煤层中CO2注入运移瞬变电磁法监测技术探索

崔方智, 周韬, 张兵

TEM monitoring technology of CO2 injection and transport in coal seam

Fang-Zhi CUI, Tao ZHOU, Bing ZHANG

图5 煤层附近地层感应电压平面对比 a—2011年10月背景值观测; b—2013年11月SX006-1井注入700 t CO2后的观测; c—2015年10月SX006-1井注入1 619 t CO2后闷井10个月,随后SX006井注入1 750 t CO2、SX006-2井注入800 t CO2后的观测

Fig.5 Planar contrast map of induced voltage in strata near coal seam a—observation of background values in October 2011; b—observations after 700 tons of CO2 was injected into well SX006-1 in November 2013; c—in October 2015, after injecting 1 619 tons of CO2 into well SX006-1, the well was closed for 10 months,subsequent observation after injecting 1 750 tons of CO2 into well SX006-2 and injecting 800 tons of CO2 into well SX006-2