摘要
从安塞油田坪北区的生产动态规律和数值模拟2个方面,研究了安塞油田坪北区剩余油分布规律,根据合理井网密度的分析与计算,认为坪北区目前的注采井距过大,油田井网有进一步加密调整的潜力。同时,从压力梯度、压力剖面等油藏监测资料的分析及生产动态资料的统计分析入手,论证了加密井的合理井排距的调整范围,并对小排距加密效果进行了模拟、预测和评价。其结果表明,安塞油田坪北区井网小排距加密调整是油田的有效稳产措施,具有提高产量和采油速度、缩短见效时间及提高采出程度的作用。
Based on the understand of residual oil distribution, the calculation result of reasonable, practical and economical well spacing, the analysis of reasonable well array distance and the effective prediction of well array with small distance, it is believed that the spacing between the injecting and producing wells is too large. It is suggested that infilling adjustment with small well array distance in Pingbei area is an effective measure to stable oil output, and this measure can enhance output and production rate, shorten response time and advance degree of reserve recovery.
出处
《断块油气田》
CAS
北大核心
2009年第1期60-62,共3页
Fault-Block Oil & Gas Field
关键词
安塞油田
特低渗透
小排距
井网密度
加密
Ansai Oilfield, ultra-low permeability, well array with small distance, well spacing, infilling drilling.
