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硫化氢是天然气和石油伴生气中的一种有害成分,会给油气的安全生产带来隐患。在渤海湾盆地渤中坳陷渤中25-1/S油田开发期间,在多口井中检测到硫化氢,含量达到(5～318)×10-6。通过天然气、硫酸盐、硫化亚铁等样品的实验分析,对该油田明化镇组下段和沙河街组硫化氢成因进行研究,认为渤中25-1/S油田硫化氢与油气同源,来源于古近系沙河街组干酪根的热分解。
Hydrogen sulfide is a harmful component of gas associated with natural gas and petroleum, which will bring hidden dangers to the safe production of oil and gas. During the development of the Bozhong 25-1 / S oil field in the Bozhong Depression in the Bohai Bay Basin, hydrogen sulfide was detected in many wells with a content of (5-318) 10-6. Based on the experimental analysis of samples of natural gas, sulfate and ferrous sulfide, the genesis of hydrogen sulfide in the lower part of Minghuazhen Formation and Shahejie Formation of this oilfield is studied. Hydrogen sulfide in Bozhong 25-1 / S oilfield is of the same source as hydrocarbon Thermal decomposition of kerogen in Shahejie Formation of Paleogene.