA2854754A1 Method and device for establishing a borehole in the seabed |
| 05/18/2012 | CA2817118A1 Tools for use in subterranean boreholes having expandable members and related methods |
| 05/17/2012 | US20120118646 Borehole cutting assembly for directional cutting |
| 05/17/2012 | US20120118643 Piston Devices and Methods of Use |
| 05/17/2012 | US20120118642 Methods of making earth-boring tools and methods of drilling with earth-boring tools |
| 05/17/2012 | US20120118641 Apparatus and method for adjusting spring preload in a downhole tool |
| 05/17/2012 | US20120118640 Underground drilling apparatus |
| 05/17/2012 | US20120118637 Drilling Advisory Systems And Methods Utilizing Objective Functions |
| 05/16/2012 | EP2453105A1 Well completion method |
| 05/16/2012 | EP2238310B1 Steerable drilling system |
| 05/16/2012 | CN202220554U Inclined disk plunger type rotary guide well-drilling tool |
| 05/16/2012 | CN202220553U Caterpillar type long spiral drilling machine |
| 05/16/2012 | CN202220552U Walking type long spiral drill machine |
| 05/16/2012 | CN202220551U Crawler type hydraulic drilling rig |
| 05/16/2012 | CN202220349U Grab bucket and rotary drilling rig comprising same |
| 05/16/2012 | CN102454364A Torsional impact drilling tool |
| 05/16/2012 | CN102454363A Anti-water-leakage construction method for house decoration |
| 05/15/2012 | US8176999 Steerable drill bit arrangement |
| 05/15/2012 | US8176998 Method and device for core drilling |
| 05/15/2012 | US8176985 Well drilling and production using a surface blowout preventer |
| 05/15/2012 | CA2523348C Method of creating a borehole in an earth formation |
| 05/10/2012 | WO2012061465A2 Combination whipstock and completion deflector |
| 05/10/2012 | WO2012061096A2 Redundant position reference system for multilateral exit construction and method for use of same |
| 05/10/2012 | WO2012060743A1 Arrangement for stabilising a vehicle carrying a rock drilling rig |
| 05/10/2012 | WO2012060711A1 Drilling device for use especially during directional drilling for recovery of geothermal energy |
| 05/10/2012 | WO2012059859A1 Method and apparatus for completion of heavy oil unconsolidated sand reservoirs |
| 05/10/2012 | WO2012059642A1 Rock drilling rig and method for transmission of rock drilling rig |
| 05/10/2012 | WO2012059641A1 Method and apparatus for coupling an earth pipe into the ground, using a solidifying mass. |
| 05/10/2012 | WO2012059578A1 System and method for radially expanding a tubular element comprising an emergency blow-out preventer |
| 05/10/2012 | WO2012059574A1 System and method for radially expanding a tubular element |
| 05/10/2012 | US20120111636 Combination whipstock and completion deflector |
| 05/10/2012 | US20120111634 Earth boring apparatus |
| 05/10/2012 | US20120111631 Formation Dip Geo-Steering Method |
| 05/10/2012 | CA2815860A1 Combination whipstock and completion deflector |
| 05/10/2012 | CA2815407A1 Rock drilling rig and method for transmission of rock drilling rig |
| 05/10/2012 | CA2812352A1 Redundant position reference system for multilateral exit construction and method for use of same |
| 05/10/2012 | CA2795641A1 Method and apparatus for completion of heavy oil unconsolidated sand reservoirs |
| 05/09/2012 | EP2449202A1 Vibrating downhole tool |
| 05/09/2012 | CN202215149U Piling vehicle |
| 05/09/2012 | CN102449240A Methods and apparatus for the installation of columns / piles |
| 05/09/2012 | CN102444382A Well drilling technology for abutting along drilling |
| 05/09/2012 | CN101806149B Inner convex fixing bolt construction method, convex drill and deformed gasket |
| 05/09/2012 | CN101718167B Check valve device installed on well out of control |
| 05/09/2012 | CN101581197B Design method for optimization of matching between pile hammer and riser pipe |
| 05/08/2012 | US8172009 Expandable tool with at least one blade that locks in place through a wedging effect |
| 05/08/2012 | US8172007 System and method of monitoring flow in a wellbore |