期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：310
期号：3
页码：1-8
DOI：10.1088/1755-1315/310/3/032005
出版社：IOP Publishing
摘要：Based on the finite element theory, the mathematical model of oil-water two-phase flow is established. Applying the mixed element finite element method to numerical simulation studies for complex artificial fracture which after volume fracturing of horizontal well in dense reservoir, using arbitrary triangle elements to describe the formation, line elements to describe the artificial fracture. For the convenience of simulation calculation, the fracture network is processed into two parts of the main fracture and the high permeability stimulated region. The bandwidth of stimulated region is determined by results of the micro seismic monitoring; the permeability is determined by single well history matching. Aiming at the problem of volume fracturing of horizontal well in dense reservoir, in the way of natural energy exploitation, with the single well as the research object, according to different calculation schemes to carry out stimulated reservoir volume(SRV) calculation, to study the influence of the SRV on fracturing effect. Research results show that under the condition of natural energy, when the fracture half-length is unchanged, with the increasing of the transformation segment number, the SRV increases, the cumulative oil production increased. However, the increasing of oil production is smaller gradually, so there is an optimal SRV. Under the given conditions, when the fracture half-length is 240m, horizontal well length is 600m, 800m and 1000m, 1200m, the optimal SRV respectively are 350×104m3、 500×104m3、 600×104m3、 750×104m3。
