珠江口盆地CO_(2)地质封存适宜性GCA评价  

GCA evaluation of the suitability of CO_(2)geological storage in the Pearl River Mouth basin

作　　者：李林涛 于航 李彦尊 孙丽丽 鲁建荣 汪生好 彭辉界 LI Lintao;YU Hang;LI Yanzun;SUN Lili;LU Jianrong;WANG Shenghao;PENG Huijie(CNOOC Research Institute Ltd.,Beijing 100028,China;CNOOC China Limited,Shenzhen Branch,Shenzhen,Guangdong 518054,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028 [2]中海石油(中国)有限公司深圳分公司,广东深圳518054

出　　处：《中国海上油气》2023年第1期170-178,共9页China Offshore Oil and Gas

基　　金：中国海洋石油集团有限公司“十四五”重大科研项目“海上CCUS上下游一体化研究(编号:KJGG-2022-12-CCUS-0101)”部分研究成果。

摘　　要：珠江三角洲地区CO_(2)大量集中排放,利用毗邻的珠江口盆地进行CO_(2)地质封存是破解区域经济发展与降碳需求矛盾的重要途径。本文以珠江口盆地7个二级构造单元,即北部隆起、珠一坳陷、珠三坳陷、中央隆起、珠二坳陷、南部隆起、潮汕坳陷为研究对象,基于构造、沉积、储盖组合、地温、热流等条件,采用灰色关联分析法对7个评价单元的CO_(2)封存适宜性进行综合评价,同时结合层次分析法计算评价因子权重。研究建立了3个准则层、8个指标的评价指标体系,该指标体系的建立对珠江口盆地筛选CO_(2)封存有利靶区具有借鉴意义;珠一坳陷关联度最大,具有较好的封存适宜性,是开展CO_(2)地质封存的首选区域。本文研究成果为珠江三角洲地区开展CO_(2)地质封存指明了方向。A large amount of CO_(2)is concentrated in the Pearl River Delta.The use of the adjacent Pearl River Mouth basin for CO_(2)geological storage(CGS)is an important way to solve the contradiction between regional economic development and carbon reduction demand.Taking the seven secondary structural units of the Pearl River Mouth basin,namely the northern uplift,Zhuyi depression,Zhusan depression,central uplift,Zhuer depression,southern uplift,Chaoshan depression as the research objects,and based on the structure,deposition,cover combination,ground temperature,heat flow and other conditions,this paper evaluates comprehensively the CO_(2)storage suitability of the seven units using gray correlation analysis method,and calculates the evaluation factor weight by combining with hierarchical analysis method.The evaluation index system of 3 standard layers and 8 indicators is established,which is of reference significance for screening the favorable CO_(2)storage targets in the Pearl River Mouth basin.With the highest correlation degree,the Zhuyi depression has good storage suitability,and can be used as the preferred area for CO_(2)geological storage.This study point out the direction of CO_(2)geological storage in the Pearl River Delta region.

关 键 词：珠江口盆地 CO_(2)封存 灰色关联分析法 关联度 

分 类 号：X511[环境科学与工程—环境工程]