Open AccessThe Burial and Thermal Histories of Wufeng-Longmaxi Shale of Well Anye-1, Zheng’an Area, North Guizhou
Author(s) -
Shuyong Shi,
Yunpeng Wang,
Youshun Sun,
Liu Min
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/360/1/012033
Subject(s) - oil shale , cretaceous , geology , devonian , stage (stratigraphy) , maturity (psychological) , shale gas , paleontology , geochemistry , mining engineering , psychology , developmental psychology
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.