| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 11/24/2010 | CN201650268U Acoustic receiving device for downhole wireless data transmission of coiled tubing operation |
| 11/24/2010 | CN201650267U Simple underground temperature measurement device |
| 11/24/2010 | CN201650266U Measuring device for guide hole tilt angle of inverse well drill |
| 11/24/2010 | CN201650265U High altitude junction pole device |
| 11/24/2010 | CN201650264U Oil well liquid-producing measuring device |
| 11/24/2010 | CN201650263U Automatic recorder of fully-mechanized working face advancing distance |
| 11/24/2010 | CN201650211U Multifunctional cross |
| 11/24/2010 | CN201650198U Gas well pressure-dividing stratifying test process pipe column |
| 11/24/2010 | CN1693896B Method for determining properties of formation fluids |
| 11/24/2010 | CN101892837A Formation factor determining method and oil saturation determining method |
| 11/24/2010 | CN101892835A Combined telescoping ram for logging instrument |
| 11/24/2010 | CN101892834A Pressure balance type tank in formation pressure tester-during-drilling tool |
| 11/24/2010 | CN101892833A Pressure monitoring method for use in vertical well wall small-diameter open hole horizontal well drilling of oil-water wells |
| 11/24/2010 | CN101892832A Angle fixer |
| 11/24/2010 | CN101892831A Method for measuring displacement efficiency of cement slurry by using temperature sensing device |
| 11/24/2010 | CN101892830A Deep ground stress measurement while drilling (MWD) system |
| 11/23/2010 | US7840394 Method for generating a 3D earth model |
| 11/23/2010 | US7839719 Fluid erosion protection washer for rotating shaft in MWD tool |
| 11/23/2010 | US7836974 Open hole logging for drilling rigs |
| 11/23/2010 | US7836959 Providing a sensor array |
| 11/23/2010 | US7836949 Method and apparatus for controlling the manufacture of well treatment fluid |
| 11/23/2010 | US7836759 Fluid flow measuring device and method of manufacturing thereof |
| 11/23/2010 | CA2461995C In-situ heavy-oil reservoir evaluation with artificial temperature elevation |
| 11/23/2010 | CA2440558C Method of logging a borehole |
| 11/22/2010 | CA2692196A1 Method and apparatus for initialization of a wellbore survey tool |
| 11/20/2010 | CA2704060A1 Operating method for a porous medium by means of fluid flow modeling |
| 11/18/2010 | WO2010132432A2 Apparatus and method for multi-sensor estimation of a property of an earth formation |
| 11/18/2010 | WO2010132383A2 Compensated directional resistivity measurements |
| 11/18/2010 | WO2010132382A2 Methods for making directional resistivity measurements |
| 11/18/2010 | WO2010132070A1 Acoustic velocity measurements using tilted transducers |
| 11/18/2010 | WO2010132039A1 Acoustic velocity measurements using tilted transducers |
| 11/18/2010 | WO2010131978A1 Method for sampling and analysis of production from a subsea well for measuring salinity of produced water and also volumetric ratio between liquid fractions |
| 11/18/2010 | WO2010131113A2 System and method for performing wellsite containment operations |
| 11/18/2010 | WO2010088339A3 Hole enlargement drilling device and methods for using same |
| 11/18/2010 | US20100292927 Method and system of determining a value indicative of gas saturation of a formation |
| 11/18/2010 | US20100290313 Pulse stimulation tool and method of use |
| 11/18/2010 | US20100289495 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 11/18/2010 | US20100288708 Viscosity control and filtration of well fluids |
| 11/18/2010 | US20100288510 Object manoeuvring apparatus |
| 11/18/2010 | US20100288493 Cable suspended pumping system |
| 11/18/2010 | US20100288492 Intelligent Debris Removal Tool |
| 11/18/2010 | US20100288491 Subterranean Tubular Cutter with Depth of Cut Feature |
| 11/18/2010 | US20100288490 Method for determining filtration properties of rocks |
| 11/17/2010 | EP2250343A2 Borehole imaging and orientation of downhole tools |
| 11/17/2010 | EP2250342A2 Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging |
| 11/17/2010 | CN201638680U Logging tool coil winding device |
| 11/17/2010 | CN201635733U Multifunctional true tri-axial stress coal core clamp holder |
| 11/17/2010 | CN201635732U Downhole pressure/temperature data measurement instrument |
| 11/17/2010 | CN201635731U Internal and external pressure nitrogen and casing gas integrated generating device |
| 11/17/2010 | CN201635730U Infrasonic wave generator for oil wall liquid test |
| 11/17/2010 | CN201635729U Liquid level tester |
| 11/17/2010 | CN201635728U Two-section gyroscope deviational survey probe |
| 11/17/2010 | CN201635727U Underground construction monitor for bottom hole wireless data transmission in continuous coiled tubing operation |
| 11/17/2010 | CN201635726U 68-core high-temperature high-pressure plug |
| 11/17/2010 | CN201635725U Horizontal well logging traction equipment utilizing sleeve with variable diameter |
| 11/17/2010 | CN201635724U Thickened oil well pressure gauge protective device |
| 11/17/2010 | CN201635723U Double-probe automatic flow measuring and adjusting instrument for water injection well |
| 11/17/2010 | CN201635722U Single-well three-phase automatic metering device of oil field |
| 11/17/2010 | CN201635721U Multifunctional coalbed drilling fluid dynamic pollution assessment equipment |
| 11/17/2010 | CN201635720U Bearing and sealing connection structure of instrument |
| 11/17/2010 | CN201635719U Downhole instrument pressure equalizer |
| 11/17/2010 | CN201635718U Stratified flow pressure and flow instrument |
| 11/17/2010 | CN201635717U Portable disassembly auxiliary frame for rod-shaped instrument |
| 11/17/2010 | CN201635703U Sleeve pipe pressure test plugging device |
| 11/17/2010 | CN201635670U Synchronous straight-edge variable-diameter centralizer |
| 11/17/2010 | CN101886542A Oil string thread and sealing face damage acoustic detection method and detection device |
| 11/17/2010 | CN101886541A Opposed steering large-power signal source system for long-distance large-caliber oil-gas pipeline |
| 11/17/2010 | CN101886540A Lateral multi-lens composite imaging video well-logging device |
| 11/17/2010 | CN101886519A Anchor rod drilling machine capable of monitoring working state of drill hole, and monitoring device thereof |
| 11/16/2010 | US7832501 Measurement ahead of the drilling bit by analysis of formation cuttings using ultraviolet light to detect the presence of oil or gas |
| 11/16/2010 | US7832500 Wellbore drilling method |
| 11/16/2010 | CA2509585C Control method for downhole steering tool |
| 11/16/2010 | CA2327373C Method and system for calculating pressure losses taking thermal effects into account |
| 11/14/2010 | CA2703514A1 Production optimization for oilfields using a mixed-integer nonlinear programming model |
| 11/12/2010 | CA2694551A1 Quality measure for a data context service |
| 11/11/2010 | WO2010129780A2 Directional resistivity imaging using harmonic representations |
| 11/11/2010 | WO2010129677A2 Apparatus and method for predicting properties of earth formations |
| 11/11/2010 | WO2010129603A2 Multi-phase fluid measurement apparatus and method |
| 11/11/2010 | WO2010129526A2 Methods and apparatuses for measuring drill bit conditions |
| 11/11/2010 | WO2010129297A2 Measuring the phase of received signals |
| 11/11/2010 | WO2010129280A2 Petrophysics-guided processing of lwd acoustic data |
| 11/11/2010 | WO2010129173A2 A method and apparatus for nmr measurements in small boreholes and in underbalanced drilling |
| 11/11/2010 | WO2010129169A2 Standoff-independent resistivity sensor system |
| 11/11/2010 | WO2010128943A1 Method, system, use of the system and reinforcement member for rock reinforcement |
| 11/11/2010 | WO2010127802A1 An electronic apparatus of a downhole tool |
| 11/11/2010 | WO2010096346A3 Drilling scorecard |
| 11/11/2010 | WO2010091348A3 Downhole apparatus with a wireless data communication device between rotating and non-rotating members |
| 11/11/2010 | WO2010083386A3 Evanescent wave downhole fiber optic spectrometer |
| 11/11/2010 | US20100286916 Directional resistivity imaging using harmonic representations |
| 11/11/2010 | US20100286800 Tractor communication/control and select fire perforating switch simulations |
| 11/11/2010 | US20100283788 Visualization system for a downhole tool |
| 11/11/2010 | US20100282512 System and method for determining movement of a drilling component in a wellbore |
| 11/11/2010 | US20100282511 Wired Smart Reamer |
| 11/11/2010 | US20100282510 Methods and apparatuses for measuring drill bit conditions |
| 11/11/2010 | US20100282508 Identifying a trajectory for drilling a well cross reference to related application |
| 11/11/2010 | US20100282461 Indicator and method |
| 11/11/2010 | CA2761021A1 Method, system, use of the system and reinforcement member for rock reinforcement |
| 11/11/2010 | CA2760930A1 Multi-phase fluid measurement apparatus and method |
| 11/10/2010 | EP2248994A2 Logging tool having shielded triaxial antennas |
| 11/10/2010 | EP2248993A1 An electronic apparatus of a downhole tool |