Abstract: In a device and method for measuring a mass flow rate of a fluid, a housing has two hollow pipes communicating with one another and having a fluid inlet and a fluid outlet, an electromagnetic excitation unit excites vibrations in the hollow pipes, two electromagnetic adapters are associated correspondingly with the two pipes and provides signals which are proportional to a speed of vibrations of the pipes of said housing, and an electronic block connected with the electromagnetic excitation unit and with the electromagnetic adapters determines a mass flow rate of a fluid, a correction associated with inclusions in the fluid and constituted by a ratio of a voltage amplitude of the adapters and a voltage amplitude of excitation of vibrations by the electromagnetic excitation unit, and a corrected mass flow rate of the fluid based on the determined mass flow and the determined correction.

Abstract: For increasing productivity of oil, gas and water wells, a horizontal or inclined well is excavated, a plurality of cavities are formed transversely to the direction of elongation of the well so as to provide partitions between them, and hydrocracking is carried out to act on the partitions between the cavities.

Abstract: For increasing productivity of oil, gas and water wells, a horizontal or inclined well is excavated, a plurality of cavities are formed transversely to the direction of elongation of the well so as to provide partitions between them, and hydrocracking is carried out to act on the partitions between the cavities.

Abstract: A single straight tube flowmeter has a body; a tube through which a flow of fluid passes; two systems of excitation of oscillations in two planes which are perpendicular to one another and including adaptor units; a block of processing of information data including a phase shift of the adaptors located in one plane, frequency of oscillations of the tube, and temperatures of the tube and the body and outputting results of measurement of a mass flow rate and density of the fluid; and components for imparting to the tube a rotary motion relative to its neutral immovable position to increase accuracy of measurements by suppressing vibration disturbances.

Abstract: In a device and method for measuring a mass flow rate of a fluid, a housing has two hollow pipes communicating with one another and having a fluid inlet and a fluid outlet, an electromagnetic excitation unit excites vibrations in the hollow pipes, two electromagnetic adapters are associated correspondingly with the two pipes and provides signals which are proportional to a speed of vibrations of the pipes of said housing, and an electronic block connected with the electromagnetic excitation unit and with the electromagnetic adapters determines a mass flow rate of a fluid, a correction associated with inclusions in the fluid and constituted by a ratio of a voltage amplitude of the adapters and a voltage amplitude of excitation of vibrations by the electromagnetic excitation unit, and a corrected mass flow rate of the fluid based on the determined mass flow and the determined correction.

Abstract: A device for separating air and vapor from liquids has a hollow substantially vertical housing, an inlet provided in the housing for introducing a liquid which contains air and vapor, first outlet for withdrawing from the housing the liquid after separation of air and vapor therefrom and located in a lower area of the housing, a second outlet for withdrawing from the housing the air and vapor separated from the liquid and located in an upper area of the housing, and a separating grate located above the first outlet and intensifying the separation of the air and vapor from the liquid.

Abstract: An apparatus for measurement of liquid oil products has a local control unit; a grounding element; an electric pump aggregate; a filter; a gas separator; an electromagnetically operated valve; an indication and control unit; a sensor for sensing temperature of liquid oil product; a mass flow meter located between an outlet of the gas separator and an input of the electromagnetically operated valve and connected with the indication and control block; and a device for determining a water quantity in the oil product connected with the indication and control block.

Abstract: In a method of evaluation of deposits and opening of productive formations in recovery of oil or gas, a previously drilled well is located and investigated to determine at least one first zone which is not productive for oil or gas extraction and at least one second zone which is productive for oil or gas extraction; the at least one first zone which is not productive for oil or gas extraction is skipped, while hydroslotting is performed in the at least one second zone by making a plurality of slots and thereby producing unloaded regions so as to provide again a flow of oil or gas in the previously drilled well which was not in operation.