摘要
天然气中的汞蒸气含量与重烃含量相关,其高含量与油气的成熟度有密切的关系;油气聚汞的根本原因是汞和油气具有相近的活动性和成藏条件。汞蒸气和油气一起运移至地表形成了表土中壤气汞和热释汞的异常分布。但表土汞异常还可能因油气之外的汞源形成,应仔细鉴别。还应注意应用条件。
The concentrations of mercury vapor in natural gases seem to be related with the contents of heavy hydrocarbons. High concentrations of mercury vapor are closely related with the maturity of oil and gas. Similarities in mobility and forming-burying conditions for mercury and oil/gas may present a reasonable explanation of the enrichment of mercury in oil and gas. The transport of mercury vapor together with oil and gas to the surface would result in the abnormal distribution of gaseous mercury in regolith and thermally released mercury. Nevertheless, the anomalies of mercury in the regolith could be contributed by other mercury sources in addition to that associated with oil and gas. So careful identification should be excercised. Moreover, the conditions of application should be taken into consideration as well.
出处
《地球化学》
CAS
CSCD
北大核心
1992年第3期294-304,共11页
Geochimica
