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本文针对边、底水驱油藏特点,首先开展了多种化学驱油技术的优选及论证,明确了本类油藏开展化学驱是可行的,并进一步明确了最优驱油技术,在此基础上开发了一种全新的高效驱油体系,最终开展了物理模拟提高采收率实验,研究表明,在边、底水驱油藏开展“3+3”化学段塞组合驱使完全可行的,可以提高采收率17%以上。本文对于边、底水驱油藏开展三次采油研究进行了积极的探索,有一定的借鉴意义。
In this paper, according to the characteristics of the reservoirs in the waterfronts at the bottom and the bottom, we first carried out the optimization and demonstration of a variety of chemical flooding technologies. It is clear that it is feasible to carry out chemical flooding in this type of reservoirs and to further clarify the optimal flooding technology. Based on the development of a new efficient oil displacement system, the ultimate physical simulation of enhanced oil recovery experiments show that, in the edge and bottom water reservoir reservoir to carry out “3 +3 ” chemical slug combination drive fully feasible , Can improve the recovery rate of more than 17%. This paper makes a positive exploration on the tertiary oil recovery research in the side and bottom waterflood reservoirs, which is of some reference significance.