| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 05/23/2013 | US20130125642 Sensor device for a down hole surveying tool |
| 05/23/2013 | US20130125641 Micro-Sonic Density Imaging While Drilling Systems and Methods |
| 05/23/2013 | CA2856036A1 Systems and methodology for detecting a conductive structure |
| 05/23/2013 | CA2855930A1 Apparatus and method to produce data pulses in a drill string |
| 05/23/2013 | CA2855305A1 Enhanced resistivity measurement apparatus, methods, and systems |
| 05/23/2013 | CA2854443A1 Directing a drilling operation using an optical computation element |
| 05/22/2013 | EP2594898A2 Rugged Three-Axis Inclinometer |
| 05/22/2013 | EP2594735A1 Methods and systems for determining standoff between a downhole tool and a geological formation |
| 05/22/2013 | EP2594734A1 Well data acquisition tool probe guard |
| 05/22/2013 | EP2594732A1 Heat dissipation in downhole equipment |
| 05/22/2013 | EP2593817A2 Acoustic waveform stacking using azimuthal and/or standoff binning |
| 05/22/2013 | EP2593641A2 Process for backfilling a borehole and arrangement therefor |
| 05/22/2013 | CN202946149U Logging while drilling natural gamma logging instrument |
| 05/22/2013 | CN202946148U Ultrasonic well wall imaging device |
| 05/22/2013 | CN202946147U Active rapid pressure gauge for shaft coal uncovering |
| 05/22/2013 | CN202946146U Bailing well general testing system |
| 05/22/2013 | CN202946145U Oil well working fluid level intelligent collecting and monitoring system |
| 05/22/2013 | CN202946144U Hole depth measuring device for drilling machine |
| 05/22/2013 | CN202946143U Positioning device for through-wall punching |
| 05/22/2013 | CN202946142U Annulus pressure monitoring connector of pressure monitor while drilling |
| 05/22/2013 | CN202946141U Downhole device for drilling pump state inspection |
| 05/22/2013 | CN202946140U Detector of popping angle of popping arm of underground water injection instrument |
| 05/22/2013 | CN202946139U Preset crack fracturing slitting test system |
| 05/22/2013 | CN202946138U Downhole data measurement and transmission device |
| 05/22/2013 | CN202946137U Digital indicator of pumping well based on multi-sensor information fusion |
| 05/22/2013 | CN202946136U Flow water retention meter |
| 05/22/2013 | CN202946135U Double-U-pipe type high-temperature high-pressure sensor of fluid density |
| 05/22/2013 | CN103119244A Downhole closed-loop geosteering methodology |
| 05/22/2013 | CN103117717A Power amplifier and implementing method thereof, transmitter and wireless measurement while drilling system |
| 05/22/2013 | CN103114847A Oil field underground liquid level detection method and device |
| 05/22/2013 | CN103114846A Post processing system of inclinometry data based on fiber-optic gyroscope inclinometer |
| 05/22/2013 | CN103114845A Fiber-optic gyroscope inertial measurement unit (IMU) framework for oil clinometer |
| 05/22/2013 | CN103114844A Instrument eccentricity correction method in horizontal well acoustic cement bond logging |
| 05/22/2013 | CN103114843A Multi-layer multi-section continuous oil testing system without lifting tubular column and operation method thereof |
| 05/22/2013 | CN103114842A Experimental facility and model system thereof for simulating thickened oil steam huff and puff oil extraction |
| 05/22/2013 | CN103114841A Bridge type concentric directly-reading testing and regulating meter |
| 05/22/2013 | CN103114840A Calculating method and device of organic carbon content of high-over high mature shale |
| 05/22/2013 | CN103114839A One-way transmission type retractor used under horizontal well |
| 05/22/2013 | CN103114832A Interaction type stratified water injection measuring method |
| 05/22/2013 | CN102128027B Infrasonic wave generator for testing liquid level of oil well |
| 05/22/2013 | CN102102512B Fully mechanized mining working face bending detection and straightening method and system |
| 05/22/2013 | CN101839130B Gas sample acquisition and analysis device for coal mine gob |
| 05/22/2013 | CN101793142B True triaxial drilling leakage blockage simulation assessment device |
| 05/22/2013 | CN101158267B Method and system for accessing subterranean deposits from the surface |
| 05/21/2013 | US8443915 Through drillstring logging systems and methods |
| 05/21/2013 | US8443884 Directional setting tool and associated methods |
| 05/21/2013 | US8443883 Apparatus and method for detecting poor hole cleaning and stuck pipe |
| 05/21/2013 | CA2794785A1 Flexible sealing connector |
| 05/21/2013 | CA2532115C Method and apparatus for mud pulse telemetry |
| 05/16/2013 | WO2013071189A1 Method and system for reservoir surveillance utilizing a clumped isotope and/or noble gas data |
| 05/16/2013 | WO2013071018A1 Downhole dynamics measurements using rotating navigation sensors |
| 05/16/2013 | WO2013070382A1 Combined rheometer/mixer having helical blades and methods of determining rheological properties of fluids |
| 05/16/2013 | WO2013070345A1 Real time downhole sensor data for controlling surface stimulation equipment |
| 05/16/2013 | WO2013070206A1 Apparatus and methods for monitoring a core during coring operations |
| 05/16/2013 | WO2013070205A1 Instrumented core barrels and methods of monitoring a core while the core is being cut |
| 05/16/2013 | WO2013070200A1 Drill bit for performing electromagnetic measurements in a subterranean formation |
| 05/16/2013 | WO2013043682A3 System and method for correction of downhole measurements |
| 05/16/2013 | WO2013039782A3 System, apparatus and method for generating power in a fluid conduit |
| 05/16/2013 | WO2013022558A3 Methods for monitoring the formation and transport of an acidizing fluid using opticoanalytical devices |
| 05/16/2013 | WO2012174571A3 Subterranean tool with sealed electronic passage across multiple sections |
| 05/16/2013 | WO2012010853A3 Real-time field friction reduction meter and method of use |
| 05/16/2013 | WO2009035796A3 Groundwater monitoring system |
| 05/16/2013 | US20130124096 Determining Drill String Status in A Wellbore |
| 05/16/2013 | US20130120154 Multiple distributed sensors along a drillstring |
| 05/16/2013 | US20130118810 Boring tool control using remote locator |
| 05/16/2013 | US20130118809 System and method for steering a relief well |
| 05/16/2013 | US20130118752 Managed pressure cementing |
| 05/16/2013 | US20130118733 Wellbore condition monitoring sensors |
| 05/16/2013 | US20130118731 Down hole surveying tool |
| 05/16/2013 | US20130118249 Method and Apparatus for Detecting Fluid Flow Modulation Telemetry Signals Transmitted from and Instrument in A Wellbore |
| 05/16/2013 | US20130118248 Method and apparatus for estimating a downhole fluid property using a charged particle densitometer |
| 05/16/2013 | CA2855292A1 Downhole dynamics measurements using rotating navigation sensors |
| 05/16/2013 | CA2854995A1 Downhole structure sections |
| 05/16/2013 | CA2854491A1 Combined rheometer/mixer having helical blades and methods of determining rheological properties of fluids |
| 05/16/2013 | CA2854117A1 Real time downhole sensor data for controlling surface stimulation equipment |
| 05/16/2013 | CA2854087A1 Drill bit for performing electromagnetic measurements in a subterranean formation |
| 05/16/2013 | CA2853938A1 Apparatus and method of forming a plug in a wellbore |
| 05/16/2013 | CA2853312A1 Method and system for reservoir surveillance utilizing a clumped isotope and/or noble gas data |
| 05/16/2013 | CA2852407A1 Apparatus and methods for monitoring a core during coring operations |
| 05/16/2013 | CA2852403A1 Instrumented core barrels and methods of monitoring a core while the core is being cut |
| 05/16/2013 | CA2794157A1 Rugged three-axis inclinometer |
| 05/16/2013 | CA2794048A1 Methods and systems for a reliable automatic reserve battery switch |
| 05/15/2013 | EP2592446A2 Mud pulse telemetry |
| 05/15/2013 | EP2592445A2 Mud pulse telemetry |
| 05/15/2013 | EP2592444A2 Mud pulse telemetry |
| 05/15/2013 | EP2592443A2 Mud pulse telemetry |
| 05/15/2013 | EP2592224A2 Methods and systems for drilling |
| 05/15/2013 | EP2592223A2 Methods and systems for drilling |
| 05/15/2013 | EP2592222A2 Methods and systems for drilling |
| 05/15/2013 | EP2592219A1 Monitoring a subsea control module |
| 05/15/2013 | EP2591383A1 Method and system of determining constituent components of a fluid sample |
| 05/15/2013 | EP2591201A2 Downhole inductive coupler assemblies |
| 05/15/2013 | EP2591200A2 Inductive couplers for use in a downhole environment |
| 05/15/2013 | CN202937258U Oil field well cementation test equipment and oil field well cementation test data transmission system |
| 05/15/2013 | CN202937257U Simulation device of underground nuclear magnetic resonance logging instrument |
| 05/15/2013 | CN202937256U Wellhead data collecting device for variable flow well testing |
| 05/15/2013 | CN202937255U Tester for depth, dip angle, azimuth angle and slope/wall angle of anchor eye |
| 05/15/2013 | CN202937254U Anchor eye tester |
| 05/15/2013 | CN202937253U Tester for depth, dip angle and azimuth angle of blast hole |
| 05/15/2013 | CN202937252U Buffering nipple |