井径对油井产能的影响

The Effect of Well Radius on Well Throughput

李　立,齐庆元,杨　靖

Li Li , Qi Qingyuan, Yang Jing

中原油田分公司采油工程技术研究院

Oil Production Engineering Technology Institute , Zhongyuan Oilfield Company , SINOPEC, Henan 457001 , P. R. China

根据理论公式分析了井径对油井产能的影响,同时研究了井径变化后射孔参数的改变对油井产能的影响,在此基础上进行了油井参数敏感性评价。研究认为,油井半径对油井产能影响最大,在低渗透油田中,通过压裂改造,小井眼油井可以获得和常规油井接近的开发效果。

This paper analyzes the effect of well radius on well throughput according on theory formula , studies the effect of changing shot-hole parameter on well throughput after well radius changes. Based on that , this paper discusses the sensitivity of oil-well parameters. This study shows that well radius has a most effection on well throughput . In low permeability oil field , small-radius well can achieve the same exploration purpose as conventional well.