关键词: 剩余油, 分布, 小层, 水驱

Abstract: The reservoir of Hu 5 block in Huzhuangji Oilfiled has been developed for years, and it has entered into adjusting atage. The major issue of the block is to determine the distribution of its residual oil. With static and dynamic data,th a paper analyses the influence to small layer sedimental faces by the law of water-flooding movement and the control of residual oil distributian by fault,production well pattern and the reservoir heterogeneity. It studies the macro distribution form of residual oil in Hu 5 block, Huzhuangji oilfield from three aspects of water flooding condition,main distribution types of residual oil and employed condition of small layer reserves. Result shows major factors affected residual oil distribution in Hu 5 block,Huzhuangji oilfield are controlled by geological structure. It has certain potential for the types of water drive uncontrolled layer and the controlled but with no effect one. The small layer of with production rate between 5%~20% is the main potential layer in current stage. It has obtained obvious improvement for reservoir development effect by the implementation of adjustment strategy. The ratio of water injection well and oil production well number as well as water drive level have been improved significantly.

Key words: residual oil, distribution, small layer, water drive, Hu 5 block