延长油田低渗油藏CO2封存适宜度评价方法研究及试验
Study and Experiment on Evaluation Method of CO2 Storage Suitability for Low Permeability Reservoir in Yanchang Oilfield
姚健 1郭红强 1张金元 1张添锦 2李嘉欣1
作者信息
- 1. 延长油田股份有限公司勘探开发技术研究中心,陕西 延安 716000
- 2. 延安大学,陕西 延安 716000
- 折叠
摘要
[目的]CO2地质封存是落实国家"双碳"目标的重要方法之一,建立完善的选址标准,是确保安全封存的前提条件,并能提高CO2地质封存的成功率.[方法]针对延长油田CO2封存选址优选困难的问题,借鉴国内外成功实施CO2封存的油藏实例,本着CO2地质封存选址"安全性第一,既经济又环境友好"等原则,从工程地质条件、封存潜力条件、社会经济条件等3方面进行评价,建立评价指标体系,利用层次分析法和灰色关联法建立多层次灰色评价模型.[结果]结果表明,所构建的模型能准确评价延长油田各个区块CO2封存的适宜度.[结论]研究成果为延长油田低渗油藏CO2封存优选场地提供了一种行之有效的方法.
Abstract
[Purposes]CO2 geological storage is one of the important methods to implement the national"double carbon"goal.Establishing a perfect site selection standard is a prerequisite for ensuring safe storage and can improve the success rate of CO2 geological storage.[Methods]In view of the difficulties in selecting the location for CO2 sequestration in Yanchang Oilfield,the evaluation index system was es-tablished from three aspects:engineering geological conditions,sequestration potential conditions,and social and economic conditions,based on the principles of"safety first,economy,technology and environ-ment friendly"and the successful implementation of CO2 sequestration reservoir examples at home and abroad.A multi-level grey evaluation model is established by using analytic hierarchy process and grey correlation method.[Findings]The results show that the model can accurately evaluate the suitability of CO2 storage in each block of Yanchang Oilfield.[Conclusions]Research findings provide an effective method for selecting the optimal site for CO2 storage in low permeability reservoir of Yanchang oilfield.
关键词
CCUS/低渗油藏/层次分析法/灰色关联法/适宜度评价Key words
CCUS/low permeability reservoir/analytic hierarchy process/grey correlation method/suit-ability evaluatio引用本文复制引用
基金项目
2022年延长油田股份有限公司勘探开发技术研究中心攻关项目(ycsy2022xjs-C-03-10)
出版年
2024
NETL
NSTL
万方数据