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)
11/2014
11/18/2014US8890361 Electric horizontal directional drilling machine system
11/18/2014US8887836 Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits
11/18/2014US8887834 Drilling tool steering device
11/18/2014US8887833 Reamer assembly
11/18/2014US8887830 Telescoping leader
11/18/2014US8887814 Offshore universal riser system
11/18/2014US8887812 Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer
11/13/2014US20140332278 Extended reach drilling
11/13/2014US20140332273 Cutting element, tool and method of cutting within a borehole
11/13/2014US20140332270 Method and apparatus for operating a downhole tool
11/13/2014US20140332269 Delivery method and system
11/13/2014US20140331570 Air bearing transport system
11/11/2014US8882393 Tool for longitudinally subdividing sewer pipes
11/11/2014US8882204 Apparatus and method for mining coal
11/11/2014US8881846 Directional drilling control using a bendable driveshaft
11/11/2014US8881845 Expandable window milling bit and methods of milling a window in casing
11/11/2014US8881844 Directional drilling control using periodic perturbation of the drill bit
11/11/2014US8881843 Managed pressure and/or temperature drilling system and method
11/11/2014US8881829 Backup wellhead blowout prevention system and method
11/11/2014US8881827 Wellhead having an integrated safety valve and method of making same
11/11/2014US8881814 Liner cementation process and system
11/06/2014US20140326510 Wireline drilling system
11/06/2014US20140326503 System and method of executing an underwater well drilling program in the bed of a body of water, and auxiliary floating unit
11/06/2014US20140326502 Merlin drilling riser assembly
11/06/2014US20140326454 Methods and apparatus for wellbore construction and completion
11/04/2014US8880261 Electrically driven vehicle
11/04/2014US8875810 Hole enlargement drilling device and methods for using same
11/04/2014US8875806 Formation dip geo-steering method
11/04/2014US8875805 Mobile drilling system and a methodology for installation of the system
11/04/2014US8875795 Subsea sensors display system and method
10/2014
10/30/2014US20140318863 Floating offshore facility and a method for drilling a well
10/30/2014US20140318760 System and Method for the Access of Subterranean Deposits
10/30/2014US20140318233 Transmitter Housing and Method for Measuring a Fluid Pressure
10/28/2014US8870497 Ice worthy jack-up drilling unit with conical piled monopod
10/28/2014US8869923 Rock drilling rig and method for downhill drive
10/28/2014US8869916 Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
10/28/2014US8869915 Systems and methods for sonic subsurface material removal
10/28/2014US8869914 High power laser workover and completion tools and systems
10/28/2014US8869900 Method and apparatus for connecting drilling riser strings and compositions thereof
10/28/2014US8869891 Systems and methods for producing oil and/or gas
10/23/2014US20140311802 Circumferential and longitudinal cutter coverage in continuation of a first bit diameter to a second expandable reamer diameter.
10/21/2014US8863858 System and method for managing heave pressure from a floating rig
10/21/2014US8863449 Substructure of a mobile drilling rig with a movable center floor section
10/16/2014US20140305710 Downhole drilling assembly
10/16/2014US20140305709 Dual Pipe Drilling Head With Improved Bearing Retention Structure
10/16/2014US20140305708 Reamer With Replaceable Cutters
10/16/2014US20140305707 Fuel Tank
10/16/2014US20140305653 Method And System For An Automatic Milling Operation
10/16/2014US20140305635 Method For Developing Oil And Gas Fields Using High-Power Laser Radiation For More Complete Oil And Gas Extraction
10/14/2014US8858124 Excavation system
10/14/2014US8857539 Mining drill with gradient sensing
10/14/2014US8857537 Method and apparatus for down-the-hole drilling
10/14/2014US8857520 Emergency disconnect system for riserless subsea well intervention system
10/09/2014WO2014163587A1 A triple activity system for drilling operations
10/09/2014US20140299381 Coil Tubing Orienter Tool with Differential Lead Screw Drive
10/09/2014US20140299375 Method of conditioning a wall of a bore section
10/09/2014US20140299328 Subsea wellhead assembly, a subsea installation using said wellhead assembly, and a method for completing a wellhead assembly
10/09/2014US20140299311 System and Method for Accessing Subterranean Deposits
10/09/2014DE102013005857A1 Verfahren zur meißellosen Erstellung von Bohrlöchern für Tiefbohrungen sowie meißelloses Bohrsystem zur Durchführung des Verfahrens Process for the preparation of chisel loose holes for deep drilling and chisel-free drilling system for implementing the method
10/07/2014US8854045 Electronics for a thin bed array induction logging system
10/07/2014US8851796 Pipe retriever
10/07/2014US8851204 Mud motor with integrated percussion tool and drill bit
10/07/2014US8851203 Sonic drill head
10/07/2014US8851184 Process, device, and system to cap and seal oil and gas in a riser pipe
10/07/2014US8851183 Casing hanger lockdown slip ring
10/07/2014US8851178 System and method for fracturing while drilling
10/07/2014US8851167 Mechanical liner drilling cementing system
10/02/2014WO2014160567A1 Closed loop control of drilling toolface
10/02/2014WO2014159925A1 Drilling rig for drilling from underground tunnels
10/02/2014WO2014159910A1 Methods and systems for drilling from underground access tunnels to develop subterranean hydrocarbon reservoirs
10/02/2014WO2014159890A1 Dual underground tunnel system for hydrocarbon exploitation
10/02/2014WO2014159103A1 A system for detecting, containing and removing hydrocarbon leaks in a subsea environment
10/02/2014WO2014159096A1 Sidetracking system and related methods
10/02/2014WO2014158706A1 Monitor and control of directional drilling operations and simulations
10/02/2014WO2014158026A1 Drilling equipment device especially arranged for reaming a borehole in a rock formation and method of reaming a borehole in a rock formation
10/02/2014US20140291029 Beneficiated Clay Viscosifying Additives
10/02/2014US20140291028 Methods of Beneficiating Drilling Fluids Comprising Low- and High-Quality Clays
10/02/2014US20140291024 Closed-Loop Geosteering Device and Method
10/02/2014US20140290692 Methods of Mitigating Bituminous Material Adhesion Using Nano-Particles
10/02/2014DE102013205319A1 Bohr- und Düsenstrahlgestänge Drilling and jet linkage
09/2014
09/30/2014US8844652 Interlocking low profile rotating control device
09/30/2014US8844651 Three dimensional fluidic jet control
09/30/2014US8844649 System and method for steering in a downhole environment using vibration modulation
09/30/2014US8844633 Method for maintaining wellbore pressure
09/30/2014US8844620 Side-tracking system and related methods
09/30/2014CA2809264C Magnetic latching device for downhole wellbore intercept operations
09/30/2014CA2738506C Low headroom confined space geoexchange drilling system and method
09/30/2014CA2729542C Reaming tool
09/25/2014WO2014152699A1 Underreamer for increasing a wellbore diameter
09/25/2014WO2014149173A1 Ram accelerator system
09/25/2014WO2014149114A2 High power laser tunneling mining and construction equipment and methods of use
09/25/2014US20140284110 Rotary Steerable Drilling System
09/25/2014US20140284107 Small drilling apparatus
09/24/2014EP2781683A1 Drilling machine for drilling for example soil or rock formations, and method for using such machine
09/24/2014EP2781682A1 Small drilling device
09/24/2014EP2780531A1 Look-ahead of the bit applications
09/23/2014US8843220 Position and velocity measurement tool for standard and directional drilling
09/23/2014US8839885 Latching configuration for a microtunneling apparatus
09/23/2014US8839882 Drilling device and drilling method
09/23/2014US8839880 Subsea drilling with casing
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