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AuthorAlipour, Mehdi K.
AuthorKasha, Ahmed
AuthorSakhaee-Pour, A.
AuthorSadooni, Fadhil N.
AuthorAl-Kuwari, Hamad Al Saad
Available date2023-09-09T11:57:27Z
Publication Date2022-10-01
Publication NamePetrophysics
Identifierhttp://dx.doi.org/10.30632/PJV63N5-2022a2
CitationAlipour K, M., Kasha, A., Sakhaee-Pour, A., Sadooni, F. N., & Al-Kuwari, H. A. S. (2022). Empirical relation for capillary pressure in shale. Petrophysics, 63(05), 591-603.‏
ISSN15299074
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85143550459&origin=inward
URIhttp://hdl.handle.net/10576/47332
AbstractBrooks and Corey (1964) and van Genuchten (1980) proposed the two most widely used relations for approximating capillary pressure. Petroleum engineers apply both, but they were originally proposed to understand the moisture content in soil whose void space differs from that of shale. This paper presents an empirical relation that can capture the nonplateau-like trend and the approximate capillary pressure in shale. It also implements the nonzero entry pressure, which the van Genuchten model cannot capture. This study compares the performance of the proposed model with those of Brooks and Corey and van Genuchten by determining the nonlinear regression coefficient (R2) and the mean square error (MSE). It uses mercury capillary pressure data of US shales available in the literature. The data set comprises 30 samples collected from the Bakken, Eagle Ford, and Greenhorn Formations with average permeability of less than 1 md and average porosity of 5%. The proposed model has applications in characterizing two-phase displacement in shales.
SponsorWe would like to acknowledge the support of the Qatar National Research Fund (a member of the Qatar Foundation) through Grant #NPRP12S-0305-190235. The findings achieved herein are solely the responsibility of the authors.
Languageen
PublisherSociety of Petroleum Engineers (SPE)
SubjectCapillary tubes
TitleEmpirical Relation for Capillary Pressure in Shale
TypeArticle
Pagination591-603
Issue Number4
Volume Number63
dc.accessType Abstract Only


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