论文部分内容阅读
中原油田是断层十分发育的复杂断块油气田,目前已进入开发中后期,稳产难度越来越大,开发调整的主要目的是挖掘剩余油。在近几年中原油田的调整部署中,推广应用了双靶定向井技术,取得显著效果:①充分动用断块高部位剩余油,提高采收率;②完善极复杂断块油藏的注采关系;③开发微型油藏,提高单井经济效益;④定向兼探已知油层之下的新层位,降低滚动勘探风险;⑤单井钻遇油层厚度大且水淹程度低;⑥油井初期产量高,后期补孔潜力大,稳产时间长;⑦单位钻井成本适中,投资回收期短。在精细油藏描述和准确预测剩余油分布的基础上,应用双靶定向井技术可以实现复杂断块油气藏的增储稳产,并通过完善注采井网来增加可采储量。表1(王孝陵摘)
Zhongyuan Oilfield is a well-developed complex fault block oil and gas field, has now entered the development of the late, steady production more and more difficult, the main purpose of development and adjustment is to tap the remaining oil. In the adjustment and deployment of Zhongyuan Oilfield in recent years, the dual-target directional well technology has been popularized and applied. The remarkable results have been achieved: (1) fully utilize the remaining oil in the high part of the fault block to enhance oil recovery; (2) improve the injection and production of extremely complicated fault block reservoir Relationship; ③ development of micro-reservoirs to improve the economic benefits of single well; ④ directional exploration of known new layers below the reservoir to reduce the risk of rolling exploration; ⑤ single well drilling thick reservoir thickness and low waterlogging; High output, post-fill hole potential, stable long time; ⑦ unit drilling costs moderate, short payback period. On the basis of describing and accurately predicting the remaining oil distribution in fine reservoirs, the application of double-target directional well technology can increase and stabilize the production of complex fault-block reservoirs and increase the recoverable reserves by improving the injection-production well pattern. Table 1 (Wang Xiaoling pick)