Geophysical monitoring technology for CO_2 sequestration

CO_2地质封存地球物理监测技术（英文）

Geophysical techniques play key roles in the measuring, monitoring, and verifying the safety of CO2 sequestration and in identifying the efficiency of CO2-enhanced oil recovery. Although geophysical monitoring techniques for CO2 sequestration have grown out of conventional oil and gas geophysical exploration techniques, it takes a long time to conduct geophysical monitoring, and there are many barriers and challenges. In this paper, with the initial objective of performing CO2 sequestration, we studied the geophysical tasks associated with evaluating geological storage sites and monitoring CO2 sequestration. Based on our review of the scope of geophysical monitoring techniques and our experience in domestic and international carbon capture and sequestration projects, we analyzed the inherent difficulties and our experiences in geophysical monitoring techniques, especially, with respect to 4D seismic acquisition, processing, and interpretation.

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。