【摘要】 为了研究松南地区陆相砂泥岩薄互层储层岩石物性横向变化、微构造等对油气聚集的影响和探索利用高分辨率井间地震技术直接指示油气分布的可能性，开展了井间地震及地面小三维地震、VSP、测井等立体地震观测．使用了自行研制的井中炸药震源和常规地震记录仪器．采用层析成像方法、反射资料叠前偏移成像方法等对采集到的资料进行研究，得到了不同分辨率的地下构造和岩石物性信息，展示出不同方法技术在分辨薄储层能力上的差异．高分辨率的井间地震成果较好地实现了井间地层对比，查清了两井间储层横向变化和油气分布情况．层析速度与构造信息等的综合应用解释了两井油气产能差异的原因，建立了油气地质模型．所得成果显示出井间地震技术在油气开发中的潜力．更多还原

【Abstract】 A comprehensive research including crosswell seismic, surface 3D seismic, VSP and logging was carried out to study the effects of lateral changes of rock physical properties and micro-structures to oil / gas accumulation and to try to find out the possibility of direct indication of oil / gas by high resolution crosswell seismic technique for continental sand / shale interbedded thin reserves in Songnan area.Home-made borehole dynamite seismic sources and conventional equipment were used in the collection of field data. Tomographic inversion and prestack depth migration methods were used to the data set and images at different levels of resolution for subsurface structures and physical parameters were presented, which demonstrated different capabilities of different methods to dishnguish thin layers. High resolution crosswell seismic results achieved interwell stratigraphic correlation and made a thorough inveshgation of the lateral variations of reserves and the distribution. of oil /gas. Comprehensive application of tomographic velocity and structural information gave the explanation for output differences of the two wells and an oil / gas geological model between the two wells. The achievements of the study exhibited potential use of crosswell seismic method in oil / gas recovery.更多还原