| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 12/31/2013 | US8616282 System and method for determining downhole fluid parameters |
| 12/31/2013 | US8616274 System and method for remote wellbore servicing operations |
| 12/31/2013 | US8616051 Method of analyzing a number of hydrocarbons contained in a drilling fluid, and associated device |
| 12/27/2013 | WO2013192518A1 High temperature supercapacitor |
| 12/27/2013 | WO2013192365A1 Detecting a drill string washout event |
| 12/27/2013 | WO2013192200A1 Apparatus and method for kick detection using acoustic sensors |
| 12/27/2013 | WO2013192139A1 Methods and systems of increasing signal strength of oilfield tools |
| 12/27/2013 | WO2013192067A1 Autonomous untethered well object |
| 12/27/2013 | WO2013191901A1 Monitoring of steam chamber growth |
| 12/27/2013 | WO2013191886A1 Thermal optical fluid composition detection |
| 12/27/2013 | WO2013191749A1 Fracture aperture estimation using multi-axial induction tool |
| 12/27/2013 | WO2013191748A1 Far field in situ maximum horizontal stress direction estimation using multi-axial induction and borehole image data |
| 12/27/2013 | WO2013191686A1 Magnetic field downhole tool attachment |
| 12/27/2013 | WO2013191561A1 Pressure sensing device and method for using the same |
| 12/27/2013 | WO2013188903A1 An apparatus, system and method for actuating downhole tools in subsea drilling operations |
| 12/27/2013 | WO2013166129A3 Low frequency broad band ultrasonic transducers |
| 12/27/2013 | WO2013090385A3 High pressure fiber optic sensor system |
| 12/27/2013 | WO2013029973A3 Acoustic system and method for transmitting signals in bores |
| 12/27/2013 | CA2876895A1 Detecting a drill string washout event |
| 12/26/2013 | US20130345984 Methods and Apparatus to Process Measurements Associated with Drilling Operations |
| 12/26/2013 | US20130342354 System and method for downhole telmetry |
| 12/26/2013 | US20130341095 Instrumented Drilling System |
| 12/26/2013 | US20130341094 Apparatus and method for kick detection using acoustic sensors |
| 12/26/2013 | US20130341093 Drilling risk avoidance |
| 12/26/2013 | US20130341092 Apparatus and method for drilling a well |
| 12/26/2013 | US20130341091 Drilling Speed and Depth Computation for Downhole Tools |
| 12/26/2013 | US20130341012 Method for tracking a treatment fluid in a subterranean formation |
| 12/26/2013 | US20130341011 Debris resistant internal tubular testing system |
| 12/26/2013 | US20130341009 Detector system of slickline irregularities |
| 12/26/2013 | US20130341008 Thermal optical fluid composition detection |
| 12/26/2013 | US20130340998 Method and apparatus for inspecting and tallying pipe |
| 12/26/2013 | US20130340997 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 12/25/2013 | EP2677116A1 Method and apparatus to detect an oil/water contact |
| 12/25/2013 | EP2675996A2 Measurement pretest drawdown methods and apparatus |
| 12/25/2013 | CN203362158U Spindle assembly for pulse generator |
| 12/25/2013 | CN203362157U Minor diameter pulse generation device |
| 12/25/2013 | CN203362156U Novel oil filling trolley |
| 12/25/2013 | CN203362155U Clinometer for high-precision radial drill holes inside rock-plug blasting cave |
| 12/25/2013 | CN203362154U Protective barrel for pulse generator |
| 12/25/2013 | CN203362153U Novel non-magnetic drill collar connection compensation device |
| 12/25/2013 | CN203362152U Acoustic amplitude variable density logging combination instrument source chamber device |
| 12/25/2013 | CN203362151U Damping device dedicated for measurement while drilling apparatus |
| 12/25/2013 | CN203362150U Implantable thickened oil well sand production monitoring device |
| 12/25/2013 | CN203362119U Logging sludge scraper protection device |
| 12/25/2013 | CN203362087U Outer shell of middle body for pulser |
| 12/25/2013 | CN103473913A Wireless data transmission method used for intelligent oil production system |
| 12/25/2013 | CN103473894A Earthquake monitoring and early warning system and working method thereof |
| 12/25/2013 | CN103470287A Sounding grouting pipe and sounding method |
| 12/25/2013 | CN103470251A Pressure compensation structure of nuclear magnetic resonance logger |
| 12/25/2013 | CN103470249A Apparatus and method for directional resistivity measurement while drilling using an antenna with a joint-coil structure |
| 12/25/2013 | CN103470248A Method for configuring transmission channel equalizer of signal telemetry cable |
| 12/25/2013 | CN103470247A Jar/damper capable of realizing signal transmission |
| 12/25/2013 | CN103470246A Impact sound production device |
| 12/25/2013 | CN103470245A Production test system for mechanized horizontal well coiled tubing |
| 12/25/2013 | CN103470243A Drilling machine ground monitoring system |
| 12/25/2013 | CN103470221A Underbalance tubing, no-killing gas lifting, shaft pumping and pump detecting combined method |
| 12/25/2013 | CN102076931B Bottom-hole assembly, and method and system for transmitting data from bottom-hole assembly |
| 12/25/2013 | CN101960087B Systems and methods for well data analysis |
| 12/24/2013 | US8613317 Downhole piston pump and method of operation |
| 12/24/2013 | US8613313 System and method for reservoir characterization |
| 12/22/2013 | CA2820307A1 Determining location information of microseismic events during hydraulic fracturing |
| 12/21/2013 | CA2820101A1 Detector system of slickline irregularities |
| 12/19/2013 | WO2013188174A1 Flowpath identification and characterization |
| 12/19/2013 | WO2013188166A1 Location of downhole lines |
| 12/19/2013 | WO2013188093A2 Application of high intensity focused ultrasound to the displacement of drilling mud |
| 12/19/2013 | WO2013188092A1 Elastography for cement integrity inspection in a wellbore |
| 12/19/2013 | WO2013187915A2 Parallel network simulation apparatus, methods, and systems |
| 12/19/2013 | WO2013187890A1 Apparatus and method for pulse testing a formation |
| 12/19/2013 | WO2013185801A1 Subsea compressor cleaning method wherein the cleaning liquid is retrieved from the multiphase process fluid |
| 12/19/2013 | WO2013185225A1 Microseismic monitoring with fiber-optic noise mapping |
| 12/19/2013 | WO2013052775A3 Virtual endoscopy for downhole oil and gas |
| 12/19/2013 | WO2013049574A3 Electrical submersible pump flow meter |
| 12/19/2013 | WO2013048260A3 Method and apparatus for finding stick-up height of a pipe or finding a joint between two pipes in a drilling environment |
| 12/19/2013 | WO2013044279A3 Method and device for supplying at least one electrical consumer of a drill pipe with an operating voltage |
| 12/19/2013 | WO2012174036A3 Methods and apparatus for determining downhole parameters |
| 12/19/2013 | WO2012164513A3 Self-tightening clamps to secure tools along the exterior diameter of a tubing |
| 12/19/2013 | US20130338926 Formation volumetric evaluation using normalized differential data |
| 12/19/2013 | US20130336612 Integrated fiber optic monitoring system for a wellsite and method of using same |
| 12/19/2013 | US20130335232 Riser wireless communications system |
| 12/19/2013 | US20130334894 Device for transfer of electrical signals and/or electrical energy |
| 12/19/2013 | US20130333946 Closed loop well twinning methods |
| 12/19/2013 | US20130333883 Correlating depth on a tubular in a wellbore |
| 12/19/2013 | US20130333881 Selective extraction of fluids from subsurface wells |
| 12/19/2013 | US20130333880 Method for Obtaining Diagnostics and Control of the Pumping Process of Rod Pumped Oil and Gas Wells and Devices for the Method Execution |
| 12/19/2013 | DE102012105273A1 Pressure-wave generator for data transmission, particularly in drill hole, has electric pressure-wave generator for electrical generation of pressure wave free from flow cross-sectional change of drilling assembly |
| 12/19/2013 | CA2876583A1 Parallel network simulation apparatus, methods, and systems |
| 12/19/2013 | CA2876328A1 Subsea compressor cleaning method wherein the cleaning liquid is retrieved from the multiphase process fluid |
| 12/19/2013 | CA2876161A1 Apparatus and method for pulse testing a formation |
| 12/19/2013 | CA2875719A1 Microseismic monitoring with fiber-optic noise mapping |
| 12/18/2013 | EP2674738A1 Strain sensor, manufacturing method and system |
| 12/18/2013 | EP2674568A1 Monitoring environmental conditions of an underwater installation |
| 12/18/2013 | EP2673468A2 Flow activated sensor assembly |
| 12/18/2013 | EP2673466A2 Well testing and production apparatus and method |
| 12/18/2013 | EP2673452A2 Integrated reaming and measurement system and related methods of use |
| 12/18/2013 | EP2537051B1 Apparatus and methods for providing information about one or more subterranean variables |
| 12/18/2013 | EP2453107B1 Navigation system |
| 12/18/2013 | CN203347788U Probe for logging-while drilling well and with sound insulating structure |
| 12/18/2013 | CN203347787U Ground control system of downhole instrument of drilling fluid wireless logging-while-drilling tool |
| 12/18/2013 | CN203347786U Air-tight seal detection device of well head oil casing pipe |
| 12/18/2013 | CN203347785U D4CG four-arm independent hydraulic well-calipering apparatus |