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从已经研究的结果,鲕滩储层无统一气水界面,具有多气藏多压力系统的分布特征,而且存在低部位产气、高部位产水现象。鉴于鲕滩储层复杂的气水关系,本文采用叠前储层预测技术开展储层的含流体性质探索性研究。与叠后数据相比,叠前地震数据包含更多的与岩性、流体有关的属性参数,这些参数主要有泊松比属性、梯度、截距等,因此可通过对叠前地震属性进行分析,优选能够反映储层含气性的敏感属性,从而对储层的含气性进行预测。
From the results of the previous studies, there is no uniform gas-water interface in oolitic beach reservoirs, which has the distributional characteristics of multi-gas reservoir multi-pressure system and low gas production and high water production. In view of the complicated gas-water relationship of oolitic beach reservoirs, this paper uses prestack reservoir prediction technology to carry out exploration of fluid-bearing properties of reservoirs. Compared with the poststack data, the prestack seismic data contains more lithologic and fluid-related attribute parameters. These parameters mainly include Poisson’s ratio, gradient, intercept, etc. Therefore, the pre-stack seismic attributes can be analyzed , It is preferable to be able to reflect the gas sensitive properties of the reservoir to predict the gas content of the reservoir.