A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir
In this study, we present a hybrid model coupled with two-set nodes Green element method (GEM) and embedded discrete fracture model (EDFM) for capturing the effect of transient flow in inhomogeneous fractured porous media. GEM is an excellent advanced algorithm, which can solve nonlinear problems in...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/9910424 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561562534019072 |
|---|---|
| author | Linsong Cheng Xulin Du Renyi Cao Zhikai Wang Junjie Shi |
| author_facet | Linsong Cheng Xulin Du Renyi Cao Zhikai Wang Junjie Shi |
| author_sort | Linsong Cheng |
| collection | DOAJ |
| description | In this study, we present a hybrid model coupled with two-set nodes Green element method (GEM) and embedded discrete fracture model (EDFM) for capturing the effect of transient flow in inhomogeneous fractured porous media. GEM is an excellent advanced algorithm, which can solve nonlinear problems in heterogeneous media. That is also an obvious advantage of GEM against the original boundary element method (BEM). The novel GEM has double nodes of pressure and flux and it is an improvement of classical GEM, which has a second-order precision and fits for triangle structured grids. In the place of adopting the linear flow approximation for original EDFM, the interflows between local triangle matrix grids and fracture elements are derived using the novel GEM, which has higher accuracy than those in previous EDFMs. Consequently, the modified hybrid model can indeed calculate the pressure and flux distribution of transient flow in multifracture porous media. Three numerical cases are presented to show the practicability of our novel model which include (i) multistage fractured horizontal well, (ii) heterogeneous fractured porous media, and (iii) complex fracture networks (CFNs) in an unconventional reservoir. |
| format | Article |
| id | doaj-art-4f5482aa5daa47c4b30694a4c4ab9707 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-4f5482aa5daa47c4b30694a4c4ab97072025-02-03T01:24:43ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/99104249910424A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured ReservoirLinsong Cheng0Xulin Du1Renyi Cao2Zhikai Wang3Junjie Shi4College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaCollege of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaCollege of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaCollege of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaCollege of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaIn this study, we present a hybrid model coupled with two-set nodes Green element method (GEM) and embedded discrete fracture model (EDFM) for capturing the effect of transient flow in inhomogeneous fractured porous media. GEM is an excellent advanced algorithm, which can solve nonlinear problems in heterogeneous media. That is also an obvious advantage of GEM against the original boundary element method (BEM). The novel GEM has double nodes of pressure and flux and it is an improvement of classical GEM, which has a second-order precision and fits for triangle structured grids. In the place of adopting the linear flow approximation for original EDFM, the interflows between local triangle matrix grids and fracture elements are derived using the novel GEM, which has higher accuracy than those in previous EDFMs. Consequently, the modified hybrid model can indeed calculate the pressure and flux distribution of transient flow in multifracture porous media. Three numerical cases are presented to show the practicability of our novel model which include (i) multistage fractured horizontal well, (ii) heterogeneous fractured porous media, and (iii) complex fracture networks (CFNs) in an unconventional reservoir.http://dx.doi.org/10.1155/2021/9910424 |
| spellingShingle | Linsong Cheng Xulin Du Renyi Cao Zhikai Wang Junjie Shi A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir Geofluids |
| title | A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir |
| title_full | A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir |
| title_fullStr | A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir |
| title_full_unstemmed | A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir |
| title_short | A Coupled Novel Green Element and Embedded Discrete Fracture Model for Simulation of Fluid Flow in Fractured Reservoir |
| title_sort | coupled novel green element and embedded discrete fracture model for simulation of fluid flow in fractured reservoir |
| url | http://dx.doi.org/10.1155/2021/9910424 |
| work_keys_str_mv | AT linsongcheng acouplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT xulindu acouplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT renyicao acouplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT zhikaiwang acouplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT junjieshi acouplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT linsongcheng couplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT xulindu couplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT renyicao couplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT zhikaiwang couplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir AT junjieshi couplednovelgreenelementandembeddeddiscretefracturemodelforsimulationoffluidflowinfracturedreservoir |