摘要
随着大庆低渗透油田开发的逐步深入,已进入一次加密调整阶段,钻井任务比较多,钻控关井对产量影响的问题突现。通过对新站油田大404加密井区水井钻控关井后产量变化规律分析,同时对油水井间压力分布规律及水井实测压力降落曲线进行研究,提出采取"不同层段,停注时间不同,先停高压层,再停中压层,最后停低压层"的方法调整层间压差到合理的范围,并给出了具体操作步骤,最终达到减缓钻控关井对产量影响的目的。
With the deepening of low permeability reservoir development in Daqing Oilfield,it was entered into the first stage of infill well and well pattern adjustment,therefore drilling task was much more,the problem caused by slowdown pressure shut-off was serious,the rules of production variation after pressure slow-down shut-off of water injection well in Infill Wellblock 404of Xinzhan Oilfield were analyzed,methods were proposed including time for stop drilling was different for different intervals,high pressure interval was stopped first,and them intervals with mid pressure and low pressure were stopped orderly,by which the pressure difference was adjusted to a rational range.Concrete operation procedures are given,the target of pressure slow-down shut-off is achieved eventually.
出处
《石油天然气学报》
CAS
CSCD
2014年第3期101-105,8,共5页
Journal of Oil and Gas Technology
关键词
钻控关井
产量影响
地层压力
新站油田
shut-off by pressure slow down
effect on production
formation pressure
Xindan Oilfield
