辽河西斜坡鸳鸯沟地区岩性油气藏研究

辽河西斜坡鸳鸯沟地区构造油气藏勘探难度日益增大，岩性油气藏逐渐成为研究重点。以层序地层学研究为基础，依据层序、古地貌控砂理论，利用地震属性分析技术和地震反演技术，寻找砂体发育区，对鸳鸯沟地区岩性油气藏进行研究。研究表明，鸳鸯沟地区砂体主要受古地貌控制，砂体为河道多期叠置、厚度大。储集体为扇三角洲，发育3 个次生孔隙发育带，物性较好，有利于岩性油气藏的形成。

Study on lithologic reservoirs in Yuanyanggou area of Liaohe Depression

With the difficulty increasing of the structural reservoir exploration, lithologic reservoir s become the emphasis of the exploration in Yuanyanggou area of Liaohe Depression. Based on the sequence stratigraphy researches and the theory of sequence and paleogeomorphology controlling sand bodies, the lithologic reservoirs in Yuanyanggou area are studied by using seismic attributes analysis and seismic inversion techniques. The results show that the sand bodies are mainly controlled by paleogeomorphology, the favorable reservoir is fan delta that develops three secondary pore belts with well properties ,which is advantageous to the forming of lithologic reservoirs in Yuanyanggou area of Liaohe Depression.