Pore Structure Characterization of Shale Reservoir Using Nitrogen Adsorption-Desorption

Autor: Riad Mostefai, Mohamed Kadri, El-Arbi Senoussi, Messaoud Hacini, Salih Awadh
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Iraqi Geological Journal, Vol 56, Iss 1D, Pp 1-13 (2023)
Druh dokumentu: article
ISSN: 2414-6064
2663-8754
DOI: 10.46717/igj.56.1D.1ms-2023-4-10
Popis: This research paper aimed to quantitively characterize the pore structure of shale reservoirs. Six samples of Silurian shale from the Ahnet basin were selected for nitrogen adsorption-desorption analysis. Experimental findings showed that all the samples are mainly composed of mesopores with slit-like shaped pores, as well as the Barrett-Joyner-Halenda pore volume ranging from 0.014 to 0.046 cm3/ 100 g, where the lowest value has recorded in the AHTT-1 sample, whereas the highest one in AHTT-6, while the rest samples (AHTT-2, AHTT-3, AHTT-4, AHTT-5) have a similar average value of 0.03 cm3/ 100 g. Meanwhile, the surface area and pore size distribution were in the range of 3.8 to 11.1 m2 / g and 1.7 to 40 nm, respectively. Nanoparticle size was in the range of 540 to 1589.2 nm, this parameter showed a strong negative correlation with both the surface area and pore volume. Findings can contribute significantly to the pore structure evaluation and characterization of the Silurian shale reservoir in the Ahnet basin. .
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