摘要
鄂尔多斯盆地石油开发已步入攻坚啃硬阶段,随着石油勘探开发的不断深入,油田增储上产速度不断加快,致密储层资源量所占比例越来越大。对于采取常规水力压裂改造后的油井,日产量偏低、稳产期短。前置酸压裂技术可以改善井筒、裂缝与地层之间的渗流条件,达到提高单井产量的目的,是油田油井储层改造的新技术。为了证明前置酸压裂技术的增产效果,在靖边油田选取了三口长6储层试验井,并进行了现场试验,实验结果表明该技术可以在低渗透油田中应用且增产效果明显。
The development of Ordos basin has entered a more difficult period, under which the predominant re- serves are now in the tight zone. Wells employing normal hydraulic fracturing are facing problems like low oil rate and short plateau. Pre - positioned acid fracturing can help solve the problem for it could improve the seepage con- dition between wellbore, frac and formation. In order to prove the effect of this new technology, 3 wells in Jingbian oil field employed the pre -positioned acid fracturing in Chang6 reservoir and the results show that this technology can well increase production in low permeability reservoir.
出处
《延安大学学报（自然科学版）》
2013年第2期78-80,85,共4页
Journal of Yan'an University：Natural Science Edition
关键词
前置酸压裂
低渗透
油田
研究与应用
the pre -positioned acid fracturing
low permeability
the oilfield
research and application
