低矿化度水驱研究进展及展望

徐丽; 王轶平; 段毅; 邢蓝田; 吴保祥; 张晓丽

doi:10.3969/j.issn.1673-8926.2012.02.021

岩性油气藏 >

2012 , Vol. 24 >Issue 2: 106 - 110

DOI: https://doi.org/10.3969/j.issn.1673-8926.2012.02.021

油气田开发

低矿化度水驱研究进展及展望

徐丽 ,
王轶平 ,
段毅 ,
邢蓝田 ,
吴保祥 ,
张晓丽

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1.中国石油大学（华东）石油工程学院；2.怀俄明大学

王平（1988-），男，中国石油大学（华东）在读硕士研究生，主要从事油气田开发工程研究工作。地址：（266580）山东省青岛市经济技术开发区长江西路66 号中国石油大学（华东）石油工程学院。E-mail：changshan880820@163.com

网络出版日期: 2012-04-20

基金资助

国家科技重大专项“大型油气田及煤层气开发”（编号：2008ZX05013-002）资助

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Research advance and prospect of low salinity water flooding

XU Li ,
WANG Yiping ,
DUAN Yi ,
XING Lantian ,
WU Baoxiang ,
ZHANG Xiaoli

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1. College of Petroleum Engineering， China University of Petroleum， Qingdao 266580， China； 2. University of Wyoming， Laramie 82071， USA

Online published: 2012-04-20

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摘要

针对国外低矿化度水驱已运用于矿场实践而国内相关研究还未开展的现状，对低矿化度水驱机理及其存在的问题进行了综述，并对低矿化度水驱的发展趋势作了展望。对于砂岩油藏，低矿化度水驱提高采收率的机理主要为类碱驱、微粒运移以及多组分离子交换引起的储层润湿性改变；而对于碳酸盐岩油藏，低矿化度水驱提高采收率的机理则主要是多组分离子交换引起的储层润湿性改变。原油性质、储层性质、地层水及注入水性质、地层温度等因素均可以影响低矿化度水驱提高采收率的效果。目前低矿化度水驱存在的问题主要包括提高采收率机理不清、低矿化度水源限制、油田储层适应性问题等。最后指出，低矿化度水驱若与现有油田开发技术、煤层气生产技术、低渗透油田及高含水油田开发技术相结合，将会是经济、环保、潜力巨大的提高采收率新技术。

关键词： 储层特征; 沉积作用; 成岩作用; 延长组; 南梁地区; 鄂尔多斯盆地

本文引用格式

徐丽 , 王轶平 , 段毅 , 邢蓝田 , 吴保祥 , 张晓丽 . 低矿化度水驱研究进展及展望[J]. 岩性油气藏, 2012 , 24(2) : 106 -110 . DOI: 10.3969/j.issn.1673-8926.2012.02.021

Abstract

Aiming at the current status that low salinity water flooding has been applied to pilot test abroad while in China there is little research, this paper analyzed the current research status and existing problems, and proposed prospects for low salinity water flooding. It is concluded that for sand reservoirs, the main mechanisms of low salinity water flooding are similar to alkaline flooding, fines migration and the wettability alteration caused bymulti-component ion exchange, while for carbonate reservoirs, the mechanismof lowsalinitywater flooding is wettability alteration caused bymulti-component ion exchange. Crude oil properties, reservoir rock properties, formation and injected water salinity and reservoir temperature can all influence the effects of low salinity water flooding. The main problems lie in the unclear mechanisms, low salinity water source limitation and reservoir adaptability. Finally, it is pointed out that low salinity water flooding can be combined with current oilfield development techniques, coal bed methane production techniques, development techniques for low permeability oilfield and high water-cut oilfield, which will form new economical, environmental-friendly and great potential techniques for enhanced oil recovery.

Key words： reservoir characteristics; sedimentation; diagenesis; YanchangFormation; Nanliang area; Ordos Basin

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