Production increasing method for shale oil/gas reservoir

Abstract

The invention relates to a production increasing method for a shale oil / gas reservoir. The production increasing method for the shale oil / gas reservoir comprises the steps that firstly, exploitation horizontal wells and a microwave radiation horizontal well extending in the same direction with the exploitation horizontal wells are arranged; secondly, staged fracturing is conducted on the exploitation horizontal wells, volume reformation is conducted on the shale oil / gas reservoir, and a fracturing propping agent with the microwave absorbing capacity is adopted in fracturing fluid; thirdly, microwave emitters are installed in the microwave radiation horizontal well at intervals and used for radiating microwave to the fracturing reformation area of the reservoir; fourthly, exploitation is conducted, and a microwave generator is started at the same time. According to the production increasing method for the shale oil / gas reservoir, microwave radiation is utilized to conduct in-situ heating on the shale oil / gas reservoir, organic matter in the shale reservoir generates pyrolysis to generate hydrocarbon matter to a certain extent, desorption of natural gas and crude oil disengagement from the solid surface in the shale are promoted, the viscosity of the gas and the crude oil is lowered, the flow speed of the gas and the crude oil is increased, the penetration rate of the reservoir is further improved, development of the shale oil / gas is accelerated, the recovery ratio is improved, and the exploitation cost is lowered.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a production stimulation method suitable for shale oil / gas reservoirs. Background technique [0002] With the adjustment of the energy structure and the increasingly prominent environmental problems, the world has increased investment in hard-to-exploit energy, and unconventional oil and gas resources, especially shale oil / gas resources, which are popular in the world today, have received more and more attention from countries. However, shale oil / gas reservoir rocks are characterized by tightness, low porosity, and low permeability. Even if horizontal well technology and staged multi-stage fracturing technology are used in the development process, the production of shale oil / gas resources is still low, and Accompanied by higher industrial costs. Contents of the invention [0003] The present invention aims to provide a production stimulation method suitable fo...

AI Technical Summary

Problems solved by technology

However, shale oil / gas reservoir rocks are characterized by tightness, low porosity, and low permeability. Even if horizontal well technology and staged multi-stage fracturing technology are used in the development process, the production of shale oil / gas resources is still low, and with high industrial costs

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