提高杏北区水驱储量动用程度

Improve the Use of Water Drive Reserves in Xingbei District

杏北区是一个典型的多油层同时开发的区块,自下而上发育有长63、长62、长612、长611-3、长611-2、长611-1、长4+522、长4+521等油层,随着开发年限延长、采出程度的增加,主力油层见水速度快,储层非均质性强,水驱状况变差的矛盾越发突出,平面上压力分布不均,异常高压井增多,剖面上分层压力分布状况也存在差异,压力分布不均衡制约了后期的开发。

Xingbei District is a typical multi-oil layer developed at the same time, from the bottom up to develop a long 63, long62, long 612, long 611-3, long 611-2, long 611-1, long 4＋522, Chang 4＋521 and so on, with the development of the extension ofthe period, the increase in the degree of recovery, the main reservoir to see the water fast, reservoir heterogeneity, water drive worsedeterioration of the contradiction, the plane pressure distribution Uneven, high-pressure wells increased, the distribution of stratifiedpressure distribution situation is also different, uneven pressure distribution constraints of the late development.