Application of seismic—geologic research of progressive exploration and development in Wangji complex fault blocks oil reservoir

As Wangji complex fault blocks oil reservoir was characterized by complex fracture system,multi-sources,poor seismic quality and great difficulties in progressive exploration and development,seismic-geologic research must be combined to improve the success rate of drilling in the area. First of all,carry out fracture system space interpretation and stratigraphic correlation;secondly,further determine fracture interpretation and rationality of oil group boundary based on fine horizon calibration by using seismic-geologic well-tie profile;thirdly,carry out fine structural interpretation of the whole area,make a further study on small fault,small fault-block and small sandbodies distribution in combination with logging,oil testing and dynamic production data,and make clear oil-water relation of different types of wells;finally,carry out comprehensive evaluation of traps and provide drilling targets based on the summary of hydrocarbon distribution and accumulation regularity.The facts prove the method provides guidance for progressive exploration and development and achieves good effect.