我国页岩气资源及影响因素

Influence Factors of Shale Gas Resources in Our Country

在世界面临能源短缺的背景下,页岩气作为油气勘探的一个新领域,越来越得到世界各国的重视。我国页岩气资源丰富,许多盆地或地区具有页岩气大规模成藏的地质条件,对页岩气的研究显得尤为重要。该文介绍了我国页岩气资源储量、分布及开采面临的问题,概述了页岩气地质特征。在此基础上探讨了我国页岩气的影响因素,认为我国页岩气主要受有机碳含量、成熟度、裂缝的发育程度、地层压力的控制;页岩气与煤层气同属于非常规天然气,其赋存形态、成因类型、富集规律具有很多相似之处,因此可将页岩气与煤层气进行对比研究。

Facing the energy shortage in the world,as a new field,shale gas gets the attention of the coun-tries all over the world.Our country is rich in shale gas resources,many basins and regions has the geolog-ical conditions of mass accumulation of shale gas.Thus,the research on shale gas is very important.In this paper,shale gas resource reserves,distribution and facing problems in our country have been intro-duced,and geological characteristics have been summarized as well.On these basis,influencing factors of shale gas in our country have been studied.It is regarded that the shale gas of our country is mainly affect-ed by the organic carbon content,maturity,degree of development of the crack and formation pressure. Shale gas and coal bed methane natural gas belong to the same unconventional gas.Its chemical speciation, genetic type,enrichment regularity are similar to coal bed methane gas,so a comparative study of shale gas and coal bed methane gas can be carried out.