数值模拟技术在生物礁储层研究中的应用——以阿姆河右岸卡洛夫—牛津阶组碳酸盐岩生物礁储层为例

Application of Numerical Simulation to Bioreef Reservoir:An Example from Callovian-Oxfordian Carbonate Bioreef in Amu Darya Right Bank

为研究不同类型生物礁储层的岩石物理性质与地震响应特征的相互关系与可识别性,将生物礁储层的识别和预测从定性解释发展到定量研究,根据阿姆河右岸卡洛夫—牛津阶组生物礁储层的地质特征,利用测井和岩石物理测试资料,分别对生物礁有储层发育及无储层发育模型进行了波动方程数值模拟,结果获得了与实际地震剖面基本一致的模拟记录,也表明生物礁的特殊地质条件使其在地震剖面上出现了地震异常响应。

In this paper,bioreef reservoirs are identified and predicted from qualitative interpretation to quantitative study in order to study a relationship between petrophysical property and seismic response feature of different bioreef reservoirs and to identify them better.In addition,based on geological attributes of Callovian-Oxfordian bioreef reservoir in Amu Darya Right Bank,a wave-equation numerical-simulation is carried out for bioreef reservoir and nonreservoir according to some data from well logging and petrophysical test.Simulation record obtained is roughly consistent with that from actual seismic profile,also indicating that special geological condition of bioreef makes abnormal seismic response appear in seismic profile.