Shale oil and gas microwave resonance impact collaborative production-increasing technical method

Abstract

The embodiment of the invention discloses a shale oil and gas microwave resonance impact collaborative production-increasing technical method. The shale oil and gas microwave resonance impact collaborative production-increasing technical method comprises the following steps that S100, a shale bed is subjected to inherent frequency detection and vibration and temperature detection; S200, an electric pulse excitation source is controlled to emit a high-energy pulse wave band to be subjected to harmonic resonance with shale, and thus the shale cracks to form a crack; S300, the microwave frequency, the penetration depth and the microwave absorbent delivery quantity are determined; S400, variable-power electromagnetic waves are superimposed on the basis of high-energy electric pulse waves, an oil reservoir is heated through a variable-power high-frequency medium polarization heat-generation mechanism, the viscosity of shale oil and the plasticity and toughness of the reservoir are lowered,and the reservoir brittle rupture tendency is enlarged; and S500, the reservoir is improved, and collaborative production-increasing is realized. The advantages of an electromagnetic wave heating production-increasing technology and a frequency spectrum resonance impact production-increasing technology are combined, the high-energy impact waves with the inherent frequency of the target reservoir are superimposed on the electromagnetic wave heating basis, and the characteristics of low pollution, low energy consumption and the like are realized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of unconventional shale oil and gas, and specifically relate to a method for improving the physical properties of shale oil and gas reservoirs by combining electromagnetic heating stimulation technology and spectrum resonance shock stimulation technology. Background technique [0002] my country is rich in shale oil and gas resources, with technically recoverable resources of 4.352 billion tons, ranking third in the world. Due to the late start of exploration and development, the organic-rich shale in continental basins has high clay content, tight reservoirs, and poor reservoir physical properties. Shale oil and gas reservoirs are basically ultra-low porosity and ultra-low permeability reservoirs, and mining is difficult. Therefore, At present, my country's shale oil and gas is still in the early stage of exploration and development, and shale gas has only made breakthroughs in some...

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Problems solved by technology

[0006] Although high-frequency electromagnetic waves alone can heat the oil reservoir and play a certain synergistic effect on the development of shale oil, but due to the great influence of the dielectric properties of the material, its effect is limited

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