新庄油田断层临界开启压力研究与应用  

Fault Critical Opening Pressure in Xinzhuan Oilfield and Its Application

作　　者：王克杰[1] 张亚君[1] 江谋勇[1] 谈馨[1] 杨菲[1] 丁诚开[1] 

机构地区：[1]河南油田分公司石油勘探开发研究院,河南南阳473132

出　　处：《石油天然气学报》2008年第4期57-60,共4页Journal of Oil and Gas Technology

摘　　要：河南新庄油田断裂极为发育,构造破碎,断块含油面积小,邻近断层的吞吐井较多,吞吐井在注蒸汽阶段,高温、高压蒸汽极易引发断层开启,使蒸汽沿断层面与临近水层窜通、或窜至地表喷发,影响开发效果;对新庄油田采用全直径岩心建立物理试验模型,通过物理模拟不同倾角裂缝的渗透率与净围压变化关系,确定了断层的临界开启压力,为合理控制吞吐井与断层的距离,确保注汽阶段地层压力不超过断层临界开启压力提供了依据;研究成果在河南油田稠油开采中应用后,避免了热能损失以及产生的安全问题。Fractures were well grown in Henan Xinzhuang Oilfield, structure was broken, oil bearing area of the block was small and there were many soakage wells near the faults, high temperature and high pressure steam was initiated from the fault open while steaming, it caused the steam passing conterminously through aqueous layers along the fault or to earth's surface and erupt. It impacts the development effect. By establishing physical experiment model with full size core, the relationship between fracture permeability and variation of net peripheral pressure were simulated. The research identifies the critical opening pressure of the fault, provides a foundation for controlling the distance between the soakage well and fault, ensuring the formation pressure not exceeding the critical opening pressure of the fault while steaming. After the research is applied in Henan heavy oilfield, it avoids the heat loss and the security issues.

关 键 词：断层 开启临界压力 新庄油田 稠油开发 

分 类 号：P618.13[天文地球—矿床学]