DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A hybrid embedded discrete fracture model for simulating tight porous media with complex fracture systems

Abstract

Numerical simulation considering complex fracture networks in tight oil reservoir becomes a hot issue during these years. Recently, embedded discrete fracture model (EDFM) shows great advantages over the DFM approaches in both calculation efficiency and simplicity of simulation workflow. EDFM has been widely used in tight oil/gas natural energy or enhanced oil recovery (EOR) development. If a large number of small-scale natural fractures exist in reservoir, the calculation efficiency of EDFM method may decrease. A new hybrid simulation model combining the EDFM and dual porosity (DP) model is proposed. The large-scale fractures are dealt with EDFM method while small scale fractures are dealt with DP model. Considering the low permeability of matrix, transient transfer between matrix and natural fracture is considered. The proposed hybrid model is validated compared with the local grid refinement (LGR) model and EDFM-MINC model, and the difference between transient transfer and pseudo-steady-state transfer effect on production is presented. Finally, two test cases are presented, and the sensitivity of some key parameters are investigated. Result shows that the new simulation model has higher calculation efficiency than LGR and EDFM-MINC models. Meanwhile, it honors a good accuracy. The pseudo-steady-state transfer between matrix and natural fracture leads to bigmore » error in tight oil production performance analysis both in single phase and two phases flow. Low matrix permeability and big matrix size increase the production difference between pseudo-steady-state transfer and transient transfer models. The proposed model can simulate reservoirs considering stochastic permeability distribution.« less

Authors:
 [1];  [1];  [2]
  1. China Univ. of Petroleum, Qingdao (China). School of Petroleum Engineering
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Computational Earth Science Group
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); China Univ. of Petroleum, Qingdao (China)
Sponsoring Org.:
USDOE; National Natural Science Foundation of China (NSFC); Natural Science Foundation of Shandong Province (China); China Univ. of Petroleum; Fundamental Research Funds for the Central University (China)
OSTI Identifier:
1503192
Report Number(s):
LA-UR-18-30867
Journal ID: ISSN 0920-4105
Grant/Contract Number:  
89233218CNA000001; U1762216; ZR2016EEM30; JQ201716; YCXJ2016018; 18CX02029A
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Petroleum Science and Engineering
Additional Journal Information:
Journal Volume: 174; Journal ID: ISSN 0920-4105
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; 58 GEOSCIENCES; numerical simulation; discrete fracture model; naturally fractured tight oil reservoir; transient transfer; stochastic permeability

Citation Formats

Xu, Jianchun, Sun, Baojiang, and Chen, Bailian. A hybrid embedded discrete fracture model for simulating tight porous media with complex fracture systems. United States: N. p., 2018. Web. doi:10.1016/j.petrol.2018.10.094.
Xu, Jianchun, Sun, Baojiang, & Chen, Bailian. A hybrid embedded discrete fracture model for simulating tight porous media with complex fracture systems. United States. https://doi.org/10.1016/j.petrol.2018.10.094
Xu, Jianchun, Sun, Baojiang, and Chen, Bailian. Mon . "A hybrid embedded discrete fracture model for simulating tight porous media with complex fracture systems". United States. https://doi.org/10.1016/j.petrol.2018.10.094. https://www.osti.gov/servlets/purl/1503192.
@article{osti_1503192,
title = {A hybrid embedded discrete fracture model for simulating tight porous media with complex fracture systems},
author = {Xu, Jianchun and Sun, Baojiang and Chen, Bailian},
abstractNote = {Numerical simulation considering complex fracture networks in tight oil reservoir becomes a hot issue during these years. Recently, embedded discrete fracture model (EDFM) shows great advantages over the DFM approaches in both calculation efficiency and simplicity of simulation workflow. EDFM has been widely used in tight oil/gas natural energy or enhanced oil recovery (EOR) development. If a large number of small-scale natural fractures exist in reservoir, the calculation efficiency of EDFM method may decrease. A new hybrid simulation model combining the EDFM and dual porosity (DP) model is proposed. The large-scale fractures are dealt with EDFM method while small scale fractures are dealt with DP model. Considering the low permeability of matrix, transient transfer between matrix and natural fracture is considered. The proposed hybrid model is validated compared with the local grid refinement (LGR) model and EDFM-MINC model, and the difference between transient transfer and pseudo-steady-state transfer effect on production is presented. Finally, two test cases are presented, and the sensitivity of some key parameters are investigated. Result shows that the new simulation model has higher calculation efficiency than LGR and EDFM-MINC models. Meanwhile, it honors a good accuracy. The pseudo-steady-state transfer between matrix and natural fracture leads to big error in tight oil production performance analysis both in single phase and two phases flow. Low matrix permeability and big matrix size increase the production difference between pseudo-steady-state transfer and transient transfer models. The proposed model can simulate reservoirs considering stochastic permeability distribution.},
doi = {10.1016/j.petrol.2018.10.094},
journal = {Journal of Petroleum Science and Engineering},
number = ,
volume = 174,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: Connections in embedded discrete fracture model

Save / Share:

Works referenced in this record:

Numerical study of complex fracture geometry effect on two-phase performance of shale-gas wells using the fast EDFM method
journal, May 2018


Simulation of Transient Matrix-Fracture Transfers of Compressible Fluids
journal, July 2016


Practical Solutions for Pressure-Transient Responses of Fractured Horizontal Wells in Unconventional Shale Reservoirs
journal, December 2011

  • Brown, M. .; Ozkan, E. .; Raghavan, R. .
  • SPE Reservoir Evaluation & Engineering, Vol. 14, Issue 06
  • DOI: 10.2118/125043-PA

Modeling 2D and 3D Horizontal Wells Using CVFA
journal, January 2003

  • Chen, Zhangxin; Huan, Guanren; Li, Baoyan
  • Communications in Mathematical Sciences, Vol. 1, Issue 1
  • DOI: 10.4310/CMS.2003.v1.n1.a3

Simulation of planar hydraulic fractures with variable conductivity using the embedded discrete fracture model
journal, May 2017

  • Cavalcante Filho, Jose Sergio de Araujo; Sepehrnoori, Kamy
  • Journal of Petroleum Science and Engineering, Vol. 153
  • DOI: 10.1016/j.petrol.2017.03.049

Methodology for geomechanically controlled transmissibility through active natural fractures in reservoir simulation
journal, November 2016

  • de Sousa Junior, Luis Carlos; dos Santos, Luiz Otávio Schmall; de Souza Rios, Victor
  • Journal of Petroleum Science and Engineering, Vol. 147
  • DOI: 10.1016/j.petrol.2016.04.040

Gravity-driven flow of Herschel–Bulkley fluid in a fracture and in a 2D porous medium
journal, May 2017

  • Di Federico, V.; Longo, S.; King, S. E.
  • Journal of Fluid Mechanics, Vol. 821
  • DOI: 10.1017/jfm.2017.234

Design and optimization of shale gas energy systems: Overview, research challenges, and future directions
journal, November 2017


An optimization framework for the integration of water management and shale gas supply chain design
journal, September 2016


Experimental study and numerical simulation of hydraulic fracturing tight sandstone reservoirs
journal, November 2015


Effects of Fracture Boundary Conditions on Matrix-fracture Transfer Shape Factor
journal, July 2006


Shape factor in the drawdown solution for well testing of dual-porosity systems
journal, November 2009


Modeling interporosity flow functions and shape factors in low-permeability naturally fractured reservoir
journal, July 2017


Hybrid Coupled Discrete-Fracture/Matrix and Multicontinuum Models for Unconventional-Reservoir Simulation
journal, June 2016

  • Jiang, Jiamin; Younis, Rami M.
  • SPE Journal, Vol. 21, Issue 03
  • DOI: 10.2118/178430-PA

An improved projection-based embedded discrete fracture model (pEDFM) for multiphase flow in fractured reservoirs
journal, November 2017


An Efficient Discrete-Fracture Model Applicable for General-Purpose Reservoir Simulators
journal, June 2004

  • Karimi-Fard, M.; Durlofsky, L. J.; Aziz, K.
  • SPE Journal, Vol. 9, Issue 02
  • DOI: 10.2118/88812-PA

Numerical Simulation of Water-Oil Flow in Naturally Fractured Reservoirs
journal, December 1976

  • Kazemi, H.; Merrill, L. S.; Porterfield, K. L.
  • Society of Petroleum Engineers Journal, Vol. 16, Issue 06
  • DOI: 10.2118/5719-PA

Hierarchical modeling of flow in naturally fractured formations with multiple length scales
journal, March 2001

  • Lee, S. H.; Lough, M. F.; Jensen, C. L.
  • Water Resources Research, Vol. 37, Issue 3
  • DOI: 10.1029/2000WR900340

Efficient Field-Scale Simulation of Black Oil in a Naturally Fractured Reservoir Through Discrete Fracture Networks and Homogenized Media
journal, August 2008

  • Li, Liyong; Lee, Seong H.
  • SPE Reservoir Evaluation & Engineering, Vol. 11, Issue 04
  • DOI: 10.2118/103901-PA

Effect of Knudsen diffusion and Langmuir adsorption on pressure transient response in tight- and shale-gas reservoirs
journal, December 2014


Composition-Transient Analysis in Shale-Gas Reservoirs With Consideration of Multicomponent Adsorption
journal, April 2016

  • Li, Daolun; Zhang, Longjun; Wang, John Yilin
  • SPE Journal, Vol. 21, Issue 02
  • DOI: 10.2118/178435-PA

Matrix-fracture transfer shape factors for dual-porosity simulators
journal, November 1995


Unsteady Flow of Shear-Thinning Fluids in Porous Media with Pressure-Dependent Properties
journal, September 2015


An embedded fracture modeling framework for simulation of hydraulic fracturing and shear stimulation
journal, November 2015

  • Norbeck, Jack H.; McClure, Mark W.; Lo, Jonathan W.
  • Computational Geosciences, Vol. 20, Issue 1
  • DOI: 10.1007/s10596-015-9543-2

Time-dependent matrix-fracture shape factors for partially and completely immersed fractures
journal, December 2006

  • Rangel-German, Edgar R.; Kovscek, Anthony R.
  • Journal of Petroleum Science and Engineering, Vol. 54, Issue 3-4
  • DOI: 10.1016/j.petrol.2006.08.004

Matrix–fracture transfer shape factor for modeling flow of a compressible fluid in dual-porosity media
journal, May 2011


Effect of fracture pressure depletion regimes on the dual-porosity shape factor for flow of compressible fluids in fractured porous media
journal, December 2011


A quantitative framework for evaluating unconventional well development
journal, July 2018


Development of an Analytical Time-Dependent Matrix/Fracture Shape Factor for Countercurrent Imbibition in Simulation of Fractured Reservoirs
journal, January 2012

  • Saboorian-Jooybari, Hadi; Ashoori, Siavash; Mowazi, Gholamhossein
  • Transport in Porous Media, Vol. 92, Issue 3
  • DOI: 10.1007/s11242-011-9928-1

Compositional Simulation of Hydraulically Fractured Tight Formation Considering the Effect of Capillary Pressure on Phase Behavior
journal, March 2017

  • Siripatrachai, Nithiwat; Ertekin, Turgay; Johns, Russell T.
  • SPE Journal, Vol. 22, Issue 04
  • DOI: 10.2118/179660-PA

Applicability of the shape-factor concept for naturally fractured reservoirs and an alternative approach
journal, June 2017


Explicit Rate–Time Solutions for Modeling Matrix–Fracture Flow of Single Phase Gas in Dual-Porosity Media
journal, February 2012

  • Heidari Sureshjani, Mohammadhossein; Gerami, Shahab; Emadi, Mohammad Ali
  • Transport in Porous Media, Vol. 93, Issue 1
  • DOI: 10.1007/s11242-012-9948-5

Fractured Reservoir Simulation
journal, February 1983

  • Thomas, L. Kent; Dixon, Thomas N.; Pierson, Ray G.
  • Society of Petroleum Engineers Journal, Vol. 23, Issue 01
  • DOI: 10.2118/9305-PA

Advances in improved/enhanced oil recovery technologies for tight and shale reservoirs
journal, December 2017


The Behavior of Naturally Fractured Reservoirs
journal, September 1963

  • Warren, J. E.; Root, P. J.
  • Society of Petroleum Engineers Journal, Vol. 3, Issue 03
  • DOI: 10.2118/426-PA

Applying complex fracture model and integrated workflow in unconventional reservoirs
journal, December 2014


Discrete-Fracture Modeling of Complex Hydraulic-Fracture Geometries in Reservoir Simulators
journal, August 2016

  • Xu, Y. .; Cavalcante Filho, J. S.; Yu, W. .
  • SPE Reservoir Evaluation & Engineering, Vol. 20, Issue 02
  • DOI: 10.2118/183647-PA

Optimal pumping schedule design to achieve a uniform proppant concentration level in hydraulic fracturing
journal, June 2017


A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores
journal, January 2017

  • Zhang, Yuan; Yu, Wei; Sepehrnoori, Kamy
  • Scientific Reports, Vol. 7, Issue 1
  • DOI: 10.1038/srep40507

An efficient numerical model for multicomponent compressible flow in fractured porous media
journal, December 2014


Fracture-Cross-Flow Equilibrium in Compositional Two-Phase Reservoir Simulation
journal, January 2017

  • Zidane, Ali; Firoozabadi, Abbas
  • SPE Journal, Vol. 22, Issue 03
  • DOI: 10.2118/184402-PA

A numerical dual-porosity model with semianalytical treatment of fracture/matrix flow
journal, July 1993

  • Zimmerman, Robert W.; Chen, Gang; Hadgu, Teklu
  • Water Resources Research, Vol. 29, Issue 7
  • DOI: 10.1029/93WR00749

Simulation Study of CO2-EOR in Tight Oil Reservoirs with Complex Fracture Geometries
journal, September 2016

  • Zuloaga-Molero, Pavel; Yu, Wei; Xu, Yifei
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep33445

Works referencing / citing this record:

The simulation of transport processes in cementitious materials with embedded healing systems
journal, December 2019

  • Freeman, Brubeck Lee; Jefferson, Tony
  • International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 44, Issue 2
  • DOI: 10.1002/nag.3017

The Characteristics of Oil Occurrence and Long-Distance Transportation due to Injected Fluid in Tight Oil Reservoirs
journal, December 2019

  • Yang, Liu; Yang, Jun; Gao, Jian
  • Advances in Polymer Technology, Vol. 2019
  • DOI: 10.1155/2019/2707616

Predicting the radial heat transfer in the wellbore of cryogenic nitrogen fracturing: Insights into stimulating underground reservoir
journal, January 2020

  • Song, Weiqiang; Shi, Xian; Wang, Chunguang
  • Energy Science & Engineering, Vol. 8, Issue 3
  • DOI: 10.1002/ese3.479

Flow field characters near fracture entrance in supercritical carbon dioxide sand fracturing
journal, August 2019

  • Song, Weiqiang; Zhang, Junming; Wang, Chunguang
  • Greenhouse Gases: Science and Technology, Vol. 9, Issue 5
  • DOI: 10.1002/ghg.1915