CAJ | 학술논문

体积压裂根据岩石脆性会形成不同的裂缝形态，会造成不同的改造体积和增油效果。本研究在实际油田认识基础上，建立了不同裂缝形态的渗流数值模拟模型，并分析了关井压力恢复时不同裂缝形态的压力响应特征。研究结果表明，当体积压裂形成两翼缝时，表现为有限导流的压力响应特征；当形成裂缝网络时，会出现双重介质和复合油藏的压力响应特征，由该特征可以通过试井分析方法判断体积压裂后裂缝形态，从而为体积压裂效果评价提供技术参考。
체적압렬근거암석취성회형성불동적렬봉형태，회조성불동적개조체적화증유효과。본연구재실제유전인식기출상，건립료불동렬봉형태적삼류수치모의모형，병분석료관정압력회복시불동렬봉형태적압력향응특정。연구결과표명，당체적압렬형성량익봉시，표현위유한도류적압력향응특정；당형성렬봉망락시，회출현쌍중개질화복합유장적압력향응특정，유해특정가이통과시정분석방법판단체적압렬후렬봉형태，종이위체적압렬효과평개제공기술삼고。
At present the SRV (Stimulated Reservoir Volume) is a popular method to im-prove oil recovery ,and have great effect in development of shale gas .Based on the rock brit-tleness the different fracture geometry can be stimulated .In this research ,a numerical simu-lation model is set up to simulate the buildup pressure transient characteristics on different fracture geometry .The results show that the pressure transient characteristics of wing frac-ture have the characters of the finite conductivity fracture ,and the pressure transient charac-teristics of fracture network have the characters of the double medium and composite medi-um .