| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 09/11/2013 | CN101466916B In-borehole gas monitor apparatus and method |
| 09/11/2013 | CN101309853B Apparatus for downhole fluids analysis utilizing micro electro mechanical systems (mems) or other sensors |
| 09/11/2013 | CN101086457B Method and device for fluid flow parameters determination |
| 09/10/2013 | US8528663 Apparatus and methods for guiding toolface orientation |
| 09/10/2013 | US8528661 Drill bit with electrical power generation devices |
| 09/10/2013 | US8528637 Downhole depth computation methods and related system |
| 09/10/2013 | US8528636 Instantaneous measurement of drillstring orientation |
| 09/10/2013 | US8528635 Tool to determine formation fluid movement |
| 09/10/2013 | US8528395 Monitoring fluid pressure in a well and retrievable pressure sensor assembly for use in the method |
| 09/10/2013 | US8528394 Assembly and method for transient and continuous testing of an open portion of a well bore |
| 09/10/2013 | US8528381 Downhole instrument calibration during formation survey |
| 09/10/2013 | US8528219 Inclination measurement devices and methods of use |
| 09/10/2013 | CA2673083C Data reduction of images measured in a borehole |
| 09/10/2013 | CA2658704C Optical fiber feedthrough using axial seals for bi-directional sealing |
| 09/10/2013 | CA2527364C Downhole communication |
| 09/08/2013 | CA2770979A1 Method for transmission of data from a downhole sensor array |
| 09/06/2013 | WO2013130527A1 Apparatus and method for determining inner profiles of hollow devices |
| 09/06/2013 | WO2013130447A1 Master plan for dynamic phase machine automation system |
| 09/06/2013 | WO2013130444A1 Automated survey acceptance in dynamic phase machine automation system |
| 09/06/2013 | WO2013130227A1 Testing compressive and tensile strength of cement in a single device |
| 09/06/2013 | WO2013130053A1 Method and apparatus for initialization of a wellbore survey tool via a remote reference source |
| 09/06/2013 | WO2013126955A1 Improvements to downhole surveying and core sample orientation systems, devices and methods |
| 09/06/2013 | CA2829309A1 Method and apparatus for initialization of a wellbore survey tool via a remote reference source |
| 09/05/2013 | US20130228381 Wired or Ported Universal Joint for Downhole Drilling Motor |
| 09/05/2013 | US20130228375 Navigation system |
| 09/05/2013 | US20130228338 Device for Operating Downhole Equipment |
| 09/05/2013 | DE102012004392A1 Apparatus for transmitting information within drill string, through pulses, has a receiving unit for receiving and evaluating information transmitted through pulses generated as sound waves and transmitted through a transmission device |
| 09/04/2013 | EP2634365A1 Apparatus and methods for testing inductively coupled downhole systems |
| 09/04/2013 | EP2633157A2 Downhole tool deployment measurement method and apparatus |
| 09/04/2013 | EP2633152A1 Method for using tracer flowback for estimating influx volumes of fluids from different influx zones |
| 09/04/2013 | CN203176113U Oil field underground test rapid connector |
| 09/04/2013 | CN203175547U Direct-reading type seal examining instrument suitable for concentric adjustable water distributor |
| 09/04/2013 | CN203175546U Shear type screw pump pressure testing device |
| 09/04/2013 | CN203175545U Full-automatic calibrated pre-pressing mechanism of pressure meter |
| 09/04/2013 | CN203175544U Anti-blocking pressure transmission structure |
| 09/04/2013 | CN203175543U Gas-water separation pressure testing device of gas drilling hole |
| 09/04/2013 | CN203175542U Remote measuring device for liquid level position of oil well with pressure |
| 09/04/2013 | CN203175541U Full automatic digital metering device |
| 09/04/2013 | CN203175540U Non-concentrating electromagnetic flow type down-hole measuring and adjusting instrument |
| 09/04/2013 | CN203175539U Three-component induction coil array probe line routing structure |
| 09/04/2013 | CN203175538U Lithological density logger detector |
| 09/04/2013 | CN203175537U Motor drive type releaser |
| 09/04/2013 | CN203175536U Tracing correlation flowmeter |
| 09/04/2013 | CN203175535U Intelligent flow automatic measuring downhole instrument |
| 09/04/2013 | CN203175534U Liquid level monitor |
| 09/04/2013 | CN203175533U Electrode pushing device of through-casing resistivity and energy compensating hydraulic cylinder thereof |
| 09/04/2013 | CN203175532U Movable type acidic gas well underground corrosion monitoring device |
| 09/04/2013 | CN203175531U Testing device used for debugging array induction |
| 09/04/2013 | CN203175516U Interactive separated layer water injection testing and controlling device |
| 09/04/2013 | CN203175515U Novel high-pressure water well pressure drop testing device |
| 09/04/2013 | CN203175511U Pressure measuring sealing barrel |
| 09/04/2013 | CN203175510U Clamping ring type lead drum pressure measuring sealing device |
| 09/04/2013 | CN203175500U Marine non-well-control electric pump lifting technique pipe column |
| 09/04/2013 | CN103282602A Distributed fluid velocity sensor and associated method |
| 09/04/2013 | CN103282601A Methods for improved active ranging and target well magnetization |
| 09/04/2013 | CN103277092A Horizontal well multistage fracturing variable mass multiphase flow simulation experiment device |
| 09/04/2013 | CN103277091A High-temperature well temperature and pressure dynamic monitoring system |
| 09/04/2013 | CN103277090A Drill pipe locating method and device based on dipulse magnetic moment measurement |
| 09/04/2013 | CN103277089A Well-drilling early overflow loss ground monitoring device |
| 09/04/2013 | CN103277088A Method and device for remotely monitoring SAGD (steam assisted gravity drainage) horizontal well |
| 09/04/2013 | CN103277087A Downhole petroleum formation fracturing string tension detecting instrument |
| 09/04/2013 | CN103277086A Detecting device and method of depth encoder for logging |
| 09/04/2013 | CN103277085A Winding sensor for acidizing operation |
| 09/04/2013 | CN103277084A Horizontal well multi-parameter estimation method based on conducting probe array sensor |
| 09/04/2013 | CN103277080A Winding sensor for fracturing operation |
| 09/04/2013 | CN102287181B Well opening cable anti-collision device |
| 09/04/2013 | CN101852076B Underground working condition simulation method for controlled pressure drilling experiment and test |
| 09/03/2013 | US8527205 Gravity interpretation workflow in injection wells |
| 09/03/2013 | US8525995 Optical data transformation |
| 09/03/2013 | US8525986 Method for hydrocarbon well completion |
| 09/03/2013 | US8522896 Consistent drilling fluids engineering and management |
| 08/29/2013 | WO2013126863A1 Mud pulse telemetry mechanism using power generation turbines |
| 08/29/2013 | WO2013126710A1 Systems and methods of determining fluid properties |
| 08/29/2013 | WO2013126409A1 Bending correction for deep reading azimuthal propagation resistivity |
| 08/29/2013 | WO2013126398A1 Acoustic synchronization system, assembly, and method |
| 08/29/2013 | WO2013126396A1 Measurement of downhole component stress and surface conditions |
| 08/29/2013 | WO2013126388A1 Early kick detection in an oil and gas well |
| 08/29/2013 | WO2013126054A1 Downhole telemetry systems and methods with time-reversal pre-equalization |
| 08/29/2013 | WO2013126040A1 Downhole formation testing with automation and optimization |
| 08/29/2013 | WO2013124645A1 Wireless communication |
| 08/29/2013 | WO2013123555A1 Apparatus for aligning drilling machines |
| 08/29/2013 | WO2012175658A3 Tubular device with radiofrequency communication for well head |
| 08/29/2013 | US20130226461 Method for real-time downhole processing and detection of bed boundary for geosteering application |
| 08/29/2013 | US20130220701 Torque Control Device For A Downhole Drilling Assembly |
| 08/29/2013 | US20130220625 Subsea orientation and control system |
| 08/29/2013 | US20130220602 Downhole downlinking system employing a differential pressure transducer |
| 08/29/2013 | US20130220600 Well drilling systems and methods with pump drawing fluid from annulus |
| 08/29/2013 | US20130220594 Tube-in-tube device useful for subsurface fluid sampling and operating other wellbore devices |
| 08/29/2013 | US20130220008 Method for transient testing of oil wells completed with inflow control devices |
| 08/29/2013 | DE102012003832A1 Device for introducing several pipe sections of double U-shaped geothermal probe into ground for producing geothermal energy for heating of houses, has driving devices arranged to move two pipe sections |
| 08/28/2013 | EP2631684A1 Self-detection of a modulating carrier and an optimum carrier in a downhole telemetry system |
| 08/28/2013 | EP2630519A2 Monitoring using distributed acoustic sensing (das) technology |
| 08/28/2013 | EP2630332A1 Device to operate downhole equipment |
| 08/28/2013 | EP2630331A1 Clustered wellhead trunkline protection and testing system with esp speed controller and emergency isolation valve |
| 08/28/2013 | EP2630330A2 Hardened data recording system for drilling rigs and other drilling equipment |
| 08/28/2013 | EP2630329A2 Submersible pump system |
| 08/28/2013 | EP2630325A2 Remotely controllable fluid flow control assembly |
| 08/28/2013 | CN203164630U Remote monitoring device for oil field gas production well |
| 08/28/2013 | CN203164441U Portable air bag isolation drilling pressured water tester |
| 08/28/2013 | CN203161214U Downward opening drill hole sound wave test water plugging device |