Abstract
Effective comprehensive logging, seismic fine prediction of structure and sand body, analysis of remaining oil controlling factors and distribution, is the precondition for remaining oil development in high water cut oilfield during the middle and later periods of the development. Based on combination of fine well and seismic fine structure and sand body prediction research, this article analyzes main control factors and distribution regularity of remaining oil in the block. Through the analysis, the structure and reservoir heterogeneity affected the distribution of remaining oil in the Fuyu oil layer in the Chao 64 block, the distribution of remaining oil in the plane, interlayer and layer showed different distribution characteristic. The remaining oil mainly distributed in the reverse faulting footwall high structure position, injection production faultiness part, and micro range structural high position, inter well isolated sand body development area.
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