摘要
为了搞清影响定1780井区长1油藏产量变化的主要因素,针对产量和含水变化规律,结合油田的实际情况,综合考虑了地质因素和开发因素对产量的影响。运用单因素分析方法,深入研究了沉积微相、油层发育情况、注采井数比、注采比、井网形式、注水状况等因素对产量变化的影响程度。研究结果表明:①产量变化以递减型为主,反九点井网开发效果优于七点和五点井网;②含水与采出程度变化以近“S”形为主;③影响产量的主控因素为井网形式和注采比。该研究方法对类似油田产量变化规律分析具有一定的指导和借鉴意义。
In order to find out the main factors influencing Chang-1 reservoir production change in well Ding1780,the effects of geological factors and development factors on production were taken into comprehensive consideration according to the variation law of production and water cut and the actual situation of the oilfield.The effects of sedimentary microfacies,reservoir development,injection-production ratio,injection-production ratio,well pattern and water injection status on yield change were studied by single factor analysis.The results showed that:①The production variation is mainly of decreasing type,and the development effect of reverse nine-point pattern is better than that of seven-point pattern and five-point pattern.②The variation of water cut and recovery degree is mainly near“S”shape.③The main control factors affecting the production are the pattern of well pattern and injection-production ratio.This research method has certain guidance and reference significance for the analysis of similar oilfield production variation law.
作者
张刚
温佳霖
韩迎鸽
贺洋
赵逸
Zhang Gang;Wen Jialin;Han Yingge;He Yang;ZhaoYi(Dingbian Oil Production Plant of Yanchang Oilfield Co.,Ltd.,Yulin,Shaanxi 718600,China)
出处
《非常规油气》
2020年第1期50-58,共9页
Unconventional Oil & Gas
关键词
特低渗透油藏
产量
注采井网
含水上升率
含水上升规律
ultra-low permeability reservoir
production
injection-production well spacing
water cut increasing rate
law of water cut increasing
