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不同赋存状态烃类气体（包括游离的天然气、吸附气、酸解气、水溶气和油溶气）研究对于烃源岩评价、天然气成因判识、油气复合关系研究，油气源对比和油气勘探均具有十分重要的理论和应用价值。我国经过“六五”、“七五”和“八五”期间组织天然气地学攻关，在该领域内取得了较大进展。综述了我国不同赋存状态烃类气体的研究现状，分析了研究中存在的几个问题，并展望了其理论和应用前景。
Hydrocarbons (including free natural gas, adsorbed gas, acid-dissolved gas, water-soluble gas and oil-dissolved gas) from different occurrences are of great significance for the evaluation of source rocks, natural gas genesis, hydrocarbon complex relations, hydrocarbon source correlation and hydrocarbon exploration Has very important theory and application value. After China organized the research of natural gas geosciences during the “Sixth Five-Year Plan”, the “Seventh Five-Year Plan” and the “Eighth Five-Year Plan”, great progress has been made in this field. The present research status of hydrocarbon gases in different occurrences in China is reviewed. Some problems existing in the research are analyzed, and its theory and application prospects are prospected.