Study On The Structure Features And Reservoir Prediction Of Heidimiao Oil Layer In Xinli Area

Xinli area is located in the Xinli structure Western margin of Central depression,southern part of Songliao basin Fuxin uplift zone. According to the current data, the main reservoirs are Heidimiao oil layer and Fuyang oil layer, which are study area in this work. Sanzhao depression and Changling depression surrounding the Xinli area are main oil source of Heidimiao oil layer. The oil transport along east-west fault to target, while corresponding to paleo uplift developed long-time in Xinli area. It is conducive to oil accumulation.This paper mainly contain structure interpretation and reservoir prediction. The structural interpretation is based on fine synthetic seismogram and clear purpose layer reflection configuration, carry out dense well pattern horizon interpretation. In the fault part, by using the plane corresponding profile method and principle of plane guiding profile, combine with the spatial structure of the fault interpretation to identify fault accurately. Finally confirm the structure and fracture characteristic and evaluate the effectiveness of the important structure traps. Because of the sand reflection characteristic in the seismic profile is strong amplitude and low frequency, the amplitude and frequency attributes have a good effect of sedimentary facies describe. Make a prediction of sand effectively by pre-stack and post-stack seismic attribute comparison. Through the development of frequency division shale content inversion which correspond well between inversion result and shale content. So the inversion result can predict lithologic of purpose horizon in non well area, have a effective guidance of well deployment.This research had formed a reasonable research route for Xinli structural and sand prediction and achieve a good application effect. It is guidance for Heidimiao reservoir exploration in this area.