Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 7 - Special methods or apparatus for drilling
Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
09/2014
09/23/2014US8839858 Drilling wells in compartmentalized reservoirs
09/18/2014WO2014142774A1 Technology and devices for the underwater production of hydrocarbons
09/18/2014WO2014142011A1 Digging tool
09/18/2014WO2014140661A1 Downhole directional drilling assembly
09/18/2014US20140262562 Rig walking system with cantilever-mounted lifting jack assemblies
09/18/2014US20140262529 Encapsulated gas for drilling and completion fluids
09/18/2014US20140262528 Sidetracking system and related methods
09/18/2014US20140262525 Underreamer for increasing a wellbore diameter
09/18/2014US20140262523 Underreamer for increasing a wellbore diameter
09/18/2014US20140262517 Drilling rig for drilling from underground tunnels
09/18/2014US20140262507 Rotary steerable system for vertical drilling
09/18/2014US20140262504 Multipurpose cantilever skidding frame
09/18/2014US20140262340 Methods and systems for drilling from underground access tunnels to develop subterranean hydrocarbon reservoirs
09/18/2014US20140262219 Dual underground tunnel system for hydrocarbon exploitation
09/18/2014US20140260930 Ram accelerator system
09/17/2014EP2776766A2 Orienting and supporting a casing of a coaxial geothermal borehole
09/16/2014US8836534 Method and system for integrating sensors on an autonomous mining drilling rig
09/16/2014US8833490 Self-circulating drill bit
09/16/2014US8833475 Carbon dioxide-based geothermal energy generation systems and methods related thereto
09/16/2014US8833465 Subsea differential-area accumulator
09/16/2014US8833463 Above mudline whipstock for marine platform drilling operations
09/16/2014US8833462 Method and system for installing subsea well trees
09/16/2014US8833459 System and method for channeling fluids underwater to the surface
09/16/2014US8833458 Facility for using fluid in a stretch of water, and associated assembly method
09/16/2014US8833444 System, apparatus and method for abrasive jet fluid cutting
09/16/2014US8833442 Wedge deflecting device for sidetracking
09/16/2014CA2626925C Device and method for feeding particles into a stream
09/16/2014CA2621350C Pipes, systems, and methods for transporting fluids
09/15/2014CA2846550A1 Apparatus for and method of folding a mast or derrick
09/12/2014WO2014137581A1 Electrical penetrator assembly
09/12/2014WO2014137330A1 Roll reduction system for rotary steerable system
09/12/2014WO2014137315A1 Window milling systems
09/12/2014CA2844572A1 Rotary steerable system for vertical drilling
09/11/2014US20140251697 Vehicular Auger Implement
09/11/2014US20140251695 Adjustable Bend Assembly for a Downhole Motor
09/11/2014US20140251694 Directional Boring Tooling Reed Type Checkflow Valve
09/11/2014US20140251692 Rotating drilling stabilizer
09/11/2014US20140251687 Digital underreamer
09/11/2014US20140251686 Mousehole apparatus
09/11/2014DE102013003761A1 Bohrvorrichtung zum Herstellen von Hausanschlüssen Drilling device for making house connections
09/10/2014EP2775093A1 System and apparatus for modeling the behavior of a drilling assembly
09/10/2014EP2775089A1 Construction device and method for determining the position of a drill drive
09/10/2014EP2773837A2 Method and system for an automatic milling operation
09/10/2014EP2773836A2 Eccentric sleeve for directional drilling systems
09/10/2014EP2773835A1 Mining vehicle
09/09/2014US8827007 Steering head
09/09/2014US8827006 Apparatus and method for measuring while drilling
09/09/2014US8827005 Method for drilling wells in close relationship using magnetic ranging while drilling
09/09/2014US8826990 Apparatuses and methods for closing and reopening a pipe
09/09/2014US8826973 Method and system for advancement of a borehole using a high power laser
09/09/2014CA2684068C Installation of underwater ground anchorages
09/04/2014WO2014133984A1 Remote laser heating systems and methods
09/04/2014WO2014133498A1 A mill diverter having a swellable material for preventing fluid flow past the material
09/04/2014WO2014133440A2 Drilling arrangement and method for holding a drill string
09/04/2014WO2014133439A2 Drilling arrangement and method pertaining to the drilling arrangement
09/04/2014WO2014131085A1 Deployment apparatus
09/04/2014WO2014131080A1 A method of generating a drill hole sequence plan and drill hole sequence planning equipment
09/04/2014WO2014089214A3 Carbon nanoparticle additives for wellbore fluid conductivity
09/04/2014WO2014006466A3 Orientable downhole drilling assembly and method of using same
09/04/2014US20140246244 Enhanced 1-D Method for Prediction of Mud Weight Window for Subsalt Well Section
09/04/2014US20140246242 Components of drilling assemblies, drilling assemblies, and methods of stabilizing drilling assemblies in wellbores in subterranean formations
09/04/2014US20140246241 String Supported Whipstock for Multiple Laterals in a Single Trip and Related Method
09/04/2014US20140246234 Drilling apparatus and method
09/03/2014EP2772607A2 Drilling carriage with a connection adapter, system and use of a connection adapter on a carrier device
09/03/2014EP2772606A1 Drive device and method for operating a drive device
09/03/2014EP2772332A1 Remote laser heating systems and methods
09/03/2014EP2771532A2 Lubricant supply of a bore for laying a pipeline
09/02/2014US8821072 Ground drilling method and apparatus
09/02/2014US8820440 Drill bit steering assembly
09/02/2014US8820439 Tools for use in subterranean boreholes having expandable members and related methods
09/02/2014US8820437 Cementing whipstock apparatus and methods
09/02/2014US8820435 Auger for digging holes
09/02/2014US8820434 Apparatus for advancing a wellbore using high power laser energy
09/02/2014US8820007 Device for forming post sleeves, and method of use
09/02/2014CA2796474C Rock drilling rig and method for downhill drive
08/2014
08/28/2014WO2014127489A1 Integrated downhole system with plural telemetry subsystems
08/28/2014WO2014127453A1 Directional measurements using neutron sources
08/28/2014WO2014036573A3 Rock drill guide
08/28/2014WO2013126827A3 Latch assembly
08/28/2014US20140238748 Slotted liner drilling
08/28/2014US20140238747 Auger stand for a utility truck and method of using same
08/28/2014US20140238712 Drive device and method for operating a drive device
08/28/2014US20140238668 Testing while fracturing while drilling
08/28/2014DE102013003309A1 Bohrlafette mit einem Verbindungsadapter, System und Verwendung eines Verbindungsadapters an einem Trägergerät Drill mount with a link adapter, system and using a connection adapter to a support device
08/27/2014EP2770157A1 Drilling tool and method for drilling in soil
08/27/2014EP2770156A1 Drilling tool and method for drilling in soil
08/27/2014EP2769045A1 Method and apparatus for drilling multiple subsea wells from an offshore platform at a single site
08/26/2014US8813877 Method and apparatus for reaming well bore surfaces nearer the center of drift
08/26/2014US8813871 Expandable apparatus and related methods
08/26/2014US8813870 Arrangement and a method for monitoring an air flow in a drill rig
08/26/2014US8813869 Analysis refracted acoustic waves measured in a borehole
08/26/2014US8813856 Downhole tubing shift tool and method
08/26/2014US8813840 Method and system for accessing subterranean deposits from the surface and tools therefor
08/21/2014WO2014124530A1 Fluid pressure pulse generating apparatus with pressure compensation device and pulser assembly housing
08/21/2014US20140231398 High power laser tunneling mining and construction equipment and methods of use
08/21/2014US20140231147 Apparatus and system to drill a bore using a laser
08/21/2014US20140231146 Method of enhancing drilling fluid performance
08/21/2014US20140231136 Apparatus and method for rotary steering
08/21/2014US20140231089 Floating offshore facility and a method for drilling a well
08/20/2014EP2767672A2 Device for creating a borehole in the ground
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ... 221