Abstract：Based on the analysis for the geological and geophysical data on the south steep slope in the Biyang Depression, it is believed that looking for lithology reservoirs in this area should be the main objective. Due to poor data quality in this area, the inaccurate imaging of large boundary fault, low signal to noise ratio for deep layers and low trap confirmation degree, the direction of research and studies was determined as follow: (1)optimizing the 3d seismic acquisition factors and geometry designing; (2)conducting pre-stack depth migration, building accurate velocity model and imaging the seismic data correctly; (3)based on sequence stratigraphy, seismic facies technology, coherence data volume stratal attributes, well constrained inversion and other geophysical techniques, the prediction and integrated evaluation for the sand reservoirs on the steep slope were conducted. After applying the technologies and techniques in the exploration and production in the Depression, some traps in different depth and with different types were identified, some wells were drilled in the shallow,middle and deep targets on the steep slope and oil were found there, it is a success for the exploration. It is noticed that in Liyuan area the incremental proven reserves is 8,282,900 Tons, in Lishu area the incremental proven reserves is 3,857,900 Tons.The high precision 3D seismic research and studies played an important role in increasing new proven reserves and maintaining oil production on the steep slope in Biyang Depression.
张永华, 杨道庆, 罗家群, 李连生, 赵雨晴, 季玉摇. 泌阳凹陷陡坡带高精度三维地震攻关研究与效果[J]. 石油地球物理勘探, 2009, 44(增刊1): 110-114.
Zhang Yong-hua, Yang Dao-qing, Luo Jia-qun, Li Lian-sheng, Zhao Yu-qing, Ji Yu-yao. High precision 3D seismic research and studies on steep slope in Biyang Depression. OGP, 2009, 44(增刊1): 110-114.
