东濮凹陷文东深层低渗储层预测研究

Prediction of deep and low permeability reservoirs in Wendong Area of Dongpu Sag

1. 中国科学院地质与地球物理研究所,北京100029;2. 中国石化中原油田分公司勘探开发科学研究院,河南濮阳457001;3. 石油大学,山东东营257061

1. Institute of Geology and Geophysics, Chinese Academe of Sciences, Beijing 100029, China;2. Exploration and Development Science Institute of Zhongyuan Oilfield Company, Puyang 457001, China;3. University of Petroleum, Dongying 257061, China

东濮凹陷文东文200断块沙三中为断块岩性油气藏,油藏埋藏深,储层横向变化快,油层薄,分布很不稳定,岩性变化是制约该区块投入开发的关键因素。利用三维地震资料,在区域沉积背景和沉积相研究基础上,以井资料为约束,采用地震反演方法定量预测储层空间分布,使得地震反演和储层预测直接为编制开发方案服务。

The fault block Wen 200 of the Shasan Formation in Dongpu Sag is a fault lithological reservoir that is characterized by deep buried depth, rapidly lateral variations of reservoir interval, and thin oil layer. Lithology variability governs oilfield development. In this paper, reservoir distribution was predicted by constrained seismic inversion, on the basis of sedimentary facies analysis. The results were used to guide the design of development scheme.