Effect of Temperature on Methane Adsorption in Shale Gas Reservoirs
MetadataShow full item record
Methane adsorption isotherms on shale were investigated at 25, 45, 60, and 80 °C with pressure up to 7 MPa (1015 psi). A total of six shale samples with low total organic carbon (TOC) from the Perth Basin and Canning Basin (Western Australia) were studied to quantify the effect of temperature on methane adsorption in shale gas reservoirs. The pore structure of the shale samples was measured using low-pressure nitrogen and carbon dioxide adsorption. At low temperature (25 °C), the methane adsorption isotherms show a general increase of methane adsorption with the TOC. However, the trend is not in line with methane adsorption at high temperature (80 °C). At 80 °C, sample AC-2 with 0.64% TOC has a larger maximum methane adsorption capacity than sample AC-4 with 1.03% TOC, indicating that the effects of temperature on methane adsorption for different shale samples are different. As the temperature increases, the decrease rate of methane adsorption on low TOC samples is smaller than that on the samples with a high TOC content. All the experimental methane adsorption isotherms fit well with the Langmuir equation. The Langmuir volumes of samples AC-2 (0.64% TOC), AC-4 (1.03% TOC), and AC-5 (0.23% TOC) are very close to each other at high temperature (80 °C). The thermodynamic parameters of methane adsorption on shale samples were determined. For the studied shale samples, the heat of adsorption and the standard entropy range from 4.5 to 14.5 kJ/mol and from 42.0 to 74.7 J mol–1 K–1, respectively.
Showing items related by title, author, creator and subject.
CO2 Wettability of Shales and Coals as a Function of Pressure, Temperature and Rank: Implications for CO2 Sequestration and Enhanced Methane RecoveryArif, M.; Barifcani, Ahmed; Zubair, T.; Lebedev, Maxim; Iglauer, Stefan (2016)The underground geological CO 2 storage into oil and gas reservoirs and/or saline aquifers is a promosing technique to reduce anthropogenic greenhouse gas emissions which thus ensures clean environment. CO 2 can also be ...
Zou, Jie; Rezaee, M. Reza; Yuan, Yujie (2018)© 2018 Elsevier B.V. Shale gas is becoming increasingly important to mitigate the energy crisis of the world. Understanding the mechanisms of gas transport in shale matrix is crucial for development strategies. In this ...
A review on the influence of CO2/shale interaction on shale properties: Implications of CCS in shalesFatah, Ahmed ; Bennour, Ziad ; Ben Mahmud, Hisham ; Gholami, Raoof ; Hossain, Mofazzal (2020)© 2020 by the authors. Carbon capture and storage (CCS) is a developed technology to minimize CO2 emissions and reduce global climate change. Currently, shale gas formations are considered as a suitable target for CO2 ...