RU2007148254A

RU2007148254A - METHOD OF ELECTRIC HYDROPULSE INFLUENCE IN OIL AND GAS WELLS AND A WELL GENERATOR FOR ITS IMPLEMENTATION

Info

Publication number: RU2007148254A
Application number: RU2007148254/03A
Authority: RU
Original assignee: Белянский Владимир Самуилович (RU); Белянский Владимир Самуилович
Priority date: 2007-12-24
Filing date: 2007-12-24
Publication date: 2009-06-27
Also published as: RU2368765C2

Abstract

1. Способ электрогидроимпульсного воздействия в нефтегазовых скважинах, включающий размещение в рабочей зоне скважины изолированных друг от друга наружного и внутреннего электродов, зазор между которыми заполняют жидкостью и подают электрический ток на один из них, отличающийся тем, что, с целью повышения интенсивности и производительности воздействия, электрический ток подают непрерывно в режиме переменного, пропускают его через жидкость, разогревают электроды, доводят жидкость в зазоре до газообразного состояния, разгоняют газ, выводят его из зазора и одновременно заполняют последний жидкостью. ! 2. Способ по п.1, отличающийся тем, что, с целью управления рабочим процессом, изменяют мощность электрического тока и давление жидкости. ! 3. Скважинный генератор для электрогидроимпульсного воздействия, содержащий металлический корпус в виде трубы с крепежной головкой и соплом, внутренний электрод с профилированной головкой, изолятор для установки последнего по оси корпуса, провод и источник тока, отличающийся тем, что, с целью разогрева рабочей зоны, внутренний электрод снабжен сквозным осевым отверстием, его поверхность образует с корпусом кольцевой канал, радиальная величина которого определяется из условия непробиваемости электрическим напряжением, профилированной головке придают форму конуса, изолятору форму днища, а на крепежной головке установлен штуцер. ! 4. Скважинный генератор по п.3, отличающийся тем, что, с целью увеличения частоты импульсного воздействия, на внутреннем электроде выполнена радиальная перфорация. ! 5. Скважинный генератор по п.3 или 4, отличающийся тем, что, с целью увеличения зоны о�1. The method of electrohydropulse exposure in oil and gas wells, including the placement in the working area of the well of isolated outer and inner electrodes, the gap between which is filled with liquid and supplies electric current to one of them, characterized in that, in order to increase the intensity and productivity of exposure electric current is supplied continuously in the alternating mode, it is passed through a liquid, the electrodes are heated, the liquid in the gap is brought to a gaseous state, the gas is dispersed, emit it from the gap and at the same time filled with liquid last. ! 2. The method according to claim 1, characterized in that, in order to control the working process, change the power of the electric current and the pressure of the liquid. ! 3. A downhole generator for electrohydropulse treatment, comprising a metal casing in the form of a pipe with a mounting head and nozzle, an internal electrode with a shaped head, an insulator for installing the latter along the axis of the casing, a wire and a current source, characterized in that, in order to heat the working area, the inner electrode is provided with a through axial hole, its surface forms an annular channel with the body, the radial value of which is determined from the condition of penetration by electric voltage, profiled the head is shaped like a cone, the insulator is shaped like a bottom, and a fitting is mounted on the mounting head. ! 4. The downhole generator according to claim 3, characterized in that, in order to increase the frequency of the pulse action, radial perforation is performed on the internal electrode. ! 5. The downhole generator according to claim 3 or 4, characterized in that, in order to increase the area of

Claims

1. The method of electrohydropulse exposure in oil and gas wells, including the placement in the working area of the well of isolated outer and inner electrodes, the gap between which is filled with liquid and supplies electric current to one of them, characterized in that, in order to increase the intensity and productivity of exposure electric current is supplied continuously in the alternating mode, it is passed through a liquid, the electrodes are heated, the liquid in the gap is brought to a gaseous state, the gas is dispersed, emit it from the gap and at the same time filled with liquid last.

2. The method according to claim 1, characterized in that, in order to control the working process, change the power of the electric current and the pressure of the liquid.

3. A downhole generator for electrohydropulse treatment, comprising a metal casing in the form of a pipe with a mounting head and nozzle, an internal electrode with a shaped head, an insulator for installing the latter along the axis of the casing, a wire and a current source, characterized in that, in order to heat the working area, the inner electrode is provided with a through axial hole, its surface forms an annular channel with the body, the radial value of which is determined from the condition of penetration by electric voltage, profiled the head is shaped like a cone, the insulator is shaped like a bottom, and a fitting is mounted on the mounting head.

4. The downhole generator according to claim 3, characterized in that, in order to increase the frequency of the pulse action, radial perforation is performed on the internal electrode.

5. The downhole generator according to claim 3 or 4, characterized in that, in order to increase the heating zone, the housing is equipped with a metal bandage with ribs.