Evaluation method for unconventional reservoir volume transformation multi-pore media productivity contribution
A technology of volume reconstruction and porous media, which is applied in earthwork drilling, special data processing applications, instruments, etc., can solve the problem of quantitatively describing and evaluating the productivity composition of oil wells, and the quantitative description of the productivity contribution of multiple porous media systems. Reveal the contribution degree of multi-porous media system and other issues
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[0035] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0036] A method for evaluating the productivity contribution of multi-porous media through volume modification of unconventional reservoirs, comprising the following steps:
[0037] Step 1: Establishing a fluid-solid coupling mechanical model of multi-porous media in unconventional reservoirs. Based on the principle of effective stress and the flow characteristics of the reformed area, a fluid-solid coupling mathematical model of rock-soil deformation field (stress field) and fluid flow field (seepage field) in unconventional reservoirs is established, in which: the rock-soil deformation mathematical model comprehensively considers the pore matrix- The multi-scale medium deformation characteristics of natural fractures and artificial fractures, the seepage mathematical model considers the matrix system with threshold pressure, the natural fracture system c...
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