罗家油田硫化氢成因及运聚规律研究

以罗家油田为例，分析并总结了该区硫化氢的成因机理．将其归结为热化学成因、生物成因和岩浆成因3大类。硫化氢分布受沉积相控制，膏盐岩系和生油岩组合是最有利于生成硫化氢的沉积岩系组合，油源分析对比可间接反映硫化氢来源及成因。断层和裂缝既是硫化氢运移的通道，又对硫化氢富集起遮挡作用，易于硫化氢聚集成藏。火成岩的频繁活动生成大量的硫化氢，岩体刺穿形成的裂缝、断层也促进了硫化氢的运移和富集。

Study on the Law of Transport and Gathering of Hydrogen Sulfide in Luojia Oilfield

Taking Luojia oilfield for example,the genesis mechanisms of hydrogen sulfide in this oilfield are analyzed and summarized.They are deduced to three main types: hot chemical,biogenesis and magma genesises. The distribution of hydrogen sulfide is controlled by sedimentary facies.The combination of gypsum series and source rock is the one of sedimentary rock series that is the most favorable for generating hydrogen sulfide.The analysis and comparison of oil source can indirectly reflect the source and genesis of hydrogen sulfide.Faults and fractures are the transport passage of hydrogen sulfide as well as deep out the enrichment of hydrogen sulfide,being easy of hydrogen sulfide's gathering and accumulation.The frequent activity of igneous rocks produces a large amount of hydrogen sulfide.The fractures and faults forming from rock mass stab also promote the transport and enrichment of hydrogen sulfide.