Abstract: The present disclosure is directed toward systems and methods for measuring electric current in a multi-wire cable, as well as the apparent and real power associated with an electrical load connected to the cable. A probe comprising an array of small form-factor, high-speed magnetometers is operatively coupled with the cable such that the magnetometers partially surround the cable. Each magnetometer detects the composite magnetic field at its location, and this plurality of measurements is used to generate a magnetic-field map. The contributions of the current flow in each wire are identified by deconvolving the magnetic-field map, enabling their locations to be determined and monitoring of the current and power flow. A sensor included in the probe is used to determine the phase of the applied voltage. The phase difference between the voltage and current is then used to determine the real power dissipation of the load.

Abstract: A temperature monitoring system includes a semiconductor member mounted onto the surface of an object having a surface whose temperature is to be monitored. The semiconductor member has a temperature-dependent bandgap with an absorption edge that varies with temperature. A light source is configured to illuminate the semiconductor member with monochromatic light. The monochromatic light has a wavelength equal to an absorption edge wavelength that is associated with the absorption edge when the semiconductor member is at a specified temperature. A detector is configured to receive light reflected from the semiconductor member when illuminated with the monochromatic light such that a surface temperature of the object is at the specified temperature when a change in an amount of reflected light that is received indicates that the wavelength of the monochromatic light is equal to the absorption edge wavelength at the specified temperature.

Abstract: The invention relates to a method for recovering organic molecules (10) from a complex matrix (20) said method (100) comprising the steps of: Providing (110) the complex matrix (20); Contacting (120) the complex matrix (20) with biogenic nanoparticles (30), for an adsorption of the organic molecules (10) on biogenic nanoparticles (30); Separating (140) biogenic nanoparticles enriched (35) with the organic molecules (10) from a depleted complex matrix (22); and Using (150) the organic molecules (10) that were adsorbed to the biogenic nanoparticles (30) in a chemical process or in a chemical device.

Abstract: In various aspects, the present disclosure provides an example autonomous microsystem for immersion into a fluid. The autonomous microsystem includes electronics, a power source, and a packaging system that surrounds the electronics and the power source. The electronics can be configured to sense and record one or more environmental conditions. The packaging system may include a deformable shell that defines an internal space and a plurality of filler particles disposed in the internal space and configured to control a density of the autonomous microsystem in relation to the fluid. The filler particles may comprise a low-density material having a bulk density greater than or equal to about 100 kg/m3 and less than or equal to about 1,000 kg/m3 and have a packing density greater than or equal to about 1011/m3 and less than or equal to about 1021/m3.

Abstract: A nanofluid preparation method (100) from biogenic material is provided. The method includes the steps of: (a) Treating (120) biogenic material with a strong acid to remove metal impurities; (b) Heating (140) the treated biogenic material at a first temperature between 150° C. and 500° C.; (c) Heating (150) the treated biogenic material at a second temperature above 600° C. to pyrolyze the treated biogenic material; (d) Grinding (160) the pyrolyzed biogenic material to obtain nanoparticles of biogenic material; and (e) Mixing (180) nanoparticles of biogenic material with an organic solvent to form a nanofluid, said organic solvent including a low polarity solvent. A nanofluid obtainable by the nanofluid preparation method and the use of such a nanofluid for reducing fines migration or enhanced crude oil recovery are also provided. A system for enhanced crude oil recovery from a reservoir well is also provided.

Abstract: The invention relates to a nanofluid preparation method (100) from biogenic material, said method comprising the steps of: Treating (120) biogenic material with a strong acid to remove metal impurities; Heating (140) the treated biogenic material at a first temperature comprised between 150° C. and 500° C.; Heating (150) the treated biogenic material at a second temperature above 600° C. to pyrolyze the treated biogenic material; Grinding (160) the pyrolyzed biogenic material to obtain nanoparticles of biogenic material; and Mixing (180) nanoparticles of biogenic material with an organic solvent to form a nanofluid, said organic solvent comprising a low polarity solvent. The invention also relates to a nanofluid obtainable by the nanofluid preparation method and the use of such a nanofluid for example for reducing fines migration or enhanced crude oil recovery. The invention also relates to a system for enhanced crude oil recovery from a reservoir well.

Abstract: Investigating the permeability and porosity of geological samples is a routine element of geological studies, and is of particular interest in the oil and gas industry. Core-flood experiments are commonly performed on rock samples to measure transport characteristics in the laboratory. This disclosure reports the design and implementation of a high resolution distributed pressure measurement system for core-flood experiments. A series of microfabricated pressure sensors can be embedded in bolts that are housed within the pressurized polymer sheath that encases a rock core. A feedthrough technology has been developed to provide lead transfer between the sensors and system electronics across a 230-bar pressure difference. The system has been successfully benchtop tested with fluids such as synthetic oil and/or gas. Pressure measurements were recorded over a dynamic range of 20 bar with a resolution as small as 0.3 mbar.

Abstract: A method for adjusting, to a pre-determined value, the level of a mineral deposition or corrosion inhibitor injected into a gas or oil well. Using of the time-resolved fluorescence method for detecting and quantifying a mineral deposition or corrosion inhibitor in a fluid from an oil or gas production well.

Abstract: The invention relates to a method for analysing hydrocarbons, comprising: the implementation of a gas chromatography separation according to a first controlled temperature profile, to separate a sample into a plurality of analytes; the detection of at least one of said analytes by measurement of a variation of the resonance frequency of at least one resonator of nano-electromechanical system (NEMS) type covered with a functional layer made to vibrate at the resonance frequency thereof, under the effect of an adsorption or desorption of the analyte by the functional layer, said method being characterised in that the resonator is subjected to a second controlled temperature profile, lower than the first profile.

Abstract: Novel hybrid nanoparticles, useful for inhibiting or slowing down the formation of sulfur deposits or minerals in a well during the extraction of gas or oil. Specifically, the nanoparticles each include (i) a polyorganosiloxane (POS) matrix; and, optionally as a coating over a lanthanide oxide core, (iii) at least one polymeric scale inhibitor during the extraction of gas or oil. The invention also relates to the method for obtaining the nano-inhibitors and the application of same.

Abstract: A method for adjusting, to a pre-determined value, the level of a mineral deposition or corrosion inhibitor injected into a gas or oil well. Using of the time-resolved fluorescence method for detecting and quantifying a mineral deposition or corrosion inhibitor in a fluid from an oil or gas production well.

Abstract: A method for adjusting, to a pre-determined value, the level of a mineral deposition or corrosion inhibitor injected into a gas or oil well. Using of the time-resolved fluorescence method for detecting and quantifying a mineral deposition or corrosion inhibitor in a fluid from an oil or gas production well.

Abstract: A copolymer containing a unit including an optionally neutralized styrene sulphonic acid unit and a unit containing at least one optionally neutralized (poly)carboxylic acid unit or a (poly)amido-amine unit, to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil. It also relates to a method to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil, including the injection of a fluid containing the abovementioned copolymer into a wellbore, a subterranean formation or a gas or oil well.

Abstract: Novel hybrid nanoparticles, useful for inhibiting or slowing down the formation of sulfur deposits or minerals in a well during the extraction of gas or oil. Specifically, the nanoparticles each include (i) a polyorganosiloxane (POS) matrix; and, optionally as a coating over a lanthanide oxide core, (iii) at least one polymeric scale inhibitor during the extraction of gas or oil. The invention also relates to the method for obtaining the nanoinhibitors and the application of same.

Abstract: A method for adjusting, to a pre-determined value, the level of a mineral deposition or corrosion inhibitor injected into a gas or oil well. Using of the time-resolved fluorescence method for detecting and quantifying a mineral deposition or corrosion inhibitor in a fluid from an oil or gas production well.

Abstract: A copolymer containing a unit including an optionally neutralised styrene sulphonic acid unit and a unit containing at least one optionally neutralised (poly)carboxylic acid unit or a (poly)amido-amine unit, to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil. It also relates to a method to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil, including the injection of a fluid containing the abovementioned copolymer into a wellbore, a subterranean formation or a gas or oil well.