| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 01/17/2013 | US20130014942 Control Line Space Out Tool |
| 01/17/2013 | US20130014940 Estimating a Wellbore Parameter |
| 01/17/2013 | US20130014939 Electric Hydraulic Interface For A Modular Downhole Tool |
| 01/17/2013 | US20130014934 Smart Drop-Off Tool and Hang-Off Tool for a Logging String |
| 01/17/2013 | US20130014933 Device for a Plug Construction for Conducting Well Tests |
| 01/17/2013 | US20130014932 Automatic modular maintenance device operating in the annulus of a well for the production of hydrocarbons |
| 01/17/2013 | CA2841591A1 Smart drop-off tool and hang-off tool for a logging string |
| 01/17/2013 | CA2841412A1 Estimating fluid levels in a progressing cavity pump system |
| 01/17/2013 | CA2841403A1 Method of acoustic surveying |
| 01/17/2013 | CA2841225A1 Positioning method |
| 01/17/2013 | CA2841125A1 Formation testing in managed pressure drilling |
| 01/17/2013 | CA2841040A1 System and method for performing wellbore stimulation operations |
| 01/17/2013 | CA2840942A1 Method for simulating fractional multi-phase/multi-component flow through porous media |
| 01/17/2013 | CA2839732A1 Estimating a wellbore parameter |
| 01/17/2013 | CA2839682A1 Optical network configuration with intrinsic delay for swept-wavelength interferometry systems |
| 01/17/2013 | CA2838957A1 Depth/orientation detection tool and methods thereof |
| 01/16/2013 | EP2546456A1 Positioning method |
| 01/16/2013 | EP2546455A2 Control line space out tool |
| 01/16/2013 | EP2545249A1 Subterranean formation deformation monitoring systems |
| 01/16/2013 | CN202676337U Depth tension monitoring device |
| 01/16/2013 | CN202674049U Axial oil lubrication block |
| 01/16/2013 | CN202673282U Eccentric water injection well seal testing tool |
| 01/16/2013 | CN202673281U Oil pipe pressure test valve for horizontal well |
| 01/16/2013 | CN202673280U CBM (Coal Bed Methane) well downhole pressure real-time monitoring system |
| 01/16/2013 | CN202673279U Calibration console of inclinometer while drilling |
| 01/16/2013 | CN202673278U Measuring tool for moveable guard of wireless drilling inclinometer |
| 01/16/2013 | CN202673277U Intra-logging catcher |
| 01/16/2013 | CN202673276U Single point sensor supporting tank |
| 01/16/2013 | CN202673275U Real-time monitoring device for operating condition of drilling pump |
| 01/16/2013 | CN202673274U Wheel type extensible continuous crawl tractor for horizontal well |
| 01/16/2013 | CN202673273U Detecting system for mass flow of returned solid particles from wellbore |
| 01/16/2013 | CN202673272U Rotating sound wave probe |
| 01/16/2013 | CN202673270U Gas-liquid separation metering device |
| 01/16/2013 | CN202673267U Horizontal well underground physical simulation test device |
| 01/16/2013 | CN202673237U Antitheft wellhead pressure tapping device for oilfield |
| 01/16/2013 | CN202673188U Logging blowout prevention pipe hydraulic pressure lifting device |
| 01/16/2013 | CN102884281A Method and apparatus to adjust weight-on-bit/torque-on-bit sensor bias |
| 01/16/2013 | CN102881280A Passive suppressing method for downhole noise and echo for sound transmission technology of drill string |
| 01/16/2013 | CN102877839A Acoustic transducer and logging device thereof |
| 01/16/2013 | CN102877838A Electrical power short joint |
| 01/16/2013 | CN102877837A Logging underground instrument bus system based on FlexRay bus |
| 01/16/2013 | CN102877836A Localizable direct-reading type dual-flow water regulating device |
| 01/16/2013 | CN102877835A Well temperature forecasting method for horizontal production well in fire flooding process |
| 01/16/2013 | CN102877834A Device and method for quickly testing bubble point pressure in well |
| 01/16/2013 | CN102877833A Compensated pressure measurement drilling gas-water separation drainage device |
| 01/16/2013 | CN102877832A Method and system for measuring movable liquid surface of oil well |
| 01/16/2013 | CN102877831A Mining drilling depth monitoring device |
| 01/16/2013 | CN102877830A Underground orientation method based on rotating magnetic field |
| 01/16/2013 | CN102877829A Correcting mechanism for perpendicularity and section of pile hole and construction method for correcting mechanism |
| 01/16/2013 | CN102877828A CT (Computed Tomography) imaging method of three-dimensional multi-well combined well land |
| 01/16/2013 | CN102877827A Acoustic system module of acoustic logging while drilling |
| 01/16/2013 | CN102877826A Internal closed logging device |
| 01/16/2013 | CN102877825A Impedance type flow rate water content measuring instrument |
| 01/16/2013 | CN102877819A Carbon dioxide cyclic injection system of coal-bed gas well |
| 01/16/2013 | CN102877491A Simple hole verifier and application method thereof |
| 01/16/2013 | CN102134989B Method for point measurement of well by gyroscopic inclinometer |
| 01/16/2013 | CN101899970B Working parameter testing system of vertical drilling tool and working parameter testing method thereof |
| 01/16/2013 | CN101852078B Electromagnetic distance measurement guide system for double solenoid set during drilling |
| 01/16/2013 | CN101163860B Low temperature system for underground barriers |
| 01/15/2013 | US8354279 For determining the source of treatment fluids being produced from a production formation having multiple zones |
| 01/15/2013 | US8353677 System and method for sensing a liquid level |
| 01/15/2013 | US8353365 Boring tool control using remote locator |
| 01/15/2013 | US8353350 Subsea test apparatus, assembly and method |
| 01/15/2013 | US8353339 Apparatus for the measuring of fluid levels and pumping of the same |
| 01/15/2013 | CA2695443C Directional drilling control using modulated bit rotation |
| 01/15/2013 | CA2693486C Valuing future information under uncertainty |
| 01/15/2013 | CA2502165C Bottom hole assembly |
| 01/15/2013 | CA2464799C Method of determining a model for seismic wave velocity in a heterogeneous subsurface formation |
| 01/14/2013 | CA2782897A1 Control line space out tool |
| 01/10/2013 | WO2013006735A2 A space provision system using compression devices for the reallocation of resources to new technology, brownfield and greenfield developments |
| 01/10/2013 | WO2013006252A2 Flowbore mounted sensor package |
| 01/10/2013 | WO2013006165A1 Well drilling methods with automated response to event detection |
| 01/10/2013 | WO2013006159A1 Well tool actuator and isolation valve for use in drilling operations |
| 01/10/2013 | WO2013006075A1 System and method for measuring flow rates for individual petroleum wells in a well pad field |
| 01/10/2013 | WO2013003958A1 Jet pump data tool system |
| 01/10/2013 | WO2012148688A3 A method of providing flow control devices for a production wellbore |
| 01/10/2013 | WO2012094242A3 Method for a pressure release encoding system for communicating downhole information through a wellbore to a surface location |
| 01/10/2013 | WO2011151623A3 Downhole orientation sensing with nuclear spin gyroscope |
| 01/10/2013 | WO2011134636A3 Drilling or extraction pipe string |
| 01/10/2013 | US20130008717 Solid state wear tracers for drill bits |
| 01/10/2013 | US20130008661 Subsea well intervention module |
| 01/10/2013 | US20130008650 Electromagnetic depth/orientation detection tool and methods thereof |
| 01/10/2013 | US20130008649 Method and module for determination of erosion in systems |
| 01/10/2013 | US20130008648 Apparatus and Method for Well Operations |
| 01/10/2013 | US20130008647 Apparatus and Method for Well Operations |
| 01/10/2013 | US20130008646 Depth/orientation detection tool and methods thereof |
| 01/10/2013 | US20130008645 Intelligent Well System And Method |
| 01/10/2013 | US20130008640 Flowbore Mounted Sensor Package |
| 01/10/2013 | CA2877194A1 Jet pump data tool system |
| 01/10/2013 | CA2841841A1 A space provision system using compression devices for the reallocation of resources to new technology, brownfield and greenfield developments |
| 01/10/2013 | CA2841771A1 Well drilling methods with automated response to event detection |
| 01/10/2013 | CA2840888A1 System and method for measuring flow rates for individual petroleum wells in a well pad field |
| 01/10/2013 | CA2837180A1 Well tool actuator and isolation valve for use in drilling operations |
| 01/09/2013 | EP2543813A1 A telemetry system, a pipe and a method of transmitting information |
| 01/09/2013 | EP2542867A2 Flow restriction insert for differential pressure measurement |
| 01/09/2013 | EP2542759A1 Colloidal-crystal quantum dots as tracers in underground formations |
| 01/09/2013 | CN202660070U Wired laterally-inclined cable guiding device for direction well |
| 01/09/2013 | CN202660063U Fixing and anti-collision device for cables during wired inclination measurement for directional well |
| 01/09/2013 | CN202659230U Tool for detaching relay receiving short pieces |
| 01/09/2013 | CN202659229U Device for testing direct reading systems for drill stem test pressure meters |