The study and exploration practice of shale gas accumulation has focused on the static system comparison, key parameters analysis, reservoir characteristics, enrichment mode etc. However, the research on dynamic recovery from the original hydrocarbon generation of shale gas to the present gas reservoir is still lacking. The burial history of shale gas reservoir can reflect the overall dynamic process of early formation and later transformation of shale gas reservoir. It controls the material basis of shale gas, the quality of reservoir physical properties, preservation conditions, gas content and formation energy, which is the core and foundation of shale gas accumulation process research. Herein, based on the five typical wells data in the Northeast Yunnan, including geochronological data, measured R_o values, core description records, well temperature data, paleoenvironment, paleothermal, etc., the burial history, thermal evolution history and hydrocarbon generation history of the Lower Silurian Longmaxi Formation were systematically restored via back stripping method and EASY%R_o model. The results show that 1) the differences in the burial history of marine shale in Longmaxi Formation can be divided into syncline type and anticline type. 2) The shale gas accumulation process can be divided into four stages, namely the source-reservoir-cap sedimentation period, initial accumulation period, main accumulation period, and adjustment period. 3) Based on the characteristics of burial history and preservation conditions, the areas with wide and gentle anticline, far away from the denudation area, and buried deeply with good fault sealing ability are priority structural locations for the shale gas exploration in northeast Yunnan.

页岩气成藏研究与勘探实践主要集中在静态系统对比、关键参数分析、储层特征、富集模式等方面，但从页岩气原始生烃到现气藏动态采收的研究仍处于起步阶段。不足。页岩气藏埋藏史可以反映页岩气藏早期形成和后期转化的整体动态过程。控制页岩气的物质基础、储层物性质量、保存条件、含气量和地层能量，是页岩气成藏过程研究的核心和基础。在此，基于滇东北 5 口典型井资料，包括年代学资料，测得的R _o值、岩心描述记录、井温资料、古环境、古热等，通过反剥法和EASY% R _o系统恢复了下志留统龙马溪组的埋藏史、热演化史和生烃史模型。结果表明：1）龙马溪组海相页岩埋藏史差异可分为向斜型和背斜型。2）页岩气成藏过程可划分为源储盖沉积期、初始成藏期、主要成藏期和调整期四个阶段。3）基于埋藏历史和保存条件的特点，背斜宽缓、远离剥蚀区、埋藏深、断层封闭能力强的地区是滇东北页岩气勘探的优先构造区。