天然气成因理论探索――拓宽领域、寻找新资源

介绍了传统的油气成因理论及其勘探“经济死亡线”的概念 ,认为对深层油气的研究应着眼于突破“干酪根晚期热降解生烃”理论、在现行勘探深度以下寻找油气资源。介绍了深层油气的形成机制及其主要影响因素 ,认为在盆地的超深层位有着丰富的天然气资源。论述了非生物成因天然气成因理论 ,认为非生物成因天然气的研究目的是寻找地球深部非生物 (无机 )过程形成的天然气资源 ,并介绍了已取得的研究成果 ,指出 :中国松辽盆地非生物成因天然气藏的发现和确证为该领域的研究提供了一个典型实例。在上述论述的基础上提出了地球内部有机质演化的动力学―热力学模型

THE EXPLORATION OF THE GENETIC THEORY ON NATURAL GASES:BROADENING EXPLORATIVE AREAS AND SEARCHING FOR NEW RESOURCES

The present paper briefly introduces the traditional theory on hydrocarbon geneses and the concept of "commercial deadline of exploration", outlining that the study on deep oil and gas is to break through "the theory on the hydrocarbon generation from late kerogen" and to search for deep oil and gas resources beneath the current explorative depth. Moreover, the theory on deep oil and gas as well as its key effective factors is also discussed in detail. The study on the abiogenic gas concerns searching for natural gas resources generated from abiogenic (inorganic) processes in the deep earth, the paper discusses in detail the theory on the abiogenic gas, introduces achievements obtained in this research field and reports the discovery of abiogenic gas reservoirs from the Songliao Basin and their evidence, providing a typical research example in this research field. In addition, on the basis of the above researches, a kinetic|thermodynamic model on the organic matter evolution in the interior earth.