摘要
阿南油田属低渗透复杂断块油田,断层比较发育,构造极为破碎。在长期的注水开发过程中采取了“双高”(高注水压力、高注采比)注水政策,同时采油井的压裂改造和断层密封性差等因素的影响,致使一部分断层表现出明显的“断层导水”现象。通过实际资料分析,探讨了断层导水的原因,并对其进行了分类。研究结果认为,断层导水对油田初期的影响虽存在有利的一面,但从长期来看是极为不利的。针对不同的断层导水现象,采取了相应的治理措施,取得了比较好的效果。
Anan oilfield is a typical low permeability complex fault block reservoir. The water injection policy of high injection pressure and high injection production ratio has been adopted in the long term water flooding development process. At the same time, under the situation of fracturing reconstruct for well and poor seal of fault, some faults put up water channeling phenomenon obvious. This paper discussed on reason of fault water channeling by analyzing of practice data. As a result, the influence of fault water channeling to development is advantageous in the initial stages, but it is disadvantageous in the middle and high water flooding stages. Many technological measures have been adopted aim at fault water channeling phenomenon, and good effect have been attained.
出处
《断块油气田》
CAS
2005年第3期58-60,共3页
Fault-Block Oil & Gas Field
