| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 08/15/2013 | US20130206411 Shale gas operation method |
| 08/14/2013 | EP2626506A2 Device for moving a working medium in the ground |
| 08/14/2013 | EP2625383A2 Formation sensing and evaluation drill |
| 08/14/2013 | EP2625379A2 Remotely controlled apparatus for downhole applications and related methods |
| 08/14/2013 | EP2625378A2 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 08/14/2013 | EP2625366A1 Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools |
| 08/14/2013 | EP2625242A2 Graphene-based material for shale stabilization and method of use |
| 08/14/2013 | CN203130678U Hydraulic electric combined control system of horizontal directional drilling machine |
| 08/14/2013 | CN203129955U Broaching jumbolter |
| 08/14/2013 | CN203129954U Hole opening device for improving well hole quality |
| 08/14/2013 | CN203129953U Perpendicular well drilling device |
| 08/14/2013 | CN203129952U Non-excavation horizontal directional drilling machine |
| 08/14/2013 | CN203129951U Core exploration drilling machine |
| 08/14/2013 | CN203129950U Automatic circling drilling machine |
| 08/14/2013 | CN203129949U Simple spiral drilling machine |
| 08/14/2013 | CN203129948U Multifunctional cutting drilling machine |
| 08/14/2013 | CN103249905A Method and system for radially expanding a tubular element |
| 08/14/2013 | CN103249904A Method for controlling drilling unit of rock drilling rig, and rock drilling rig |
| 08/14/2013 | CN103244114A Device for monitoring formation water out during gas drilling in real time based on microwave technology |
| 08/14/2013 | CN103244055A Caterpillar-type drilling machine |
| 08/14/2013 | CN103244054A Movable vertical-spindle-type drill carriage |
| 08/14/2013 | CN103244053A Rectangular drilling machine |
| 08/14/2013 | CN103244050A Control method for rotary drilling rig to prevent high torque car holding and device thereof |
| 08/14/2013 | CN103243777A Karst region mine water-exploring water-taking method and device |
| 08/14/2013 | CN101918672B Drilling system |
| 08/14/2013 | CN101772614B Rotary steerable drilling system |
| 08/13/2013 | US8505651 Anchor system and method for anchoring a tool with a positional bias |
| 08/13/2013 | US8505650 Apparatus and method for making boreholes in the ground, the cross sections of which boreholes partially intersect |
| 08/13/2013 | US8505622 Conical deflection wedge system for oil and gas wells and the method of use thereof |
| 08/13/2013 | US8505621 Well assembly with recesses facilitating branch wellbore creation |
| 08/13/2013 | US8505620 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 08/13/2013 | CA2812352C Redundant position reference system for multilateral exit construction and method for use of same |
| 08/13/2013 | CA2744419C Methods and systems for modeling, designing, and conducting drilling operations that consider vibrations |
| 08/13/2013 | CA2456303C Continuous method of realization of underground tunnels including peripheral perforations |
| 08/08/2013 | WO2013065013A3 Drilling arrangement |
| 08/08/2013 | US20130199853 Braking Mechanism for a Downhole Tool |
| 08/08/2013 | US20130199852 Steering head |
| 08/08/2013 | US20130199851 Method for producing a horizontally drilled bore in the ground and horizontal drilling device |
| 08/08/2013 | US20130199850 Drill bits and methods for forming curved portions of a borehole |
| 08/08/2013 | US20130199849 Impulse-type underground supercharged jet drilling method and device |
| 08/08/2013 | US20130199848 Method and apparatus for creating a pressure pulse in drilling fluid to vibrate a drill string |
| 08/08/2013 | US20130199844 Rotary Steerable Tool Actuator Tool Face Control |
| 08/08/2013 | US20130199340 Liquid injection process for in-situ leaching and extracting ion-adsorption type rare earth elements |
| 08/08/2013 | DE102012100989A1 Vorrichtung zum Bewegen eines Arbeitsmittels im Erdreich Apparatus for moving a working fluid in the ground |
| 08/08/2013 | DE102012002417A1 Schmiermittelversorgung einer Bohrung zum Verlegen einer Rohrleitung A lubricant supply hole for laying a pipeline |
| 08/08/2013 | DE102012002063A1 Method for producing inductive charger for vehicle, involves generating pit which is cut into circular surface by crown drill bit for creating circular pit, and using trenchless subsurface for generating channel of circular pit |
| 08/07/2013 | EP2623706A2 Excavation system using a water jet, and excavation method using the same |
| 08/07/2013 | EP2622166A2 Drilling system for enhanced coring and method |
| 08/07/2013 | EP2622165A2 Combination whipstock and completion deflector |
| 08/07/2013 | CN203114174U Novel fixed propulsor |
| 08/07/2013 | CN203114173U Inverted plumb line hole constructing device |
| 08/07/2013 | CN203114172U Multi-role whole crawler-type all-hydraulic directional drilling machine in underground coal mine |
| 08/07/2013 | CN203114171U Horizontal directional drilling machine provided with bracket |
| 08/07/2013 | CN203114170U In-hole hammer drilling embedding rock-socketed prestressed pipe pile device |
| 08/07/2013 | CN203114169U Multifunctional split type crawler belt drilling rig for coal mine |
| 08/07/2013 | CN203114168U Double-caterpillar band independent walking drilling machine hydraulic system |
| 08/07/2013 | CN203114167U Light drilling machine capable of implementing wire-line coring drilling |
| 08/07/2013 | CN203114160U Underground coal mine directional drilling machine big through hole power head with braking function |
| 08/07/2013 | CN103233931A High-discharge open hydraulic system of trenchless horizontal directional drilling machine |
| 08/07/2013 | CN103233681A Vibration assisted well drilling simulation device |
| 08/07/2013 | CN103233483A Deep hole drilling technology for blocking earth ground fracturing and preventing local regional earthquake |
| 08/07/2013 | CN102182399B Construction method and equipment for reverse circulation drill to drill hole, hammer to form hole, expand hole and remove slag |
| 08/07/2013 | CN101812967B Deep hole drilling machine for mining |
| 08/07/2013 | CN101769126B Hydraulic middle-drive retractable multi-spindle drilling and stirring device |
| 08/07/2013 | CN101413378B Motorized system for drilling a drainhole |
| 08/07/2013 | CA2803718A1 Braking mechanism for a downhole tool |
| 08/06/2013 | US8500370 Excavation and compaction equipment for the construction of screw piles |
| 08/06/2013 | US8499854 Rotating control device, cool fluid circulation system and methods of operation |
| 08/06/2013 | US8499838 Subsea locking connector |
| 08/06/2013 | CA2604717C Method for the trenchless laying of pipes |
| 08/01/2013 | WO2013113002A2 A method to control the environment in a laser path |
| 08/01/2013 | WO2013112296A1 Providing coupler portions along a structure |
| 08/01/2013 | WO2013110328A1 Thermal spallation atomic hydrogen arc drilling |
| 08/01/2013 | US20130192898 Hydraulic brake for drilling-bit |
| 08/01/2013 | US20130192897 Downhole Tool Activation |
| 08/01/2013 | US20130192894 Methods for enhancing the efficiency of creating a borehole using high power laser systems |
| 08/01/2013 | US20130192893 High power laser perforating tools and systems energy over long distances |
| 08/01/2013 | US20130192845 Liner drilling using temporarily sealed liner |
| 08/01/2013 | CA2850482A1 Enhanced 1-d method for prediction of mud weight window for subsalt well sections |
| 07/31/2013 | EP2620584A1 Hydraulic brake for a drilling bit |
| 07/31/2013 | CN203097800U Low-pressure light rotary control head without external cooling lubrication pump station |
| 07/31/2013 | CN203097752U Water separating guide pipe shoe V-shaped tooth device |
| 07/31/2013 | CN203097718U Powerful reaming drill |
| 07/31/2013 | CN203097717U Plate and barrel combined-type reamer |
| 07/31/2013 | CN203097716U Combined drill column device for drilling of directional well |
| 07/31/2013 | CN203097715U Double power wheel type drifting machine |
| 07/31/2013 | CN203097714U Full-hydraulic underground tunnel drilling machine |
| 07/31/2013 | CN203097713U Rodless cylinder drawn by steel wire ropes |
| 07/31/2013 | CN203097712U Concrete bored pile rectangular hole forming device |
| 07/31/2013 | CN103225479A 液压式工程钻机 Hydraulic Drilling Rig |
| 07/31/2013 | CN102312654B Singe-action three-pipe drilling tool ball cage type indexable directional deflecting device |
| 07/31/2013 | CN102086754B Deepwater drilling method |
| 07/31/2013 | CN101649723B Novel trailing drilling platform |
| 07/31/2013 | CN101646836B Method and assembly for abrasive jet drilling |
| 07/30/2013 | US8496063 Separation of drill cuttings from drilling fluid on a seabed |
| 07/25/2013 | WO2013109615A1 Releasable mooring systems and methods for drilling vessels |
| 07/25/2013 | WO2013106938A1 Method and apparatus for creating a pressure pulse in drilling fluid to vibrate a drill string |
| 07/25/2013 | WO2013106890A1 Dual circulation drilling system |
| 07/25/2013 | WO2013040613A3 Shield driving device |
| 07/25/2013 | US20130186687 Monitor and control of directional drilling operations and simulations |