歧五断块整体深部调驱技术

TECHNOLOGY OF ENTIRETY OIL DISPLACEMENT ON BASIS OF PROFILE CONTROL IN QI5 BLOCK

王徐庄油田歧五断块为厚层不均质砂岩油藏 ,经过 2 0多年的注水开发 ,断块内的不均质性更加突出。为提高断块开发水平 ,加强了前期地质研究和井间监测工作 ,在搞清了断块内的剩余油分布规律和断块内的水道情况的基础上 ,对断块的 4口注水井实施了整体深部调驱技术 ,调驱后见到了明显的效果 ,使日产水平增加了 11.4t,综合含水下降了 1.4个百分点 ,自然递减下降了 43.4%,到目前已累计增油 35 0 0t。介绍了歧五断块在调驱治理过程中的做法、施工参数、效果及取得的认识。实现投入与产出比为 1∶3.3。

Qi5 block of Wangxuzhang Oilfield was carried out deep entirety profile control and oil displacement field test in Dagang Oilfield, gained an ideal effectiveness, reversed a passive state of productive output decreasing, the per day output has increased by 11.4t, combined water-cut has decreased by 1.4%, natural decline has decreased 43.4%, so far, have obtained an accumulative oil increment by 3500t. This article has introduced the practice, operative parameters, effectiveness and gained recognition on Qi5...