In this work, based on isothermal adsorption experiments, field desorption experiments, and well log interpretation, the gas-bearing characteristics of the Longmaxi Formation shale in the Changning area were studied in detail. Although there are studies on the gas-bearing characteristics of the Wufeng Formation-Longmaxi Formation shale in the Changning area, the research is not systematic. A series of studies have been carried out on the shale of the Wufeng Longmaxi Formation in the Changning area, including mineral petrological characteristics, shale reservoir characteristics, and accumulation characteristics. The Changning area, located in the south of the Sichuan Basin, has obtained commercial shale gas from the Silurian Longmaxi Formation, which is characterized by rich organic matter, large hydrocarbon generation, and high gas content.

4Sichuan Changning Natural Gas Development Co., LTD., Chengdu, China.

3Shenzhen Branch of CNOOC LTD., Shenzhen, China.2Division of Key Laboratory of Carbonate Reservoirs, CNPC, Southwest Petroleum University, Chengdu, China.

1School of Geoscience and Technology, Southwest Petroleum University, Chengdu, China.Chang Lu 1,2,3, Lei Chen 1,2*, Cui Jing 4, Xiucheng Tan 1,2, Zhou Nie 4, Xin Chen 1,2 and De Heng 4

Sampletank xt vs xl