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Implication of Sedimentary Facies and Shale Gas Accumulation in the Lower Silurian Longmaxi Formation, Eastern Sichuan Basin, China
Author(s) -
FENG Mingyou,
ZENG Zhen,
WANG Xingzhi,
ZHANG Fan,
LI Yizhen,
LI Ke
Publication year - 2015
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12303_16
Subject(s) - facies , shale gas , geology , sichuan basin , geochemistry , oil shale , china , structural basin , sedimentary rock , petrology , paleontology , archaeology , geography
The Lower Silurian Longmaxi Formation is the most prolific shale gas producing unit in the Sichuan Basin by the large thickness and rich resources, which also indicate a bright exploration prospect for the unconventional shale gas. Eastern Sichuan region, the relatively active high and steep structural belt between the stable massifs in Sichuan basin (Fig.1), is influenced by the factors of deepburied, intense tectonic reworking and fault development. Previous research is mainly based on tectonic structures but ignored the relationship between sedimentary facieses and organic-rich shale accumulation.