渗吸置换提高原油采收率研究进展
Research progress on enhancing oil recovery by imbibition
王永红 1赵明伟 2耿捷 3晏翔 2刘长龙 4彭鑫 2蒙露明 2邹辰炜 2胡勇 5戴彩丽2
作者信息
- 1. 中国石油集团工程技术研究院有限公司
- 2. 中国石油大学(华东)石油工程学院
- 3. 中国石油乍得公司
- 4. 中海石油(中国)有限公司天津分公司
- 5. 中国石油化工股份有限公司石油勘探开发研究院
- 折叠
摘要
渗吸置换作用已逐渐成为非常规油藏和低渗、特低渗裂缝性油藏提高原油采收率的一种重要方式,大量裂缝的存在及细小孔隙发育为渗吸作用的发生创造了有利条件.首先,基于毛细管压力与重力对渗吸的贡献程度,对渗吸模式进行分类;而后,主要聚焦于影响渗吸的各类因素,详细阐述如储层类型、孔渗物性、边界条件、流体(包括原油与渗吸液体)性质等因素对渗吸的影响规律及作用机制,总结了目前使用的研究渗吸的各种实验手段;最后,根据渗吸作用的研究进展,探讨在实验条件确定、黏土水化影响、界面张力优化和渗吸模式选择等方面所面临的问题,并对这些问题的研究前景进行展望.
Abstract
Imbibition has gradually become a crucial mechanism for enhancing oil recovery in unconventional and low-permeability fractured reservoirs.The existence of a large number of fractures and the development of small pores provide favorable conditions for imbibition.This paper categorizes the imbibition mode based on the contribution of capillary force and gravity to imbibition.It elaborates in detail on the impact laws and mechanisms of factors such as reservoir type,pore permeability properties,boundary conditions,and fluid(including crude oil and infiltration liquids)properties on infiltration focuses on various factors that affect infiltration,and summarizes various experimental methods currently used to study infiltration.Finally,based on the progress in imbibition research,we discuss and look forward to the research prospects in selecting experimental conditions,the influence of clay hydration,optimising interfacial tension,and determining imbibition patterns.
关键词
渗吸/提高采收率/非常规油藏/低渗特低渗/裂缝Key words
imbibition/enhance oil recovery/unconventional reservoirs/low and ultra-low permeability/fracture引用本文复制引用
基金项目
国家自然科学基金国际(地区)合作与交流重点项目(52120105007)
国家自然科学基金面上项目(52374062)
国家重点研发计划(2019YFA0708700)
出版年
2024
国家科技期刊平台
NSTL
万方数据