Abstract
Great breakthrough had taken place in the field of shale gas exploration of Wufeng-Lonmgaxi shale in Zheng’an Area, North Guizhou. In this paper, we reconstruct the one-dimensional geological model of Well Anye-1 by using PetroMod software. The burial history shows that the Wufeng-Longmaxi shale of Well Anye-1 mainly experienced four erosion movements. It reached the maximum burial depth (5331 m) at the late Cretaceous and the current burial depth is 2331 m. The thermal history shows that the shale started to generated oil (Ro>0.55 %) at the middle Devonian, entered into the wet gas stage (Ro=1.30-2.00%) at middle Jurassic and the dry gas stage (Ro>2.00 %) at the end of early Cretaceous, and now the thermal maturity is around 2.07 %Ro.
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