| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 09/20/2006 | CN1836091A Method for installing a double ended distributed sensing fiber optical assembly within a guide conduit |
| 09/20/2006 | CN1836089A Drilling system and method |
| 09/19/2006 | US7109457 In situ processing of hydrocarbon-bearing formations with automatic impedance matching radio frequency dielectric heating |
| 09/19/2006 | US7108081 Instrumented internal blowout preventer valve for measuring drill string drilling parameters |
| 09/19/2006 | US7107863 Internal riser inspection system, apparatus and methods of using same |
| 09/19/2006 | US7107860 Flow meter using an expanded tube section and sensitive differential pressure measurement |
| 09/19/2006 | CA2415637C Well management system |
| 09/19/2006 | CA2389123C Apparatus and method for measuring formation pressure using a nozzle |
| 09/19/2006 | CA2322884C A non-rotating sensor assembly for measurement-while-drilling |
| 09/19/2006 | CA2245342C Deviated borehole drilling assembly |
| 09/19/2006 | CA2232922C A method and apparatus for acquiring data in a hydrocarbon well |
| 09/14/2006 | WO2006096596A2 Apparatus for controlling a pressure control assembly in a hazardous area |
| 09/14/2006 | US20060202852 Telemetry system with an insulating connector |
| 09/14/2006 | US20060201672 Methods for high temperature lightweight cementing |
| 09/14/2006 | US20060201671 Apparatus for controlling a pressure control assembly in a hazardous area |
| 09/14/2006 | CA2599426A1 Apparatus for controlling a pressure control assembly in a hazardous area |
| 09/13/2006 | EP1700138A2 Magnetometers for measurement-while-drilling applications |
| 09/13/2006 | EP1700003A2 High temperature circuits |
| 09/13/2006 | EP1700002A2 High temperature environment tool system and method |
| 09/13/2006 | EP1700001A2 Instrumented internal blowout preventer valve for measuring drill string drilling parameters |
| 09/13/2006 | EP1699997A1 A telescopic data coupler |
| 09/13/2006 | EP1344091B1 Rib-mounted logging-while-drilling (lwd) sensors |
| 09/13/2006 | CN2816353Y Well-logging self-floatation type instrument carrier |
| 09/13/2006 | CN2816352Y Strong magnetic liquid-relief valve |
| 09/13/2006 | CN1274939C Integrated transmitter surveying while boring (SWB) entrenching powering device for continuation of guided bore hole |
| 09/12/2006 | US7107188 Digital pressure derivative method and program storage device |
| 09/12/2006 | US7107154 Wellbore evaluation system and method |
| 09/12/2006 | US7106210 Method and apparatus for mud pulse telemetry |
| 09/12/2006 | US7104331 Optical position sensing for well control tools |
| 09/12/2006 | US7104324 Intelligent well system and method |
| 09/12/2006 | US7104319 In situ thermal processing of a heavy oil diatomite formation |
| 09/12/2006 | US7103982 Determination of borehole azimuth and the azimuthal dependence of borehole parameters |
| 09/12/2006 | CA2444756C Improved expander tool for downhole use |
| 09/12/2006 | CA2412388C Electromagnetic power and communication link particularly adapted for drill collar mounted sensor systems |
| 09/08/2006 | WO2006093492A2 A method for direct permeability logging of a subterranean formation |
| 09/08/2006 | CA2597006A1 Electric field communication for short range data transmission in a borehole |
| 09/07/2006 | US20060197678 Wireless well communication system and method |
| 09/07/2006 | US20060196660 System and Method for Completing a Subterranean Well |
| 09/07/2006 | US20060196659 Use of distributed temperature sensors during wellbore treatments |
| 09/06/2006 | EP1698912A2 The use of lamb waves in cement bond logging |
| 09/06/2006 | EP1698890A1 System and method of downhole thermal property measurement |
| 09/06/2006 | EP1697766A1 Through tubing real time downhole wireless gauge |
| 09/06/2006 | CN2813891Y Sampler for mating handling diameter measuring device |
| 09/06/2006 | CN2813890Y Wellhead antifalling device |
| 09/06/2006 | CN1828012A System and method of downhole thermal property measurement |
| 09/06/2006 | CN1828009A Overground gathering and transporting system for petroleum exploitation and method thereof |
| 09/05/2006 | US7102125 Method of logging a borehole |
| 09/05/2006 | US7100994 injecting a heated fluid into the well bore, producing a second fluid from the formation, conducting an in situ conversion process in the selected section. |
| 09/05/2006 | US7100699 High tensile loading top entry sub and method |
| 09/05/2006 | US7100698 Make-up control system for tubulars |
| 09/05/2006 | US7100690 Gravel packing apparatus having an integrated sensor and method for use of same |
| 09/05/2006 | US7100689 Sensor apparatus and method of using same |
| 09/05/2006 | US7100688 Fracture monitoring using pressure-frequency analysis |
| 09/05/2006 | US7100304 Megasonic cleaner and dryer |
| 09/05/2006 | CA2372640C The method of and apparatus for determining the path of a well bore under drilling conditions |
| 09/01/2006 | CA2537463A1 Remote power management method and system in a downhole network |
| 08/31/2006 | WO2006091640A2 Apparatus for monitoring pressure using capillary tubing |
| 08/31/2006 | US20060191687 Switchable power allocation in a downhole operation |
| 08/31/2006 | US20060191684 Assembly for determining thermal properties of a formation while drilling or perforating |
| 08/31/2006 | US20060191683 Systems and methods of downhole thermal property measurement |
| 08/31/2006 | US20060191682 Heating and cooling electrical components in a downhole operation |
| 08/31/2006 | US20060191681 Rechargeable energy storage device in a downhole operation |
| 08/31/2006 | US20060191332 Method for measuring formation properties with a formation tester |
| 08/30/2006 | EP1332276B1 Flow controller with downhole pumping system |
| 08/30/2006 | CN2811568Y Standpipe pressure detection mechanism |
| 08/30/2006 | CN2811567Y Piston type pressure balance transmission device for well logging tool |
| 08/30/2006 | CN2811566Y Well deviation azimuth sensor |
| 08/30/2006 | CN1272399C High strength underwater adhesive for deep drilling geostress surveying and preparation method |
| 08/29/2006 | US7099780 Method for interpreting data measured in a hydrocarbon well in production |
| 08/29/2006 | US7098802 Signal connection for a downhole tool string |
| 08/29/2006 | US7098767 Element for use in an inductive coupler for downhole drilling components |
| 08/29/2006 | US7096961 Method and apparatus for performing diagnostics in a wellbore operation |
| 08/29/2006 | US7096955 Long duration fuel cell system |
| 08/29/2006 | US7096944 Well fluids and methods of use in subterranean formations |
| 08/29/2006 | US7096942 In situ thermal processing of a relatively permeable formation while controlling pressure |
| 08/28/2006 | CA2537558A1 Systems and methods of downhole thermal property measurement |
| 08/24/2006 | WO2006087239A1 Device for monitoring a drilling or coring operation and installation comprising such a device |
| 08/24/2006 | WO2006012131A3 Drill pipe assembly |
| 08/24/2006 | WO2005113937A9 Methods and apparatus for measuring formation properties |
| 08/24/2006 | US20060185901 Drilling tool equipped with improved cutting element layout to reduce cutter damage through formation changes, methods of design and operation thereof |
| 08/24/2006 | US20060185900 Programming method for controlling a downhole steering tool |
| 08/24/2006 | US20060185899 Underground drilling device employing down-hole radar |
| 08/24/2006 | US20060185843 Assembly and method for determining thermal properties of a formation and forming a liner |
| 08/24/2006 | US20060185840 Apparatus for monitoring pressure using capillary tubing |
| 08/24/2006 | US20060185430 Piezocomposite transducer for a downhole measurement tool |
| 08/24/2006 | CA2597909A1 Radial expansion of a wellbore casing against a formation |
| 08/24/2006 | CA2596410A1 Device for monitoring a drilling or coring operation and installation comprising such a device |
| 08/23/2006 | EP1693549A1 Method and apparatus for measuring stick slip while drilling |
| 08/23/2006 | EP1692547A1 Rotational pulsation system and method for communicating |
| 08/23/2006 | EP1299615B1 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 08/23/2006 | EP1277051B1 Reservoir monitoring |
| 08/23/2006 | EP1200806B1 Measurement of propagating acoustic waves in compliant pipes |
| 08/23/2006 | CN2809613Y Weight indicating and force measuring device for drilling equipment |
| 08/23/2006 | CN2809214Y Sound wave generator for exploring oil well liquid level |
| 08/23/2006 | CN2809213Y Non-contact friction winch slip ring |
| 08/23/2006 | CN2809203Y Intelligent multifunctional plugging device |
| 08/23/2006 | CN1821588A Sleigh mounted electrohydraulic ratio regulating system |
| 08/22/2006 | US7095232 Determination of borehole geometry inside cased wells with crosswell electromagnetics |
| 08/22/2006 | US7095223 Method of locating an anomaly in a tubular member in a well |
| 08/22/2006 | US7095012 Methods and apparatus for determining chemical composition of reservoir fluids |