| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 05/05/2011 | US20110100716 Steerable system |
| 05/05/2011 | US20110100715 Center discharge gas turbodrill |
| 05/05/2011 | US20110100714 Backup cutting elements on non-concentric earth-boring tools and related methods |
| 05/05/2011 | US20110100713 Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit |
| 05/05/2011 | US20110100710 Systems and methods for subsea drilling |
| 05/05/2011 | US20110100640 Drive mechanism |
| 05/05/2011 | US20110100635 System for drilling under balanced wells |
| 05/05/2011 | US20110100620 Active integrated well completion method and system |
| 05/04/2011 | EP2315904A1 Method and system for advancement of a borehole using a high power laser |
| 05/04/2011 | EP2315881A1 Drilling platform |
| 05/04/2011 | EP1474587B1 Plasma channel drilling process |
| 05/04/2011 | CN201818254U Guide device for trenchless pipe-paving drilling machine |
| 05/04/2011 | CN201818241U Torsional impact drilling tool |
| 05/04/2011 | CN201818240U Circulation tool for casing running |
| 05/04/2011 | CN201818239U Rotary drilling rig driving cab with integral tempered glass window |
| 05/04/2011 | CN201818238U Rock burst preventive drilling machine |
| 05/04/2011 | CN102046912A Offshore drilling and production systems and methods |
| 05/04/2011 | CN102041967A Recoverable track type deflection guider |
| 05/04/2011 | CN102041966A In-seam or across-seam double-power quick drilling and chambering integrated device and method |
| 05/04/2011 | CN102041965A Coal mine underground over-broken abnormal zone drilling method |
| 05/04/2011 | CN101408093B Diameter-variable stabilizer for gas drilling |
| 05/04/2011 | CN101280688B Reagional eliminating method for drilling along the top at prominent coal heading face |
| 05/03/2011 | US7934563 Inverted drainholes and the method for producing from inverted drainholes |
| 05/03/2011 | CA2512700C Apparatus and methods for forming a lateral wellbore |
| 05/03/2011 | CA2455581C Downhole calibration system for directional sensors |
| 04/28/2011 | WO2011050064A1 Hybrid buoyed and stayed towers and risers for deepwater |
| 04/28/2011 | WO2011049747A2 Tether tracking system and method for mobile machine |
| 04/28/2011 | WO2011048368A2 Wellbore completion |
| 04/28/2011 | US20110094800 Method for Control of a Drilling Operation |
| 04/28/2011 | US20110094747 Method of remediating bit balling using oxidizing agents |
| 04/28/2011 | DE10054659B4 Einrichtung zum richtungsgesteuerten Vortrieb von Rohren Means for steerable propulsion of tubes |
| 04/28/2011 | CA2778190A1 Wellbore completion |
| 04/27/2011 | CN201810333U Drilling, loading and anchoring all-in-one machine for outburst mine and coal roadway |
| 04/27/2011 | CN201810296U Array type cluster well group workover operation device |
| 04/27/2011 | CN201810206U High pressure water jet drilling and expanding integrated device |
| 04/27/2011 | CN201810205U Walking horizontal directional drilling machine |
| 04/27/2011 | CN201810204U Preformed six-stage multilateral well system tool |
| 04/27/2011 | CN201810203U Multifunctional simple arm support folding hydraulic drilling machine |
| 04/27/2011 | CN201810202U Multi-functional excavator type arm support folding hydraulic drilling machine |
| 04/27/2011 | CN102037209A A method and system for facilitating assembly of a drilling rig |
| 04/27/2011 | CN102032225A Hydraulic system of continuous oil pipe radial drilling equipment |
| 04/27/2011 | CN102031957A Rotating guiding well drilling signal receiving device based on underground mud turbine motor |
| 04/27/2011 | CN102031950A Hole-forming process method for comb gas extraction borehole in coal seam roof |
| 04/27/2011 | CN102031931A Self-rotating jet drilling device |
| 04/27/2011 | CN102031930A Multidirectional hydraulic drill rig with floating rotary device |
| 04/27/2011 | CN102031929A PLC (Programmable Logic Controller) controlled variable-frequency piling machine |
| 04/26/2011 | US7931098 Steerable bit system assembly and methods |
| 04/26/2011 | US7931096 Adaptive user interface for rock drilling rig |
| 04/26/2011 | US7931090 System and method for controlling subsea wells |
| 04/26/2011 | US7931076 Small footprint drilling rig |
| 04/26/2011 | CA2609027C Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells |
| 04/21/2011 | WO2011046859A2 Casing rotary steerable system for drilling |
| 04/21/2011 | WO2011046444A1 Rock drilling machine |
| 04/21/2011 | WO2010148226A3 Application of degradable fibers in invert emulsion fluids for fluid loss control |
| 04/21/2011 | WO2010148222A3 Application of degradable fibers in invert emulsion fluids for kill pills |
| 04/21/2011 | US20110088951 Dual bha drilling system |
| 04/21/2011 | US20110088950 Cutting elements configured to generate shear lips during use in cutting, earth boring tools including such cutting elements, and methods of forming and using such cutting elements and earth boring tools |
| 04/21/2011 | US20110088890 Multiple magnetic sensor ranging method and system |
| 04/21/2011 | DE102005055032B4 Rammbohrgerät mit pneumatischer Umsteuerung Ram boring machine with pneumatic reversing |
| 04/20/2011 | EP2312114A1 Coupling device between an assembly of tubular strings and drill strings and the means for rotating of said strings |
| 04/20/2011 | EP2310618A1 Separation of drill cuttings from drilling fluid on a seabed |
| 04/20/2011 | EP2310612A2 Modular hybrid drill bit |
| 04/20/2011 | EP2310611A1 Method for determining dead zone of valve |
| 04/20/2011 | EP2310610A1 Rotating device |
| 04/20/2011 | EP2310579A1 Radial collector well and method for constructing or improving radial collector wells |
| 04/20/2011 | CN201802409U Multi-arm rock drill |
| 04/20/2011 | CN201802381U Automatically and continuously controlled drilling device |
| 04/20/2011 | CN201802334U Hydrodynamic sleeve windowing tool device |
| 04/20/2011 | CN201802310U Excavation drilling machine |
| 04/20/2011 | CN102027185A Method for determining dead zone of valve |
| 04/20/2011 | CN102022083A Rotary guide well drilling tool |
| 04/20/2011 | CN102022082A A ground instruction transmission method for controlling rotary steering drilling tool and an apparatus for the same |
| 04/20/2011 | CN102022081A Method and device for drilling under condition of complicated stratum |
| 04/20/2011 | CN102022080A Dehydration device for air well drilling |
| 04/20/2011 | CN102022079A Outburst-prevention drilling machine on mining surface of gassy outburst coal mine and frequency conversion variable liquid-supplying self-walking pump station thereof |
| 04/20/2011 | CN102022078A Particle percussive drilling method and device |
| 04/20/2011 | CN101198763B Drill |
| 04/19/2011 | US7926592 Steerable drilling system |
| 04/19/2011 | US7926591 Aqueous-based emulsified consolidating agents suitable for use in drill-in applications |
| 04/19/2011 | US7926589 Boring tool control using remote locator |
| 04/19/2011 | US7926587 Explosive water jet with precursor bubble |
| 04/19/2011 | US7926579 Apparatus for subsea intervention |
| 04/19/2011 | CA2514437C Process and system for drilling and lining a bore hole |
| 04/19/2011 | CA2512833C Wellstring assembly |
| 04/14/2011 | WO2011044012A1 Single-assembly system and method for one-trip drilling, casing, cementing and perforating |
| 04/14/2011 | WO2011043785A1 Drilling machine power pack which includes a clutch |
| 04/14/2011 | WO2011043781A1 Drilling machine power pack which includes a clutch |
| 04/14/2011 | WO2011041887A1 Jet-drilling and completion process |
| 04/14/2011 | WO2010115777A3 Method and steering assembly for drilling a borehole in an earth formation |
| 04/14/2011 | US20110083903 Drilling machine power pack which includes a clutch |
| 04/14/2011 | US20110083902 Lost Circulation Control Fluids for Naturally Fractured Carbonate Formations |
| 04/14/2011 | US20110083900 Downhole drilling system |
| 04/14/2011 | US20110083841 Drill pipe |
| 04/13/2011 | EP2307657A1 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 04/13/2011 | EP2307656A2 Reaming tool |
| 04/13/2011 | EP2307655A2 Reaming tool |
| 04/13/2011 | CN201794610U Drilling, loading, anchoring, supporting and transporting integrated machine in high outburst mine coal drift |
| 04/13/2011 | CN201794609U Drilling, loading and supporting all-in-one machine for coal roadway of high outburst coal mine |
| 04/13/2011 | CN201794530U Clamping holder used for trenchless pipe laying big-tonnage drilling machine |
| 04/13/2011 | CN201794516U Light-weight removable 90-ton workover rig in sea |