Abstract: A system and method for determining an efficiency of gas extraction. A chamber allows inflow and outflow of the drilling fluid. An amount of gas extracted from a drilling fluid flowing through the chamber at a constant rate during a dynamic process is measured. A dissolution curve is obtained indicative of a gas remaining in the chamber after the dynamic process. An amount drawn from the chamber during a static process subsequent to the dynamic process is measured. An amount of gas from the drilling fluid during the static process is determined from a difference between the amount of gas drawn from the chamber during the static process and an amount of gas indicated by the dissolution curve. The gas extraction efficiency is determined from a ratio of the amount of gas extracted during the static process and the amount of gas extracted during the dynamic process.

Abstract: A system and method for determining an efficiency of gas extraction. A chamber allows inflow and outflow of the drilling fluid. An amount of gas extracted from a drilling fluid flowing through the chamber at a constant rate during a dynamic process is measured. A dissolution curve is obtained indicative of a gas remaining in the chamber after the dynamic process. An amount drawn from the chamber during a static process subsequent to the dynamic process is measured. An amount of gas from the drilling fluid during the static process is determined from a difference between the amount of gas drawn from the chamber during the static process and an amount of gas indicated by the dissolution curve. The gas extraction efficiency is determined from a ratio of the amount of gas extracted during the static process and the amount of gas extracted during the dynamic process.

Abstract: In one aspect, a method for determining amount of selected gas extracted from a drilling fluid during drilling of a wellbore and total amount of gas present in such fluid is disclosed, that in one embodiment may include; flowing the drilling fluid through a gas trap at a constant flow rate; extracting the selected gas released from the drilling fluid flowing through gas trap and determining therefrom the amount of the extracted gas from the drilling fluid; trapping a constant volume of the drilling fluid in the gas trap; extracting the selected gas released from the constant volume and determining therefrom the total amount of the selected gas present in the drilling during drilling of the wellbore. The method further includes determining the efficiency of the gas extraction process from the amount of the selected gas extracted from the fluid flowing through the gas tap and the total amount of the gas in the constant volume.

Abstract: A method for measuring chemical species deposition in a well, flow line, or processing equipment includes monitoring a resonator sensor in a well, flow line, or processing equipment having a fluid flowing therethrough, where the resonator sensor can be a torsional resonator or a symmetrical sensor, and the method also includes detecting a change in resonance of the resonator sensor indicating the deposition of a chemical species on the resonator sensor. The resonator sensor can also measure the amount of chemical species deposited. The fluid may be an organic and/or aqueous fluid that comprises petroleum and/or produced water and the deposition chemical species include, but are not necessarily limited to, asphaltenes, wax, scale, gas hydrates, naphthenic acid salts, and combinations thereof.

Abstract: In one aspect, a method for determining amount of selected gas extracted from a drilling fluid during drilling of a wellbore and total amount of gas present in such fluid is disclosed, that in one embodiment may include; flowing the drilling fluid through a gas trap at a constant flow rate; extracting the selected gas released from the drilling fluid flowing through gas trap and determining therefrom the amount of the extracted gas from the drilling fluid; trapping a constant volume of the drilling fluid in the gas trap; extracting the selected gas released from the constant volume and determining therefrom the total amount of the selected gas present in the drilling during drilling of the wellbore. The method further includes determining the efficiency of the gas extraction process from the amount of the selected gas extracted from the fluid flowing through the gas tap and the total amount of the gas in the constant volume.

Abstract: Systems, devices and methods for determining a parameter of interest of a well fluid relating to a well intersecting a subterranean formation using resonant vibration. The apparatus may include a resonator assembly. The resonator assembly may comprise a plurality of resonant tines structurally coupled to behave as a single resonator. At least one resonant tine of the plurality of resonant tines may include a soft magnetic tine head comprising soft magnetic material uncontained by a supporting surface. Each corresponding tine of the plurality of resonant tines may be formed by at least the resonant tine head and a tine shaft. Each corresponding tine may have a cross section perpendicular to a longitudinal axis of the corresponding tine, the cross section including a tine head, where the cross section has a substantially continuous material composition. Each tine shaft may terminate at the tine head.

Abstract: Systems, devices and methods for determining a parameter of interest of a well fluid relating to a well intersecting a subterranean formation using resonant vibration. The apparatus may include a resonator assembly. The resonator assembly may comprise a plurality of resonant tines structurally coupled to behave as a single resonator. At least one resonant tine of the plurality of resonant tines may include a soft magnetic tine head comprising soft magnetic material uncontained by a supporting surface. Each corresponding tine of the plurality of resonant tines may be formed by at least the resonant tine head and a tine shaft. Each corresponding tine may have a cross section perpendicular to a longitudinal axis of the corresponding tine, the cross section including a tine head, where the cross section has a substantially continuous material composition. Each tine shaft may terminate at the tine head.

Abstract: An apparatus for generating electrical energy in downhole tool is disclosed. In one exemplary embodiment, such apparatus includes a tubular configured to flow a fluid within the tubular and an energy conversion device at a selected location inside the tubular, wherein the energy conversion device comprises an active material configured to convert received pressure pulses in the fluid into electrical energy.

Abstract: An apparatus for generating electrical energy in downhole tool is disclosed. In one exemplary embodiment, such apparatus includes a tubular configured to flow a fluid within the tubular and an energy conversion device at a selected location inside the tubular, wherein the energy conversion device comprises an active material configured to convert received pressure pulses in the fluid into electrical energy.