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

摘要： 通过利用静动态资料,分析了小层沉积微相对注人水运动规律的影响和断层、注采井网、储层非均质性对剩余油分布的控制,从储量的水淹状况、剩余油主要分布类型、小层动用状况三方面研究了胡状集油田胡5块剩余油宏观分布形式.结果表明,影响胡状集油田胡5块剩余油分布的主要因素是受地质构造控制,水驱未控制油层型和受控而未见效的差油层型都有一定的潜力,采出程度在5%-20%间的小层是现阶段的主要潜力层.通过实施调整挖潜措施,油藏开发效果得到了明显好转,注采井数比和水驱控制程度都得到了很大提高.

关键词: 剩余油, 分布, 小层, 水驱