Based on exploration and development results and evaluation of marine shale gas in South China in the past ten years, in view of the features of “high maturity, strong tectonic reformation and high shear stress” of the shale in Zhaotong exploration zone in the Yunnan and Guizhou Plateau, as well as the key issues of long time diffusion and leakage of shallow shale gas, and the preservation conditions, the factors controlling shallow shale gas sweet spot and key zone selection evaluation technology of shale gas are investigated. From 2017 to 2018, the first significant exploration breakthrough was made in the Taiyang anticline at a buried depth of 700 to 2 000 m, discovering large-scale proved geological reserves of shallow shale gas. By examining the accumulation conditions and sweet spot control factors of the shallow shale gas in this area, it is found that the accumulation and productivity potential of shale gas in the mountainous area with complex structure outside basin are controlled by five factors: (1) The gas-rich area has weak tectonic reformation and good preservation conditions on the whole, taking on typical anticline trap occurrence mode. (2) The gas-rich area is in over-pressure state and high in shale gas content. (3) The gas-rich area has high quality shale and thus superior source rock condition. (4) The gas-rich area has high quality reservoirs dominated by class I. (5) The shale gas reservoir in the gas-rich area has high content of brittle minerals and small difference between maximum and minimum horizontal stresses which are conducive to hydraulic fracturing. The innovative practice and core technologies formed during the exploration and production capacity construction of shallow shale gas in the Zhaotong demonstration zone have great reference significance for shallow shale gas exploration and development in other areas.

基于近十年华南地区海相页岩气勘探开发成果及评价，结合云南昭通勘探区页岩的“高成熟度，强构造改造，高剪切应力”特征。研究了贵州高原浅层页岩气长期扩散扩散的关键问题，保存条件，控制浅页岩气最佳点的因素以及页岩气的关键区域选择评价技术。从2017年到2018年，在700至2000 m的埋深下，在太阳斜背斜上取得了第一个重大勘探突破，发现了浅层页岩气的大规模探明地质储量。通过研究该地区浅页岩气的成藏条件和甜点控制因素，研究发现，盆地外结构复杂山区的页岩气成藏潜力和生产潜力受五个因素控制：（1）天然气富集区构造改造较弱，整体保存条件良好，具有典型的典型意义。背斜陷阱的发生方式。（2）富气区处于超压状态，页岩气含量高。（3）瓦斯丰富的地区页岩质量高，烃源岩条件优越。（4）天然气富集区有优质储层，以I类为主。（5）天然气富集区的页岩气储层中脆性矿物含量高，最大和最小水平应力之差很小，有利于水力发电。压裂。