Reservoir mining incentive structure and shale gas reservoir mining method

Abstract

The invention provides a reservoir mining incentive structure and a shale gas reservoir mining method, and belongs to the technical field of resource mining. A first vibrator and a second vibrator arearranged on the upper interface and lower interface of a shale gas reservoir by the the mining incentive structure, and the first vibrator and the second vibrator separately release energy into the shale gas reservoir to drive the vibration of the shale gas reservoir. Under the action of acoustic vibration incentive, rock damage occurs, the rock strength decreases, the fracture pressure of the shale reservoir is reduced, and in the later stage of hydraulic fracturing transformation, the cost of hydraulic fracturing is reduced; meanwhile, the change of a stress state of the shale gas reservoiris conducive to the formation of a fracture net in the process of hydraulic fracturing transformation, the volume transformation of the shale gas reservoir is facilitated, the flow of shale gas is accelerated, and the decrease of shale gas reservoir pressure is accelerated; and the desorption of methane is prompted, the acoustic radiation effect can further promote the desorption of the methane,the production of shale gas wells is improved, the mining time of the shale gas reservoir is shortened, and the mining cost is reduced.

Description

technical field [0001] The present application relates to the technical field of resource exploitation, and in particular, relates to an incentive structure for reservoir exploitation and a method for exploiting shale gas reservoirs. Background technique [0002] Shale gas refers to unconventional natural gas that occurs in organic-rich shale-based reservoir rock series, mainly in free and adsorbed reservoirs, and very few in dissolved state. In related technologies, fracturing technology has become the development direction of shale gas reservoir exploitation. Since shale gas reservoirs are usually buried deep, generally at a depth of 3,000 to 6,000 meters, the technical parameters of fracturing technology are required to be relatively high. , leading to high cost and low benefit of shale gas exploitation. Contents of the invention [0003] In view of this, the present application provides an incentive structure for reservoir mining, aiming at improving the problems of h...

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Problems solved by technology

[0003] In view of this, this application provides an incentive structure for reservoir mining, aiming to improve the problem of high cost and low benefit of reservoir mining

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