| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 06/12/2007 | US7230542 Streamlining data transfer to/from logging while drilling tools |
| 06/12/2007 | US7228912 Method and system to deploy control lines |
| 06/12/2007 | US7228903 Apparatus and method for wireline imaging in nonconductive muds |
| 06/12/2007 | US7228902 High data rate borehole telemetry system |
| 06/12/2007 | US7228900 System and method for determining downhole conditions |
| 06/12/2007 | US7228898 Gravel pack completion with fluid loss control fiber optic wet connect |
| 06/12/2007 | CA2330043C Acoustic logging tool |
| 06/12/2007 | CA2315233C System and method for positioning a tool in a wellbore |
| 06/12/2007 | CA2290892C Well logging method & apparatus |
| 06/07/2007 | WO2007062496A1 Shape-acceleration measurement device and apparatus |
| 06/07/2007 | US20070127780 Digital video borescope for drilled shaft inspection |
| 06/07/2007 | US20070126596 Downhole transmission system comprising a coaxial capacitor |
| 06/07/2007 | US20070126594 Borehole telemetry system |
| 06/07/2007 | US20070125577 Apparatus, system and method for installing boreholes from a main wellbore |
| 06/07/2007 | US20070125535 Method for gravel or frac packing in a wellbore and for monitoring the packing process |
| 06/07/2007 | US20070125531 Wellhead and control stack pressure test plug tool |
| 06/07/2007 | US20070125530 Interactive and/or secure activation of a tool |
| 06/07/2007 | US20070125163 Method for monitoring fluid properties |
| 06/06/2007 | EP1792052A2 Integrated magnetic ranging tool |
| 06/06/2007 | EP1792048A1 Remote gas monitoring apparatus for seabed drilling |
| 06/06/2007 | CN2908855Y Test, perforation and sampling combination pump |
| 06/06/2007 | CN2908779Y Gas-liquid multiphase flow separation rectifier |
| 06/06/2007 | CN2908778Y Releasing gadget tool for underground testing |
| 06/06/2007 | CN1975106A Wireless electromagnetic telemetry system and method for bottomhole assembly |
| 06/06/2007 | CN1975105A Wellbore communication system and method |
| 06/06/2007 | CN1975095A Wired pipe joint with current circuit inductive coupler |
| 06/06/2007 | CN1320254C Biprobe sidewall contact device |
| 06/06/2007 | CA2568481A1 Borehole telemetry system |
| 06/05/2007 | US7227129 Flowshot technique |
| 06/05/2007 | US7225885 Boring tool control using remote locator |
| 06/05/2007 | US7225881 Passive logging sonde auger tool |
| 06/05/2007 | US7225879 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 06/05/2007 | US7225867 Liner top test packer |
| 06/05/2007 | US7225550 System and method for using microgyros to measure the orientation of a survey tool within a borehole |
| 06/05/2007 | CA2440494C Method for measuring formation properties with a time-limited formation test |
| 05/31/2007 | WO2007061989A1 Stress and pore pressure limits using a strength of materials approach |
| 05/31/2007 | WO2007061932A1 Method for monitoring fluid properties |
| 05/31/2007 | WO2007061335A1 Well jet device and the operating method thereof |
| 05/31/2007 | WO2007061334A1 Well jet device and the operating method thereof |
| 05/31/2007 | WO2007021622A3 Method and apparatus for enhancing formation resistivity images obtained with downhole galvanic tools |
| 05/31/2007 | US20070119626 Apparatus and methods for drilling a wellbore using casing |
| 05/31/2007 | CA2628133A1 Method for monitoring fluid properties |
| 05/30/2007 | CN2906061Y Pedimental inclined shaft caliper logger |
| 05/30/2007 | CN2906060Y Power-driven slip type support instrument |
| 05/30/2007 | CN1973110A Closed loop control system for controlling production of hydrocarbon fluid from an underground formation |
| 05/30/2007 | CN1971226A Package structure of optical fiber grating temperature sensor |
| 05/30/2007 | CN1970992A Dynamic test device for composite perforator |
| 05/30/2007 | CN1970991A Method for metering oil production yield and analyzing and optimizing operating condition of oil well and system thereof |
| 05/30/2007 | CN1970990A Method for measuring return flow in petroleum drilling and device therefor |
| 05/30/2007 | CN1318864C Electromagnetic method for determining dip angles independent of mud type and borehole environment |
| 05/29/2007 | US7224288 Link module for a downhole drilling network |
| 05/29/2007 | US7222676 Well communication system |
| 05/29/2007 | CA2422037C Apparatus for acoustic detection of particles in a flow using a fibre optic interferometer |
| 05/29/2007 | CA2274915C An apparatus, system and method to transmit and display acquired well data in near real time at a remote location |
| 05/28/2007 | CA2568950A1 Serialization and database methods for tubulars and oilfield equipment |
| 05/24/2007 | WO2007058899A1 - real-time imaging while drilling |
| 05/24/2007 | WO2007058738A1 Optical sensor use in alternate path gravel packing with integral zonal isolation |
| 05/24/2007 | WO2007018916A3 Method and apparatus for using a data telemetry system over multi-conductor wirelines |
| 05/24/2007 | US20070114062 Drill Bit Assembly with a Logging Device |
| 05/24/2007 | US20070114040 System and Method for Sensing Parameters in a Wellbore |
| 05/24/2007 | US20070114022 Methods of stabilizing unconsolidated subterranean formations |
| 05/24/2007 | US20070113639 Method and apparatus for estimating a property of a downhole fluid using a coated resonator |
| 05/24/2007 | DE112005001554T5 Zeichengabeverfahren Signalling System |
| 05/24/2007 | CA2632916A1 Real-time imaging while drilling |
| 05/23/2007 | EP1787144A1 Transmitter loops in series for geophysical surveys |
| 05/23/2007 | EP1787005A1 Magnetic assemblies for deposit prevention |
| 05/23/2007 | CN2903373Y Blocking dual sensor pressure meter |
| 05/23/2007 | CN2903372Y Cable magnet sign testing apparatus |
| 05/23/2007 | CN2903371Y Testing instrument fall-off proof apparatus |
| 05/23/2007 | CN2903370Y Well logging horse headstall |
| 05/23/2007 | CN2903369Y Intelligent single well triphase flowmeter |
| 05/23/2007 | CN2903368Y External well drilling well bottom data acquiring apparatus |
| 05/23/2007 | CN2903367Y Movable multifunctional under well corrosion monitoring apparatus |
| 05/23/2007 | CN1967619A System and method for transmitting information and its application |
| 05/23/2007 | CN1966935A Method and apparatus for locating well casings from an adjacent wellbore |
| 05/23/2007 | CN1966934A Method for prediction of collapse pressure and fracture pressure of stratum under drill bit while drilling |
| 05/22/2007 | US7221155 Inventory counter for oil and gas wells |
| 05/22/2007 | US7220067 Cable splice protector |
| 05/22/2007 | US7219762 Method and apparatus for acoustic detection of a fluid leak behind a casing of a borehole |
| 05/22/2007 | US7219749 Single solenoid guide system |
| 05/22/2007 | US7219748 Downhole signal source |
| 05/22/2007 | US7219747 Providing a local response to a local condition in an oil well |
| 05/22/2007 | US7219730 Smart cementing systems |
| 05/22/2007 | US7219729 Permanent downhole deployment of optical sensors |
| 05/22/2007 | US7219441 Phreatic surface measurer terminal |
| 05/22/2007 | CA2358015C Resonant acoustic transmitter apparatus and method for signal transmission |
| 05/18/2007 | WO2007056121A1 Monitoring formation properties |
| 05/18/2007 | WO2007034276A3 Apparatus for downhole fluids analysis utilizing micro electro mechanical systems (mems) or other sensors |
| 05/18/2007 | CA2627431A1 Monitoring formation properties |
| 05/17/2007 | US20070110355 Method for installing a double ended distributed sensing fiber optical assembly within a guide conduit |
| 05/17/2007 | US20070108202 Processing hydrocarbons with Debye frequencies |
| 05/17/2007 | US20070107939 Logging-while-coring method and apparatus |
| 05/17/2007 | US20070107938 Multiple receiver sub-array apparatus, systems, and methods |
| 05/17/2007 | US20070107937 Rotary steerable tool including drill string rotation measurement apparatus |
| 05/17/2007 | US20070107912 System and method for deflection compensation in power drive system for connection of tubulars |
| 05/17/2007 | US20070107896 Composite Encased Tool for Subsurface Measurements |
| 05/17/2007 | US20070107507 Mute processing apparatus and method for automatically sending mute frames |
| 05/16/2007 | EP1784663A2 Well site communication system |
| 05/16/2007 | EP1259700B1 Tracer injection in a production well |
| 05/16/2007 | CN2901343Y High density AC electromagnetic measuring resistance rate, instrument |