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在中国东部和近海定点、长期、同步对低层大气采样测试 ,率先查明了轻烃和CO2 等浓度变化和分布 ,在中强地震发生前 ,距震中约 2 5 0km范围内 ,已知油气聚集区上空出现CH4与同系物浓度异常 ,强震前还往往同步出现增温幅度 1～ 6℃卫星热红外异常 ;首次提出低层大气中这种轻烃系列异常可作为指示深部油气藏的重要标志 ;探讨了其形成机理 .
In the east and offshore of China, fixed-point, long-term, synchronous sampling of low-level atmosphere was the first to identify changes in concentration and distribution of light hydrocarbons and CO2 concentrations. Before the strong earthquakes occurred, about 250 km away from the epicenter, it was known that hydrocarbon accumulation The anomaly of CH4 and its homologues appeared over the region. Before the strong earthquakes, the thermal infrared anomaly of 1 ~ 6 ℃ of temperature increase appeared synchronously. It was first proposed that this light hydrocarbon anomaly in the lower atmosphere could be used as an important indicator of deep oil and gas reservoirs. Discussed its formation mechanism.