Effects of fractal surface roughness and lithology on single and multiphase flow in a single fracture: An experimental investigation

Tayfun Babadagli*, Xiaojuan Ren, Kayhan Develi

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Araştırma sonucu: ???type-name???Makalebilirkişi

135 Atıf (Scopus)

Özet

This paper presents qualitative and quantitative analysis of single and multiphase flow in a single fracture based on experimental results and demonstrates relationships between the roughness and fluid movement and distribution. Experiments were conducted on seven perfectly-matching and tightly-closed rough model fractures reproduced from the single fractures of lithologically different seven rock blocks that were jointed artificially through laboratory indirect tensile tests. Transparent upper and opaque lower walls of these models facilitated the visualization of the flow experiments. Rough surfaces of the model fractures were first digitized. Then, using the gathered data in variogram analysis, surface roughness was quantified by fractal dimension. Another roughness quantification parameter was also handled as the ratio between total fracture surface area and planar surface area. Experimental measurements of flow were quantitatively correlated to surface roughness under different normal loading (aperture) conditions. Also, constant rate immiscible displacement experiments were performed to assess the roughness effect represented by seven different lithologies and wettability effect controlled by the material used in manufacturing the fracture samples on the residual saturation development.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)40-58
Sayfa sayısı19
DergiInternational Journal of Multiphase Flow
Hacim68
DOI'lar
Yayın durumuYayınlandı - 1 Oca 2015

Bibliyografik not

Publisher Copyright:
© 2014 Elsevier Ltd.

Finansman

This research was conducted under the first author’s (TB) NSERC Industrial Research Chair in Unconventional Oil Recovery (industrial partners are Schlumberger, CNRL, SUNCOR, Petrobank, Sherritt Oil, APEX Eng., PEMEX, Statoil, and Husky Energy) and an NSERC Discovery Grant (No: RES0011227). The third author (KD) is also thankful to the Scientific and Technological Research Council of Turkey (TÜBİTAK) for his postdoctoral scholarship through the BIDEP program. We gratefully acknowledge these supports.

FinansörlerFinansör numarası
CNRL
Husky EnergyRES0011227
Petrobank
Sherritt Oil
TÜBİTAK
Schlumberger Foundation
Suncor Energy Incorporated
Natural Sciences and Engineering Research Council of Canada
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

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