期刊论文

Li, Yilian

中文

地球科学

1000-2383

2014

39

11

1575-1583

10.3799/dqkx.2014.150

国土资源部公益性行业基金项目（No.201211063）；

本校为其他机构

注入性是关系CO_2地质储存成功与否的一个关键的技术和经济问题,评价与提高CO_2在中国陆相沉积盆地普遍存在的低渗储层中的注入能力对于碳捕集与封存技术在中国的应用与推广具有重要意义.以江汉盆地江陵凹陷为例,通过数值模拟的方法开展高盐低渗储层CO_2注入能力评估与提高方案研究.结果表明:预注入淡水和低盐度的微咸水溶液均可不同程度地缓解注入井周围的盐沉淀问题;预注入CO_2饱和溶液或稀盐酸溶液,可显著提高注入井周围的孔渗值,提高CO_2注入性,但由于储层本身的低渗性,迁移距离有限,短时间内较难实现CO_2注入速率的大幅度提高.采取水力压裂措施可显著提高低渗储层中CO_2的注入性,其提升能力...

Injectivity is a crucial technical and economical issue for CO2 geological storage projects due to large volumes of CO2 to be stored. Assessment and enhancement of CO2 injectivity in ubiquitous low-permeability reservoirs in the continental sedimentary basins of China is of great significance to the application and development of carbon capture and storage (CCS) in China. Numerical simulation was carried out to investigate the potential and enhancement of CO2 injectivity in high-salinity and low-permeability aquifers by taking Jiangling depress...