Multi-technique characterization of shale reservoir quality parameters

Sharma, Vaishali; Sircar, Anirbid

doi:10.1016/j.jngse.2019.103125

Cited by 5 publications

(1 citation statement)

References 28 publications

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“…Temperature and Pressure. In addition to the surface properties of shale, the adsorption capacity of shale is affected by temperature and pressure [38,39]. At a constant temperature, the adsorption gas content of the same sample increases with an increase in pressure, which also proves that there is a positive correlation between pressure and adsorption capacity.…”

Section: 3mentioning

confidence: 89%

Characteristics and Origin of Methane Adsorption Capacity of Marine, Transitional, and Lacustrine Shales in Sichuan Basin, China

Tang

Wu²,

Zhong³

et al. 2021

Geofluids

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Adsorbed gas is an important component of shale gas. The methane adsorption capacity of shale determines the composition of shale gas. In this study, the methane adsorption capacity of marine, transitional, and lacustrine shales in the Sichuan Basin was analyzed through its isothermal adsorption, mineral composition, water content, etc. The results show that the methane adsorption capacity of marine (Qiongzhusi Formation and Longmaxi Formation), transitional (Longtan Formation), and lacustrine (Xujiahe Formation and Ziliujing Formation) shales is significantly different. The Longtan Formation has the strongest methane adsorption capacity. This is primarily related to its high organic matter and organic matter type III content. The methane adsorption capacity of the lacustrine shale was the weakest. This is primarily related to the low thermal evolution degree and the high content of water-bearing clay minerals. Smectite has the highest methane adsorption capacity of the clay minerals, due to its crystal structure. The water content has a significant effect on methane adsorption largely because water molecules occupy the adsorption site. Additionally, the temperature and pressure in a specific range significantly affect methane adsorption capacity.

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Section: 3mentioning

confidence: 89%