In 19 years after the reservoir was put into production by gas-cap drive, a good effect has been obtained. 投入气顶驱开采19年,取得较好效果。
For fractured carbonatite reservoirs, it is cautious to waterflood development, especially for fracture reserve with gas-cap and bottom water. Generally, after depletion drive and waterflood development, the finally recovery rate of base oil is less than 40%. 对裂缝十分发育的碳酸盐油藏,一般对注水开发非常谨慎,特别对既有气顶、又有底水的裂缝型油田,尤其如此。