环境工程学报2024，Vol.18Issue(10)：2754-2763,10.DOI:10.12030/j.cjee.202403075
海上老井井筒完整性失效机制及二氧化碳注入可行性研究进展
Research progress on mechanism of wellbore integrity failure and feasibility of CO2 injection for existing wells of offshore CO2 geological storage
摘要
Abstract
Offshore CO2 geological storage has great potential,but the cost is high.Reuse of offshore existing oil and gas production wells for CO2 injection wells has the characteristics of low cost and reduced risk of CO2 geological storage leakage,making it a highly potential CO2 geological storage method.This study summarizes the CO2 leakage pathways of the offshore existing wells,analyzes the failure mechanism and influencing factors of the well integrity of CO2 storage in offshore existing wells,based on this technology,summarized the feasibility evaluation methods for CO2 injection in offshore existing wells,and proposed future research directions.The research results indicated that there are few studies on the failure mechanism for CO2 injection in offshore existing wells,and the feasibility evaluation method for CO2 injection of offshore existing wells was not perfect.It was urgent to carry out research on the well integrity failure mechanism and the feasibility evaluation method for CO2 injection of offshore existing wells,which was of great significance for the safe and efficient offshore CO2 geological storage.关键词
海上CO2封存/老井/井筒完整性/失效机制/可行性评价Key words
offshore CO2 geological storage/re-existing wells/wellbore integrity/failure mechanism/feasibility evaluation分类
资源环境引用本文复制引用
谭永胜,庞照宇,李琦,武广瑷,陈博文..海上老井井筒完整性失效机制及二氧化碳注入可行性研究进展[J].环境工程学报,2024,18(10):2754-2763,10.基金项目
国家自然科学基金面上项目(42377188),中海油科研项目(KJGG-2022-12-CCUS-0104) （42377188）
