| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 08/30/2012 | US20120217068 Lateral Well Drilling Apparatus and Method |
| 08/30/2012 | CA2828202A1 Metallic nanoparticle biocide in industrial applications |
| 08/30/2012 | CA2827733A1 Subsea conductor anchor |
| 08/30/2012 | CA2825340A1 Method of introducing treatment agents into a well or flow conduit |
| 08/28/2012 | US8251151 Apparatus and methods for tubular makeup interlock |
| 08/23/2012 | US20120211232 Subsea conductor anchor |
| 08/23/2012 | US20120211231 Segmented Fiber Optic Coiled Tubing Assembly |
| 08/22/2012 | CN202391388U Anti-freezing device for air/water pipe of rotary drilling machine |
| 08/16/2012 | WO2012107108A1 Signal and power transmission in hydrocarbon wells |
| 08/16/2012 | CA2826671A1 Signal and power transmission in hydrocarbon wells |
| 08/15/2012 | EP2487327A1 Subsea electronic system |
| 08/15/2012 | EP2487326A1 Subsea electronic system |
| 08/15/2012 | EP2487103A1 Actuator apparatus |
| 08/15/2012 | EP2486228A2 Method and apparatus for drilling a probabilistic approach |
| 08/15/2012 | CN102639812A Subsurface reservoir analysis based on fluid injection |
| 08/15/2012 | CN102635323A Moveable combination of guide rod and milling cone |
| 08/14/2012 | CA2637304C Coiled tubing wellbore cleanout |
| 08/09/2012 | US20120199358 Horizontal connecting device |
| 08/08/2012 | EP2484863A2 Novel activating mechanism for controlling the operation of a downhole tool |
| 08/08/2012 | EP2483513A1 Pressure control device with remote orientation relative to a rig |
| 08/08/2012 | CN202370486U Valve clack detection tool for underground safety valve |
| 08/08/2012 | CN202370485U Medium guiding mechanism for drilling machine |
| 08/07/2012 | CA2674434C Apparatus and methods for utilizing a downhole deployment valve |
| 08/07/2012 | CA2482362C Service tool with flow diverter and associated method |
| 08/02/2012 | WO2012102694A1 Wellbore knock-out chamber and related methods of use |
| 08/01/2012 | EP2480758A2 Method and apparatus for determining locations of multiple casings within a wellbore conductor |
| 08/01/2012 | CN102619489A Quantitative constant-current continuous-feeding anti-scale and anti-separation device for closed wellhead |
| 08/01/2012 | CA2740664A1 Apparatus for connecting downhole tools to a wireline |
| 07/31/2012 | US8230913 Expandable device for use in a well bore |
| 07/26/2012 | US20120186875 Hydraulic Drilling Method with Penetration Control |
| 07/26/2012 | US20120186822 Modular pressure management oil spill containment system and method |
| 07/25/2012 | CN102606111A Method for preventing tubular column from corrosion in multi-element heat fluid thermal recovery process |
| 07/24/2012 | US8226326 Arctic platform |
| 07/24/2012 | US8225866 In situ recovery from a hydrocarbon containing formation |
| 07/19/2012 | US20120181044 Flow control diverter valve |
| 07/19/2012 | US20120181039 Filtration systems for chemical fluids |
| 07/19/2012 | US20120181038 Subsea winch |
| 07/19/2012 | US20120181017 Expandable Device for Use in a Well Bore |
| 07/18/2012 | EP2475843A2 Subsurface reservoir analysis based on fluid injection |
| 07/18/2012 | EP2475835A2 Valves, bottom hole assemblies, and methods of selectively actuating a motor |
| 07/18/2012 | CN202338287U 模块化污物收集槽 Modular dirt collection tank |
| 07/18/2012 | CN102597417A Integrated enhanced oil recovery process |
| 07/17/2012 | CA2666648C A clamp device for belt connection |
| 07/17/2012 | CA2666211C A clearance method and device for the oil pumping unit driven by compound permanent magnet motor |
| 07/17/2012 | CA2660306C Laminate pressure-containing body for a well tool |
| 07/17/2012 | CA2512540C Wireline stripper for attachment to drill pipe |
| 07/12/2012 | WO2012094676A2 Apparatus and method for supplying electrical power to an electrocrushing drill |
| 07/12/2012 | WO2012094194A2 Low equivalent circulation density setting tool |
| 07/12/2012 | US20120175124 Stab plates and subsea connection equipment |
| 07/12/2012 | US20120175122 Electronics module |
| 07/12/2012 | CA2823708A1 Low equivalent circulation density setting tool |
| 07/11/2012 | EP2474705A2 Separation device |
| 07/11/2012 | CN102575678A Method for delivering fluids using centrifugal pumps |
| 07/11/2012 | CN102561997A Subsea tree workover control system |
| 07/05/2012 | WO2012064812A3 Emergency control system for subsea blowout preventer |
| 07/05/2012 | US20120168169 Subsea tree workover control system |
| 07/04/2012 | CN202300326U 一种防砸地滑车 An anti-smashing tackles |
| 07/04/2012 | CN1664300B Roller cone drill bits with enhanced drilling stability and extended life of associated bearings and seals |
| 06/28/2012 | WO2012087149A1 Technical system, method and uses for dosing of at least one liquid treatment means into injection water to an injection well |
| 06/28/2012 | WO2012085102A1 Lateral junction assembly |
| 06/28/2012 | US20120160509 Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer |
| 06/28/2012 | CA2822752A1 Lateral junction assembly |
| 06/27/2012 | EP2469012A1 Lateral junction assembly |
| 06/27/2012 | EP2467568A2 A method and an apparatus for obtaining energy by expanding a gas at a wellhead |
| 06/27/2012 | EP2467567A2 System for flare gas recovery |
| 06/27/2012 | CN101535189B Treating liquids in oil extraction |
| 06/26/2012 | CA2544594C Method and system for injecting a treatment fluid into a well |
| 06/21/2012 | WO2012082216A1 Systems and methods for injecting a particulate mixture |
| 06/21/2012 | US20120152559 System and Method for Cathodic Protection of a Subsea Well-Assembly |
| 06/21/2012 | US20120152555 Circuit Functional Test System and Method |
| 06/21/2012 | US20120152554 Devices and Methods for Transmitting EDS Back-up Signals to Subsea Pods |
| 06/21/2012 | CA2821930A1 Systems and methods for injecting a particulate mixture |
| 06/20/2012 | EP2466061A2 Devices and methods for locally replacing seal surface |
| 06/20/2012 | EP2142451B1 Disposal of slurry in underground geologic formations |
| 06/19/2012 | CA2651686C Apparatus and methods for utilizing a downhole deployment valve |
| 06/13/2012 | EP2064411B1 Downhole hydraulic control system with failsafe features |
| 06/07/2012 | WO2011126617A3 Tubular embedded nozzle assembly for controlling the flow rate of fluids downhole |
| 06/07/2012 | US20120138306 Production manifold accessory |
| 06/07/2012 | CA2819031A1 Improvements in heat flow control for molding downhole equipment |
| 06/06/2012 | EP2460973A2 Hydraulic control system for actuating downhole tools |
| 06/05/2012 | US8191646 Method for protecting hydrocarbon conduits |
| 05/31/2012 | WO2012069540A1 Wireless downhole unit |
| 05/31/2012 | WO2012068610A1 Flow measurement |
| 05/31/2012 | WO2012030814A3 Distributed fiber optic sensor system with improved linearity |
| 05/31/2012 | WO2011139399A3 Tunable floating seal insert |
| 05/31/2012 | US20120136577 Systems and methods for monitoring corrosion in a well |
| 05/31/2012 | CA2818850A1 Wireless downhole unit |
| 05/30/2012 | EP2458137A1 Wireless downhole unit |
| 05/30/2012 | EP2457636A1 Carbon capture systems and methods with selective sulfur removal |
| 05/30/2012 | EP2456951A1 Method for integrated enhanced oil recovery from heterogeneous reservoirs |
| 05/30/2012 | CN102482930A 用于将液压井控制流体泵送到生产流线内的泵 Means for controlling the hydraulic fluid pump to pump the well production flow line within the |
| 05/30/2012 | CN102482927A 用于密封地下钻孔和执行其它线缆井下旋转操作的装置及方法 Apparatus and method for sealing underground cables underground drilling and perform other operations for rotation |
| 05/29/2012 | CA2537186C Downhole power generation and communications apparatus and method |
| 05/24/2012 | WO2012067520A1 Removable guidepost extension |
| 05/24/2012 | US20120128433 Conical piled monopod |
| 05/24/2012 | US20120124934 Arctic Platform |
| 05/23/2012 | CN202228045U Dustproof guide sleeve for drilling machine |
| 05/23/2012 | CN102472086A 限流器 Flow restrictor |
| 05/23/2012 | CN101555780B Self-operated drop instillator |
| 05/23/2012 | CA2723639A1 Gas box heater |