底水油藏高效开发的一个成功实例——东海平湖油气田花港组油藏开发技术

A successful example for efficient development of bottom water drive reservoir:development techniques for Huagang Formation reservoir in Pinghu oil and gas field, East China sea

东海平湖油气田花港组油藏主要为构造底水油藏。在花港组油藏开发过程中,采取了一系列适合油藏地质条件和流体特性的高效开发技术对策,不仅确保了油藏较高的开采速度,而且达到了较好的开发效果。目前花港组油藏综合含水率为89.7%、采出程度为37.1%,预测水驱采收率可达到45%左右。

Huagang Formation reservoir in Pinghu oil and gas field, East China sea, was a structural reservoir with bottom water. During its development, a series of efficient techniques was applied, which are suitable to its geological conditions and fluid properties, resulting in not only a higher development speed, but also a better effect. Now the water cut of this reservoir is 89.7% ,and its recovery factor has been 37.1%. Thus it is expected that its water drive recovery factor can be up to about 45%.