Multiphase seepage flow characteristics of micro-fractures in subsurface reservoirs using the Lattice Boltzmann method

Dan Pu, Linfang Shen, Zhiliang Wang, Miao Li, Zhenquan Li, Wang Pengyu

Research output: Book chapter/Published conference paperConference paperpeer-review

Abstract

The traditional Shan-Chen pseudo-potential model has limitations, such as pseudo-velocity, density ratio limitation, and thermodynamic consistency defect. A method based on the improved Shan-Chen pseudo-potential model to study fluid flow in rock microfractures using the multiple-relaxation-time lattice Boltzmann method is proposed and validated using three arithmetic cases. The geometric characteristics (height and spacing) of the rough elements are varied to analyze the joint effects of rough elements and infiltration conditions on the
multiphase seepage in microfractures. Rough microfractures are simulated using regular rough elements of different shapes, including rectangular, trapezoidal, and triangular rough elements. With the increase in the rough element’s height, for the microfractures at the wall contact angle θ=145.5°, 117.2°, and 67.0°, the flow velocity decreases and then increases; for the θ=93.0° micro fissure, the fluid flow velocity decreases to stationary. With the increase in the rough element spacing, for the θ=145.5° micro fissure, the liquid flow rate continuously increases; for the θ=117.2°, 93.0°, and 67.0° micro fissures, the liquid flow rate continuously decreases. This study is expected to guide future researchers and engineering applications in terms of subsurface reservoirs.
Original languageEnglish
Title of host publicationProceedings of the ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering
Subtitle of host publication(OMAE2023) Volume 9
Place of PublicationNew York, NY
PublisherThe American Society of Mechanical Engineers(ASME)
Pages1-10
Number of pages10
Volume9
ISBN (Electronic)9780791886915
DOIs
Publication statusPublished - Jun 2023
Event42nd International Conference on Ocean, Offshore & Arctic Engineering: OMAE 2023 - Melbourne Convention and Exhibition Centre, Melbourne, Australia
Duration: 11 Jun 202316 Jun 2023
https://event.asme.org/OMAE-2023 (Conference website)
https://event.asme.org/Events/media/library/resources/omae/OMAE-2023-Final-Program.pdf (Program)

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume9

Conference

Conference42nd International Conference on Ocean, Offshore & Arctic Engineering
Country/TerritoryAustralia
CityMelbourne
Period11/06/2316/06/23
OtherOMAE 2023 is the ideal forum for researchers, engineers, managers, technicians, and students from the scientific and industrial communities from around the world to:

meet and present advances in technology and its scientific support
exchange ideas and experiences while promoting technological progress and its application in industry, and
promote international cooperation in ocean, offshore and arctic engineering
Following the tradition of excellence of previous OMAE conferences, 600 technical papers are planned for presentation.
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