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我国目前已在四川盆地、渤海湾盆地、鄂尔多斯盆地、塔里木盆地和准噶尔盆地等发现了含硫化氢气藏，含硫化氢天然气和高含硫化氢天然气已成为我国天然气资源的重要组成部分。由于硫化氢极强的毒性和腐蚀性，威胁着钻采生产过程中的每一个环节，极易发生事故。而目前国内外对硫化氢的成因机理、分布规律和控制因素等方面的认识尚不能做到有效预测，安全钻采等工艺技术尚不配套成熟，在硫化氢出现时的防御措施也不到位，因此尽快开展硫化氢研究已是当务之急。研究了硫化氢天然气勘探开发中存在的问题：地质认识不足，形成机理掌握不够，地化特性考虑不充分等。指出了中国含硫化氢天然气资源潜力在陆上已开发气区和海陆碳酸盐岩储层中都十分巨大。

Research on Sour Gas in China and Its Exploration Prospects

Sour gas reservoirs have been found in Si chuan Basin, Bohai Gulf Basin, E' erduosi Basin, Talimu Basin and Zhunge'er Basin at present. The sour gas and high sour gas have become an important component part of the natural gas resources in China. Each link in the processes of drilling and production was threatened by the very high toxicity and corrosivity of hydrogen sulfide, which was extremely easy to cause an accident. Currently, an effective predic tion can't be realized yet at home and abroad according to the knowledge on the genetic mechanism, distribution law and control factors of hydrogen sulfide; the techniques of saft drilling and production have not formed a complete set and aren't skilled at; and the precautions against hydrogen sul fide are non-ideal; so that it is urgent for us to carry out the research on hydrogen sulfide as quickly as possible. In the paper it is pointed that the sour gas resource potential in the developed land gas provinces and marinel continental carbon ate reservoirs in China is tremendous, however there still ex ist some problems in sour gas exploration and development, such as the geological conditions, genetic mechanisms and geochemical properties of forming sour gas aren' t fully rec ognized and considered, etc.