Class / Patent application number | Description | Number of patent applications / Date published |
324376000 | OF SUBSURFACE CORE SAMPLE | 8 |
20110187375 | MEASURING DEVICE OF THE ELECTRIC PROPERTIES OF SOLID OR LIQUID GEOLOGICAL SAMPLES - The present invention relates to a measuring device ( | 08-04-2011 |
20130002258 | DEVICE FOR DIELECTRIC PERMITTIVITY AND RESISTIVITY HIGH TEMPERATURE MEASUREMENT OF ROCK SAMPLES - Systems and methods are described for determining dielectric permittivity for core plugs extracted from the field or cores re-saturated with various fluids. The relative dielectric constant of reservoir core plugs is measured in controlled condition of temperature, pressure and fluid saturation within a confined cell. Four-points resistivity measurements of the rock sample in the confined cell is also provided under the controlled temperature, pressure and fluid saturation conditions. | 01-03-2013 |
20130147489 | IDENTIFICATION OF ELEMENTAL MERCURY IN THE SUBSURFACE - An apparatus and process is provided for detecting elemental mercury in soil. A sacrificial electrode of aluminum is inserted below ground to a desired location using direct-push/cone-penetrometer based equipment. The insertion process removes any oxides or previously found mercury from the electrode surface. Any mercury present adjacent the electrode can be detected using a voltmeter which indicates the presence or absence of mercury. Upon repositioning the electrode within the soil, a fresh surface of the aluminum electrode is created allowing additional new measurements. | 06-13-2013 |
20130342211 | Impedance Spectroscopy Measurement Device And Methods For Analysis Of Live Reservoir Fluids And Assessment Of In-Situ Corrosion Of Multiple Alloys - A method for analyzing fluid withdrawn from a subsurface formation includes disposing the withdrawn fluid in a chamber and maintaining the fluid in the chamber substantially at a same temperature and pressure as exists in the subsurface formation. Electric current is passed through the fluid in the chamber using at least one electrode made from a selected metal, the electric current comprising direct current and alternating current of frequency sufficient to determine at least one of (i) resistance of the fluid sample in the chamber directly and (ii) from the direct current determine a polarization resistance of the at least one electrode. | 12-26-2013 |
20140028318 | APPARATUS AND METHOD FOR MEASURING DIELECTIC PERMITIVITY OF CYLINDRICAL SAMPLES - An open ended coaxial probe is disclosed that can be used to measure the dielectric properties of solids. According to some embodiments, the probe is specially designed to make good contact with solids having flat or non-flat surfaces. This design relies on forcing a good contact between the solid surface with both the center conductor and outer conductor of the coaxial probe. A method is also described in which the coaxial probe is used to monitor the dielectric permittivity of cylindrical samples such as rock cores drilled from a well. Also described are methods of using the coaxial probe to provide a continuous log of the dielectric permittivity of a rock core. | 01-30-2014 |
20140184230 | MATRIX PERMITIVITY DETERMINATION (IS10.0565-US-PCT) - A method and system for determining a rock matrix dielectric permittivity. The method and system use a matching liquid with a temperature dependant permittivity. The matching liquid may be used in an automated and/or downhole system for measuring matrix dielectric permittivity of rock formations. | 07-03-2014 |
20160139231 | Petrophysically-Consistent Calibration of Full-Tensor Electromagnetic Induction Tools - A method for calibrating an electromagnetic core analysis tool is disclosed. The method includes disposing a tilted test loop inside of or outside of a tool having more than one antenna. A uniform test pack, a layered test pack, and an effective media test pack are each disposed in the tool. A signal is induced in a receiver antenna in the tool when a second antenna is energized with a known current of a known frequency. The induced signal is measured and a calibration gain and offset is determined. A corrected signal is produced and compared with the determined signal based on a forward model. | 05-19-2016 |
324377000 | For magnetic properties | 1 |
20150123666 | ORE ANALYSIS SYSTEM - Ore analysis system including first and second sensing annular coils ( | 05-07-2015 |