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地球物理技术是观测、监测与证实CO_2地质封存安全性及确定CO_2-EOR效果的核心技术。虽然CO_2地质封存地球物理监测技术源自常规油气勘探地球物理技术,但是CO_2地质封存的地球物理监测需要长期开展,目前还存在着很大的困难和挑战。本文从CO_2地质封存的目标出发,研究了地球物理技术在CO_2地质封存的选址及监测中的任务。在总结国内外CCS(Carbon Capture and Sequestration)项目中地球物理监测技术与我们经验的基础上,分析了地球物理技术,重点是四维地震监测技术中采集、处理和解释技术的难点及经验。
Geophysical technology is the core technology for observing, monitoring and confirming the geological storage of CO_2 and determining the effect of CO_2-EOR. Although CO2 geologic sequestration geophysical monitoring technology is derived from conventional geophysical exploration techniques, the geophysical monitoring of CO 2 geologic sequestration needs to be carried out for a long time. So far, great difficulties and challenges exist. Based on the goal of CO 2 geologic sequestration, this paper studies the geophysical tasks in the site selection and monitoring of CO 2 geologic sequestration. Based on the summary of geophysical monitoring techniques and our experience in the CCS (Carbon Capture and Sequestration) project at home and abroad, geophysical technologies are analyzed. The emphasis is on the difficulties and experiences in the technologies of acquisition, processing and interpretation of 4D seismic monitoring techniques.