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 41 - Equipment or details not covered by groups
Patents for E21B 41 - Equipment or details not covered by groups (7,984)
05/2010
05/14/2010WO2010052490A1 Disposal of well control fluids
05/13/2010US20100116505 Control Package Container
05/12/2010CN201461807U Closed type oil cylinder of brake clearance of hydraulic grease injection adjusting brake calipers
05/12/2010CN201460821U Split-type well head operating floor
05/12/2010CN201460820U Hydraulic disc brake mechanism of power tap
05/12/2010CN201460819U Drill central air supply device
05/12/2010CN101707386A Battery charging management circuit
05/06/2010WO2010051165A2 Elastic hollow particles for annular pressure buildup mitigation
05/06/2010US20100108306 Vibration damping system for drilling equipment
05/05/2010EP2181178A1 Power generation process and system
05/05/2010CN201448090U Controllable constant pressure dropping medicine-feeding device
05/04/2010CA2560275C Method and system for automatic well planning
04/2010
04/29/2010WO2010048188A1 Engineered, scalable underground storage system and method
04/29/2010WO2010047865A1 Nuclear logging tool calibration system and method
04/29/2010WO2010047708A1 Equalizing injection tool
04/29/2010WO2010046686A2 Method and apparatus for subsea installations
04/29/2010WO2009009445A3 Heated fluid injection using multilateral wells
04/29/2010CA2770346A1 Method and apparatus for subsea installations
04/28/2010EP2180135A2 Mounting a module on an underwater structure
04/28/2010EP2179128A2 Funnel system and method
04/28/2010CN201443364U Casing leakage-finding decompression tool
04/27/2010US7704016 Subsea docking system for electronic modules in subsea installations
04/22/2010WO2010044933A2 Oilfield tools comprising modified-soldered electronic components and methods of manufacturing same
04/22/2010WO2010044027A2 Downhole application for a backpressure valve
04/22/2010US20100096124 Systems and methods for injecting or retrieving tubewire into or out of coiled tubing
04/22/2010US20100095760 Shock and vibration environmental recorder for wellbore instruments
04/22/2010CA2741318A1 Downhole application for a backpressure valve
04/21/2010EP2176512A2 Heated fluid injection using multilateral wells
04/21/2010EP1931856B1 Methods and computer-readable media for determining design parameters to prevent tubing buckling in deviated wellbores
04/21/2010CN201439704U Copper sheet encoding pack for drilling tool
04/20/2010US7699102 Rechargeable energy storage device in a downhole operation
04/15/2010WO2010042719A2 Methods and apparatus for mechanical and thermal drilling
04/15/2010WO1998051902A9 Low toxicity corrosion inhibitor
04/15/2010US20100090639 Control System of an Actuator for the Actuation of Submarine Devices
04/15/2010CA2740052A1 Methods and apparatus for mechanical and thermal drilling
04/14/2010CN201437713U Drillrig angle adjusting and supporting mechanism
04/13/2010CA2670129C In situ recovery from a hydrocarbon containing formation
04/13/2010CA2511249C Method for drilling a lateral wellbore with secondary fluid injection
04/13/2010CA2449664C In-situ casting of well equipment
04/13/2010CA2323682C Pulsed cathodic protection system and method
04/08/2010WO2010038072A1 Improved control system
04/08/2010WO2010037448A2 Compressor for pressurising carbon dioxide
04/08/2010US20100087340 Methods and Compositions for Inhibiting Metal Corrosion
04/08/2010CA2739529A1 Improved control system
04/07/2010EP2171806A1 High pressure, high voltage penetrator assembly
04/06/2010US7690432 Apparatus and methods for utilizing a downhole deployment valve
04/06/2010CA2669786C In situ recovery from a hydrocarbon containing formation
04/06/2010CA2565898C Electrical connection assembly
04/06/2010CA2407022C In situ recovery from a hydrocarbon containing formation
04/06/2010CA2382171C Smart shuttles to complete oil and gas wells
04/06/2010CA2306012C Method of retarding sand build up in heavy oil wells
04/01/2010WO2010037137A2 Downhole device actuator and method
04/01/2010WO2010036547A2 Pressure relieving transition joint
04/01/2010WO2010035135A2 Asset integrity management system and methodology for underground storage
04/01/2010WO2009050518A3 Method and device
04/01/2010US20100078179 Electrocoil Tubing Cable Anchor Method
04/01/2010US20100078175 Hydraulic Control System
04/01/2010CA2741765A1 Downhole device actuator and method
04/01/2010CA2736804A1 Pressure relieving transition joint
03/2010
03/31/2010CN201433743Y Multifunctional workover rig for petroleum production and maintenance
03/30/2010CA2669788C In situ recovery from a hydrocarbon containing formation
03/30/2010CA2669779C In situ recovery from a hydrocarbon containing formation
03/30/2010CA2669559C In situ recovery from a hydrocarbon containing formation
03/30/2010CA2586402C Remote delivery of latex drag-reducing agent
03/30/2010CA2444815C Torque-generating apparatus
03/29/2010CA2639986A1 Method of supplying fuel gas to equipment at a well site
03/25/2010WO2009125293A3 Method and system for the extinction of an underwater well for the extraction of hydrocarbons under uncontrolled fluid discharge conditions
03/25/2010US20100071958 Blast Hole Drill Bit Carousel And A Blast Hole Drill Including A Blast Hole Drill Bit Carousel
03/25/2010US20100071906 System and method for simultaneous sea drilling operations
03/24/2010CN201428763Y Friction disc, brake disc thereof and oil drilling rig applying same
03/24/2010CN100595416C Roller cone drill bits with enhanced cutting elements and cutting structures
03/23/2010CA2562168C Method and apparatus for running two tubing strings into a well
03/23/2010CA2515315C Warning device to prevent clutch burning on a well service rig
03/23/2010CA2512325C Apparatus and device for minimizing slippage on a drum clutch
03/22/2010CA2679812A1 Wellsite surface equipment systems
03/18/2010WO2010029285A2 Improvements in or relating to carbon sequestration
03/18/2010CA2639675A1 A method and system for monitoring an oil production tank
03/16/2010US7677319 Subsea tree cap and method for installing the subsea tree cap
03/11/2010WO2010026400A2 Process for generating hydrogen
03/11/2010US20100059221 Subsea fluid sampling and analysis
03/11/2010US20100059217 Method and Apparatus for Mitigating Environmental Impact Due to Fluid Leaks
03/10/2010EP2161406A1 Method and apparatus for configuring oil and/or gas producing system
03/04/2010WO2006051250A8 Remote actuation of a downhole tool
03/04/2010US20100051284 Valve trigger for downhole tools
03/03/2010EP2159370A2 Passable no-go device for downhole valve
03/03/2010CN201416418Y Connecting device of drilling machine components
03/03/2010CN201416389Y Hammer drill silencing cap
03/02/2010US7672818 Method for solving implicit reservoir simulation matrix equation
03/02/2010US7669664 Apparatus and method for opening and closing lateral boreholes
02/2010
02/25/2010WO2010020353A1 System and method for connecting and aligning a compliant guide
02/24/2010CN201412121Y Cylinder type drill rod changing mechanism for drilling machine
02/23/2010CA2635161C Downhole tubular string connections
02/23/2010CA2483957C Method of drilling and completing multiple wellbores inside a single caisson
02/18/2010WO2010018401A1 Installation tube
02/17/2010EP2153008A2 Power transmission system for use with downhole equipment
02/17/2010CN201407013Y Coiled tubing, rod working device
02/17/2010CN201407012Y Integral drilling well mud vehicle
02/16/2010US7661436 Liquid seal for recovering flared gas
02/16/2010CA2568933C Method and apparatus and program storage device adapted for automatic drill bit selection based on earth properties
02/13/2010CA2686510A1 Consumable downhole tool
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