页岩气储层工作液伤害评价方法研究现状

王瑞; 吴新民; 马云; 张宁生

doi:10.3969/j.issn.1001-5620.2019.06.002

页岩气储层工作液伤害评价方法研究现状

doi: 10.3969/j.issn.1001-5620.2019.06.002

王瑞^1,2,3,
吴新民^1,2,3,
马云^1,2,3,
张宁生^1,2,3

1. 西安石油大学石油工程学院, 西安 710065;
2. 西部低渗-特低渗油藏开发与治理教育部工程研究中心, 西安 710065;
3. 陕西省油气田特种增产技术重点实验室, 西安 710065

基金项目:

国家自然科学基金“页岩及其矿物和有机质成分对多组分气体的吸附与解吸附机理研究”（51374172）；陕西省自然科学基础研究计划（2018JQ5148，2018JM5017）；陕西省教育厅自然科学研究项目（18JK0612）；西安石油大学青年科研创新团队（2019QNKYCXTD04）

详细信息

作者简介:
王瑞,博士,现在从事页岩气渗流机理、储层保护理论与技术研究工作。E-mail:rwang@xsyu.edu.cn

中图分类号: TE258
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- 被引次数: 0
出版历程
- 收稿日期: 2019-07-03
- 刊出日期: 2019-12-30

Status-quo of Study on the Methods of Evaluating Formation Damage by Shale Gas Reservoir Working Fluids

WANG Rui^1,2,3,
WU Xinmin^1,2,3,
MA Yun^1,2,3,
ZHANG Ningsheng^1,2,3

1. Xi'an University of Petroleum, College of Petroleum Engineering, Xi'an, Shannxi 710065;
2. Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi'an, Shannxi 710065;
3. Shaanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi'an, Shannxi 710065

摘要

摘要: 目前中国对深层页岩气开发中工作液对页岩气产出的影响和与之对应的页岩储层伤害及保护技术关注较少，这与页岩气井的产能评价、压裂工艺，以及高效工作液体系研发密切相关。笔者分析了工作液对页岩气渗流、扩散和吸附解吸的伤害评价方法研究进展，包括与页岩气渗流伤害相关的页岩储层的敏感性伤害、工作液伤害、返排时伤害解除及渗吸、工作液页岩气吸附/解吸与扩散伤害，和工作液对页岩气多尺度传质过程的伤害，并在此基础上讨论了页岩气储层伤害评价参数体系。通过梳理和分析，提出了此方向需要关注和亟待解决的问题。
- 页岩气 /
- 储层伤害 /
- 敏感性评价 /
- 渗流 /
- 返排 /
- 渗吸 /
- 扩散 /
- 解吸
Abstract: Presently in shale gas development in China, little attention has been paid to the effects of working fluid on the production of shale gas, as well as the damage and protection of shale gas reservoirs. All these are closely related to the production evaluation and the R&D of fracturing techniques and high efficiency working fluids. This paper analyzes the following issues about shale gas development, such as how working fluids damage the transfusion of shale gas, the diffusion, adsorption and desorption of shale gas, the progresses made in studying the methods of evaluating damage to shale gas production. Types of shale gas reservoir damage include damage by the sensitivity of the reservoir formations, damage by the working fluids, damage removal during flowback and imbibition, damage of adsorption/desorption and diffusion of shale gas by the working fluids, as well as the damage to the mass transfer of shale gas by the working fluids. Further discussed in this paper is the parameters used in evaluating shale gas reservoir damage. Based on the analysis, problems waiting to be resolved in this field are presented.
- Shale gas /
- Reservoir damage /
- Evaluation of formation sensitivity /
- Transfusion /
- Flowback /
- Imbibition /
- Diffusion /
- Desorption

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