岩石物理试验分析在地震响应研究中的应用——以AMH地区卡洛夫-牛津阶碳酸盐岩生物礁储层为例

Application of Rock Physical Experimental Study in Seismic Response Analysis——An Example from Callovian-Oxfordian Stage Carbonate Reef Reservoir in AMH Aera

土库曼斯坦AMH地区生物礁特征为点礁,孔洞型和孔隙型主要发育于礁灰岩中。研究点礁在地震剖面上的响应尤为重要。通过岩石物理试验分析岩样的密度、孔隙度和渗透率与纵、横波速度之间的相关关系,分析储层的测井响应特征,开展基于二维地质模型波动方程正演、储层流体替换研究工作,寻找生物礁储层的地震响应特征。通过试验验证了速度模型的可靠性,有效地模拟了生物礁储层与非储层的地震响应特征,为储层预测提供了重要的理论依据。

The type of bio-reefs in AMH Area was a type of patch reef and the type of reservoir was vuggy and pore,which was mainly distributed in the reef limestone.It was very important to study the response of patch reef in seismic profile.By using rock physical property test,the relationships between sample density,porosity and permeability and the velocity of P-wave and S-wave were analyzed,the reservoir response characteristics were also analyzed.The research on wave equation forward modeling based on 2D geologic model and reservoir fluid replacement were carried out to find out the characteristics in seismic response of reef reservoir.The results indicate that the velocity model is reliable,it is used to effectively analogue the seismic response characteristics of reef reservoirs and non-reservoirs,it provides an important theoretical basis for reservoir prediction.