层内沉积转换面在厚砂层剩余油研究中的应用

USE CONVERSION SURFACE DEPOSITION TO RESEARCH AND EXPLOIT RESIDUAL OIL IN THICK SAND BEDS

对港东-唐家河油田馆陶油组顶部厚油(砂)层剩余潜力进行研究,据单井测井响应及录井资料,在Ng I 1-1内部发现了位于沉积旋回转换处的物质转换面.应用沉积转换面理论对Ng I 1-1内部厚层进行挖潜,得出一套完整的剩余油挖潜方法(未射层控制射孔,已射层堵层重补),深化了对层内潜力认识,拓宽了挖潜措施渠道,为同类型油藏开发探索出一条新路.

According to the research of residual oil in thick sand beds of Guantao group, which is located in GD--TJH oilfield of Dagang oil field oil extraction Factory one （hereinafter called Ng I 1-1）, and also according to the finding of the, common exists of conversion surfaces of sedimentary cycle in Ng I 1-1 after we analysis the log response and log data, we make an exploring by choosing a pilot test in Ng I 1-1 to research on fracture zone or sandstone for conversion surface of sedimentary cycle. Then we get a whole set of exploring methods of residual oil in the thick sand beds reservoir（non- perforation,control perforation interval; perforation,block the stratum then repeatedly it, which help us to know the layer and broaden exploring methods. This method also provides a new and feasible way for the similar oil reservoirs.