摘要
姬塬油田长6油藏属于低渗透油藏,开发过程中采用超前注水技术。针对长6油藏采收率下降的现状,研究分析了超前注水的时机、地层压力、井底流压、注水强度和采液速度5个方面,确定了合理的超前注水参数。研究认为地层压力低、井底流压不足和采液速度低于合理值是造成产量下降的主要原因。
Jiyuan oilfield Chang 6 reservoir belongs to low permeability reservoir,the development process uses advanced water injection technology.In this paper,aiming at production status of Chang 6 reservoir,five aspects of the advanced injection timing,formation pressure,bottom hole flowing pressure,water injection intensity and liquid withdrawal speed were analyzed,reasonable advanced water injection parameters were determined.The results show that low formation pressure,low bottom hole flowing pressure and low liquid withdrawal speed are main reasons to cause output decline.
出处
《辽宁化工》
CAS
2013年第3期283-284,286,共3页
Liaoning Chemical Industry
关键词
低渗透
超前注水
姬塬油田
low permeability
advanced water injection
Jiyuan oilfield
