摘要
胜利油田河口采油厂有8个强边底水稠油区块，目前均处于高含水期，但采出程度低，剩余油富集，由于边底水活跃，无法满足蒸汽驱筛选标准。根据区块开发特点，采用数值模拟方法，研究高含水期井网加密的经济技术界限，提出采用“加密增油”这一指标评判是否具有井网加密的经济可行性。研究表明：无夹层时，目前井网无法有效动用井问原油，当有效厚度为6．7～8．7m，可以加密冷采开发，大于8．7m时，可以加密采用蒸汽吞吐开发；有夹层时，井间原油已被动用，加密没有经济效益。
There are 8 strong edge-bottom water common heavy oil reservoirs in Hekou oil production plant of Shengli oilfield.At present,it is at high water cut period,but the recovery degree is low and the remaining oil is abundant.Due to active edge-bottom water,it can't meet the screening standard of steam drive.Based on the characteristics of block development,with the numerical simulation method,the economic and technical limit of well pattern infilling at high water cut stage has been analyzed,and the index, ' encryption',has been put forward to make a judgment on whether the well pattern infilling is economic and feasible.Research results indicate when there is no inter-layer,the well pattern at present can not effectively produce the crude oil between wells.When the effective thickness is of 6.7 ~ 8.7m,steam stimulation can be adopted for well pattern infilling.When there is the inter-layer,the interwell oil has been produced,and there is no economic benefits for well pattern infilling.
出处
《石油地质与工程》
CAS
2015年第6期100-102,144,共3页
Petroleum Geology and Engineering
基金
国家重大专项"胜利油田特高含水期提高采收率技术"(2011ZX05011-002)部分研究成果
关键词
河口采油厂
强边底水普通稠油
井网加密
数值模拟
Hekou oil production plant
strong edgebottom water common heavy oil
well pattern infilling
nu-merical simulatio
