Method and device for determining electric pulse fracturing operating parameters

Abstract

The embodiment of the invention provides a method and device for determining electric pulse fracturing operating parameters. The method comprises the following steps: acquiring a rock sample; providing vertical stress, first horizontal stress and second horizontal stress for the rock sample so as to establish a stress environment; controlling a plasma generator to perform multiple groups of electric pulse fracturing experiments on the rock sample in the stress environment according to multiple groups of preset operating parameters so as to acquire multiple groups of experimental result data; determining the electric pulse fracturing operating parameters applicable to an object region according to the multiple groups of experimental result data. Since specific conditions in the object region are considered in the scheme, the vertical stress, the first horizontal stress and the second horizontal stress are simulated to establish an accurate stress environment; moreover, the electric pulse fracturing experiments are performed in the stress environment, so that the electric pulse fracturing operating parameters applicable to the object region are determined. Therefore, the technical problems existing in the conventional method that the determined operating parameters are big in errors and poor in using effects are solved.

Description

technical field [0001] The present application relates to the technical field of oil and gas development, in particular to a method and device for determining working parameters of electric pulse fracturing. Background technique [0002] In the process of developing oil and gas in an oil field, it is often necessary to carry out reservoir transformation in the area where the oil field is located, so as to increase the permeability of the reservoir and improve the efficiency of oil and gas recovery. At present, most of the reservoirs are reconstructed by hydraulic fracturing. However, the fractures obtained by hydraulic fracturing are often relatively single, and the reconstruction effect is not ideal. With the development of technology, electric pulse fracturing, as a new reservoir stimulation method, has gradually attracted people's attention because it can obtain more diverse and complex fracture shapes than hydraulic fracturing. Among them, the above-mentioned electric ...

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Problems solved by technology

[0005] The embodiment of the present application provides a method and device for determining the working parameters of electric pulse fracturing, so as to solve the technical problems of large error and poor use effect of the determined working parameters of electric pulse fracturing existing in the existing method, and to achieve It can accurately simulate the stress environment of the target area, and then accurately determine the technical effect of the working parameters of electric pulse fracturing suitable for the target area

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