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Registration Number

0216U010111, 0115U001177 , R & D reports

Title

Study of amplitude-frequency characteristics of compression waves generated by an electric discharge in a fluid for assessing their possible application in new fields

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Head

Shvets Ivan Sofronovich,

Registration Date

29-11-2016

Organization

Institute of Pulse Research and Engineering

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Object of the research comprises the pressure waves generated by electrical discharge in the bottom-hole zone of oil wells. The purpose of the research is development of methods and devices for measuring pressure pulses in an electric discharge in a closed volume, and their spectral analysis to evaluate opportunities to expand the use of submersible electrodischarge devices. Research methods are experimental and theoretical studies of electric and hydrodynamic processes in the near-bottom hole area, determining parameters of the pressure waves in rocks, spectral analysis of pressure pulses, the statistical processing of the results. The authors studied the amplitude-frequency characteristics of the compression waves generated by electrical discharge in a liquid in a closed volume under hydrostatic pressure up to 20 MPa. The result of the work was the mathematical model with the use of "spectral approach", which can be used for determination of the pressure waves in rocks at a given distance from the discharge. Comparison of amplitudes of pressure waves generated in the modes with the use of open and closed electrode systems at high hydrostatic pressures showed the feasibility of the scheme with a closed electrode system. This leads to a reduction of losses on the formation of the discharge and improves the effectiveness of its impact on the reservoir rock. The research results will be used in the improvement of existing and creation of new submersible electrodischarge devices with a view to their application in new areas.

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Жекул В.Г.
Коваленко О.О.
Макаренко В.
Мерхель Ю.І.
Поклонов С.Г.
Смірнов О.П.
Тафтай Е.І.

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2020-04-02