Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs

A mathematical equation of water drive physical simulation of pressure-sensitive fractured reservoirs was established based on previous research results. In this study, the similarity criteria of water drive physical simulation of pressure-sensitive fractured reservoirs were derived according to the...

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Main Authors: Nie Bin, Gu Shaohua, Zeng Sijia
Format: Article
Language:English
Published: Hindawi-Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/5042656
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spelling doaj-d4374c7f8ee04ecb88b43381b200972d2021-08-30T00:00:11ZengHindawi-WileyGeofluids1468-81232021-01-01202110.1155/2021/5042656Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured ReservoirsNie Bin0Gu Shaohua1Zeng Sijia2School of Petroleum EngineeringPetroleum Exploration & Production Research InstituteSchool of Petroleum EngineeringA mathematical equation of water drive physical simulation of pressure-sensitive fractured reservoirs was established based on previous research results. In this study, the similarity criteria of water drive physical simulation of pressure-sensitive fractured reservoirs were derived according to the similarity theory. First of all, based on the three-dimensional differential equation of rock mechanics, a dimensionless analysis was conducted to determine the similarity relationship between the displacement of oil by water of pressure-sensitive fractured reservoirs, the similarity criterion was obtained, and the similarity criteria were formed. Secondly, according to the similarity criterion, the similar relationship between the stress-strain fields of the real object and the simulated object was worked out. Thirdly, the finite element software COMSOL Multiphysics was applied to model and calculate the multifield coupling process in the percolation of pressure-sensitive fractured reservoirs, verifying the correctness of the established similarity criteria and similarity relationship. The verifying results shows that the similarity between the physical model and the actual model can be realized by magnifying the geometric size N times in a certain direction and adjusting the load and boundary conditions according to the similarity principle, which can be used for the design of the pressure-sensitive fractured reservoir simulation model for a physical indoor test.http://dx.doi.org/10.1155/2021/5042656
collection DOAJ
language English
format Article
sources DOAJ
author Nie Bin
Gu Shaohua
Zeng Sijia
spellingShingle Nie Bin
Gu Shaohua
Zeng Sijia
Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs
Geofluids
author_facet Nie Bin
Gu Shaohua
Zeng Sijia
author_sort Nie Bin
title Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs
title_short Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs
title_full Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs
title_fullStr Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs
title_full_unstemmed Similarity Criteria of Water Drive Physical Simulation of Pressure-Sensitive Fractured Reservoirs
title_sort similarity criteria of water drive physical simulation of pressure-sensitive fractured reservoirs
publisher Hindawi-Wiley
series Geofluids
issn 1468-8123
publishDate 2021-01-01
description A mathematical equation of water drive physical simulation of pressure-sensitive fractured reservoirs was established based on previous research results. In this study, the similarity criteria of water drive physical simulation of pressure-sensitive fractured reservoirs were derived according to the similarity theory. First of all, based on the three-dimensional differential equation of rock mechanics, a dimensionless analysis was conducted to determine the similarity relationship between the displacement of oil by water of pressure-sensitive fractured reservoirs, the similarity criterion was obtained, and the similarity criteria were formed. Secondly, according to the similarity criterion, the similar relationship between the stress-strain fields of the real object and the simulated object was worked out. Thirdly, the finite element software COMSOL Multiphysics was applied to model and calculate the multifield coupling process in the percolation of pressure-sensitive fractured reservoirs, verifying the correctness of the established similarity criteria and similarity relationship. The verifying results shows that the similarity between the physical model and the actual model can be realized by magnifying the geometric size N times in a certain direction and adjusting the load and boundary conditions according to the similarity principle, which can be used for the design of the pressure-sensitive fractured reservoir simulation model for a physical indoor test.
url http://dx.doi.org/10.1155/2021/5042656
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AT zengsijia similaritycriteriaofwaterdrivephysicalsimulationofpressuresensitivefracturedreservoirs
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