| Patents for G01V 11 - Prospecting or detecting by methods combining techniques covered by two or more of main groups (3,215) |
|---|
| 05/21/1985 | US4517836 Method for determining oil saturation in a subsurface formation |
| 05/15/1985 | EP0141510A2 Method for determining oil saturation in a subsurface formation |
| 04/17/1985 | EP0137724A2 Simultaneous digitizing apparatus for an acoustic tool |
| 04/09/1985 | CA1185350A1 Method and apparatus for obtaining a display of a characteristic of the periphery of a borehole |
| 03/19/1985 | US4506219 Borehole tool outrigger arm displacement control mechanism |
| 02/26/1985 | US4502121 Machine method for determining the presence and location of hydrocarbon deposits within a subsurface earth formation |
| 02/13/1985 | EP0133086A1 Well probe anchoring device with expansible pivoting arms |
| 01/22/1985 | US4495604 Machine method for determining the presence and location of hydrocarbon deposits within a subsurface earth formation |
| 11/27/1984 | US4484470 Method and apparatus for determining characteristics of clay-bearing formations |
| 10/30/1984 | CA1176972A1 Logging method and apparatus using a sonde equipped with measuring pads |
| 08/28/1984 | US4467642 Method for identifying complex lithologies in a subsurface formation |
| 08/14/1984 | US4464930 Method for identifying complex lithologies in a subsurface formation |
| 06/27/1984 | EP0112189A2 Method and device for coupling a seismic detector to a bore hole wall |
| 06/26/1984 | US4456983 System and method for visual display of well logging data |
| 05/22/1984 | US4450539 Apparatus for measuring the relative position of a downhole tool in a bore hole |
| 05/10/1984 | WO1984001834A1 Seismic pulse generator for a borehole |
| 05/08/1984 | CA1167154A1 Integrated well logging system and method |
| 04/25/1984 | EP0106058A1 Method and apparatus for determining characteristics of clay-bearing formations |
| 04/03/1984 | US4440020 Well log depth zoning |
| 03/28/1984 | EP0103972A2 Method for identifying complex lithologies in a subsurface formation |
| 03/21/1984 | EP0103508A2 Method and apparatus for obtaining a display of a characteristic of the periphery of a well |
| 03/14/1984 | EP0102875A2 Connector for ceramic hybrid circuits for well-logging tools and method for connecting ceramic hybrid circuits for use in well-logging tools |
| 03/07/1984 | EP0102274A2 Outrigger arm displacement control mechanism and method |
| 03/06/1984 | CA1163324A1 Well logging to determine the nature and extent of mud filtrate penetration |
| 02/21/1984 | US4432143 For use in an earth borehole |
| 02/15/1984 | EP0100708A2 Method and device for seismic signal acquisition in a bore hole |
| 01/31/1984 | US4428422 Device provided with retractable arms for the anchoring of an instrument in a cavity |
| 01/24/1984 | US4427941 Temperature compensated well logging tool |
| 01/17/1984 | US4425966 Borehole centralizer with positively indexable contact arms |
| 01/03/1984 | CA1159944A1 Method and apparatus for acoustic well logging |
| 12/13/1983 | US4419887 Distinguishing true basement from dikes and sills encountered in drilling of a borehole through the earth |
| 10/04/1983 | CA1154869A2 Well logging correlation method and apparatus |
| 10/04/1983 | CA1154868A2 Well logging depth derivation method and apparatus |
| 09/06/1983 | US4403290 Machine method for determining the presence and location of hydrocarbon deposits within a subsurface earth formation |
| 08/30/1983 | CA1153066A1 System and method for well logging |
| 08/09/1983 | US4398272 Computerized truck instrumentation system |
| 08/09/1983 | US4397181 Method for determining fluid saturation in a subsurface formation |
| 07/19/1983 | US4394754 Apparatus for low frequency torsional shear wave logging |
| 07/12/1983 | US4393485 Apparatus for compiling and monitoring subterranean well-test data |
| 06/28/1983 | US4390878 Two receiver noise loggers |
| 06/07/1983 | CA1147825A1 Well logging system and method |
| 04/19/1983 | US4380806 Method and apparatus for shear wave logging |
| 03/29/1983 | CA1143790A1 Digital mineral logging system |
| 03/16/1983 | EP0074317A2 Logging method and apparatus using a probe equipped with measuring pads |
| 03/08/1983 | CA1142647A1 Well logging correlation method and apparatus |
| 01/18/1983 | US4369497 Machine method and apparatus for determining the presence and location of hydrocarbon deposits within a subsurface earth formation |
| 12/28/1982 | US4365668 Side wall clamp for downhole tools |
| 12/28/1982 | CA1138528A1 Well logging system and method |
| 12/21/1982 | CA1138111A1 System and method for well logging |
| 11/02/1982 | US4357535 Apparatus for inspecting hand-held articles and persons carrying same |
| 10/19/1982 | US4355310 Well logging communication system |
| 10/12/1982 | US4353248 Well logging to determine the nature and extent of mud filtrate penetration |
| 09/28/1982 | US4352166 System and method for visual display of well-logging data |
| 09/21/1982 | US4350979 System and method for well-logging |
| 08/31/1982 | US4346593 Well logging correction method and apparatus |
| 07/07/1982 | EP0055634A1 Method of recording a physical characteristic of a borehole casing |
| 07/06/1982 | US4338664 Method of evaluating formations traversed by a borehole |
| 06/24/1982 | WO1982002074A1 Device for pressing geophysical devices against the wall of a bore hole |
| 06/22/1982 | US4335602 Method and apparatus for protecting subsurface electronic assemblies from shock and vibration damage |
| 04/27/1982 | US4327412 Well logging data processing technique |
| 03/16/1982 | US4320470 Method and apparatus for acoustic well logging |
| 03/16/1982 | US4320469 Well logging: depth correlation of logs |
| 03/16/1982 | US4320458 Well log processing technique |
| 01/19/1982 | US4312040 Well log depth aligning |
| 01/12/1982 | US4310887 Verification and calibration of well logs and reconstruction of logs |
| 12/22/1981 | USRE30827 Process and device for the determination of the characteristics of the geological formations traversed by a borehole |
| 11/04/1981 | EP0039108A1 Apparatus for inspecting hand-held articles and persons carrying same |
| 11/03/1981 | US4297879 Well logging correlation method and apparatus |
| 10/06/1981 | US4293309 Hydrocarbon deposits, explosives |
| 09/15/1981 | US4289025 Sonde with rotatable pad for carrying out logging measurements in a borehole |
| 09/08/1981 | CA1108435A1 Method and apparatus for logging inclined earth boreholes using the measured acceleration of the well logging instrument |
| 08/25/1981 | CA1107494A1 Rotating shoe probe for taking measurements in a well |
| 08/04/1981 | US4282523 Method and apparatus for logging inclined earth boreholes |
| 07/28/1981 | CA1106022A1 Well logging communication system |
| 05/13/1981 | EP0028296A2 Arrangement for power-supply and measurement-data transmission from a central station to several measurement posts |
| 01/13/1981 | US4245313 Method and apparatus for determining characteristics of subsurface earth formations |
| 01/06/1981 | US4243099 Selectively-controlled well bore apparatus |
| 12/16/1980 | CA1091797A1 Method and apparatus for deriving compensated measurements in a borehole |
| 12/16/1980 | CA1091471A1 Method and apparatus for logging earth boreholes using self-contained logging instrument |
| 11/25/1980 | US4236113 Electrical well logging tool, having an expandable sleeve, for determining if clay is present in an earth formation |
| 10/14/1980 | US4227404 Digital mineral logging system |
| 07/29/1980 | US4215426 Telemetry and power transmission for enclosed fluid systems |
| 02/19/1980 | US4189705 Well logging system |
| 01/08/1980 | CA1069584A1 Measuring reservoir oil for saturation |
| 01/08/1980 | CA1069432A1 Multiple arm pad instrument for logging highly deviated boreholes |
| 10/16/1979 | US4171031 Well logging instrument guide apparatus |
| 08/07/1979 | CA1060114A1 System for telemetering well logging data |
| 07/24/1979 | US4162400 Fiber optic well logging means and method |
| 07/17/1979 | US4161715 Method and apparatus for measuring the interior dimensions of a hollow body |
| 01/30/1979 | CA1047596A1 Methods and apparatus for recording well logging measurements |
| 12/19/1978 | US4130816 Circumferential acoustical detector |
| 10/17/1978 | US4120353 Device to move density logging tool against well wall |
| 06/27/1978 | US4096752 Oil well logging probe assembly |
| 01/10/1978 | US4068160 Method for detecting subsurface mineral bodies using gravity magnetic and topographic surveys |
| 11/01/1977 | US4056004 Multiple arm pad instrument for logging highly deviated boreholes |
| 10/11/1977 | US4052893 Measuring reservoir oil saturation |
| 09/13/1977 | US4047430 Method and apparatus for logging earth boreholes using self-contained logging instrument |
| 06/14/1977 | US4030064 Methods and apparatus for recording well logging measurements |
| 05/03/1977 | US4021774 Borehole sensor |
| 03/29/1977 | US4015194 Oil well logging device having plural well fluid parameter measuring devices and a single conductor for accommodating both measurement and power signals |