Abstract
This paper presents an experimental and numerical study to investigate the hydrodynamics behavior of the fractured and nonfractured cores. The comparison between the simulated and experiments result is also presented. In this work, the Element Based Finite Volume Method (EbFVM) was used according to the Dual Porosity Dual Permeability Model (DPDP). The behavior of single-phase fluid flow in actual cores was studied for a fractured reservoir in Iraqi fields from Rumaila/Mishrif formation at different depths. ANSYS-CFX, a finite element based simulator was used to represent the pressure and velocity distributions. Therefore, the comparison between a fractured core and a nonfractured core was performed. The representation of fluid flow behavior in a fractured reservoir was presented. It is found that the presence of cracks increase the percentage of improvement in the productivity index to reach about (6.59% and 10.46%) for Rumaila core 14 and Rumaila core 15, respectively.
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Abbreviations
- k:
-
Permeability [Darcy]
- s:
-
The phase saturation
- \( {\overline{P}}_R \) :
-
Average reservoir pressure [psi]
- Pwf :
-
Bottomhole pressure [psi]
- ∇P :
-
Pressure drop [psi]
- kr :
-
Relative permeability
- g:
-
Gravity acceleration vector [ft/s2]
- u:
-
Phase flux [ft/s]
- qm-f :
-
Volumetric flux from the matrix domain to the fracture domain [1/s]
- qf-m :
-
Volumetric flux from the fracture domain to the matrix domain [1/s]
- t:
-
Time [s]
- J:
-
Productivity index [BBl/psi Day]
- qo :
-
Oil flow rate [BBl/Day]
- ψ :
-
Volumetric source term [1/s]
- ϕ :
-
Porosity [-]
- ρ :
-
The density of fluid [kg/m3]
- μ :
-
Dynamic viscosity [cp]
- f:
-
Fracture
- m:
-
Matrix
References
Adams AR, Ramey HJ Jr, Burgess RJ (1968) Gas well testing in a fractured carbonate reservoir. J Pet Technol 20(10):1–187
Adelu AO, Aderemi AA, Akanji AO, Sanuade OA, Kaka SI, Afolabi O, Olugbemiga S, Oke R (2019) Application of 3D static modeling for optimal reservoir characterization. J Afr Earth Sci 152:184–196. https://doi.org/10.1016/j.jafrearsci.2019.02.014
Al-Mimar HS, Awadh SM, Al-Yaseri AA, Yaseen ZM (2018) Sedimentary units-layering system and depositional model of the carbonate Mishrif reservoir in Rumaila oilfield, Southern Iraq. Model Earth Syst Environ 4:1449–1465. https://doi.org/10.1007/s40808-018-0510-5
Al-Mukhtar AM (2014) Performance of the Subsurface Hydraulics in a Doublet System Using the ThermoGIS Calculator. J Geography Geol 6(3):90. https://doi.org/10.5539/jgg.v6n3p90
Al-Mukhtar AM (2017) Fracturing in HDR Geothermal System. Advanced Engineering Forum 20: 57–60. https://doi.org/10.4028/www.scientific.net/AEF.20.57
Al-Mukhtar AM, Merkel B (2015) Simulation of the crack propagation in rocks using fracture mechanics approach. J Fail Anal Prev 15(1):90–100. https://doi.org/10.1007/s11668-014-9907-2
Civan, F. (2016). Alteration of the porosity and permeability of geologic formations—basic and advanced relationships. In F. B. T.-R. F. D. (Third E. Civan (Ed.), Reservoir Formation Damage (pp. 51–76). Elsevier. https://doi.org/10.1016/B978-0-12-801898-9.00004-7
Guo B, Tao Y, Bandilla K, Celia M (2017) Vertically integrated dual-porosity and dual-permeability models for CO2 sequestration in fractured geological formation. Energy Procedia 114:3343–3352. https://doi.org/10.1016/j.egypro.2017.03.1466
Guo B (2019) Well Productivity Handbook. Elsevier. https://doi.org/10.1016/C2018-0-03220-X
Islam MA, Yunsi M, Qadri SMT, Shalaby MR, Haque AKME (2021) Three-Dimensional Structural and Petrophysical Modeling for Reservoir Characterization of the Mangahewa Formation, Pohokura Gas-Condensate Field, Taranaki Basin, New Zealand. Nat Resour Res 30(1):371–394. https://doi.org/10.1007/s11053-020-09744-x
Kazemi H. (1969) Pressure transient analysis of naturally fractured reservoirs with pressure transient analysis of naturally fractured reservoirs with uniform fracture distribution. Soc Petrol Eng J.
Li W, Dong Z, Lei G (2017) Integrating EDFM and Dual Porosity Method to Simulate Fluid Flow in Shale Oil Reservoir. SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. https://doi.org/10.2118/186293-MS
Mahdi TA, Aqrawi AAM, Horbury AD (2013) Sedimentological characterization of the mid-Cretaceous Mishrif reservoir in southern Mesopotamian Basin, Iraq. GeoArabia 18(1):139–174 https://pubs.geoscienceworld.org/geoarabia/article/18/1/139/567063/Sedimentological-characterization-of-the-mid
Majeed AJ, Alshara AK, Al-Mukhtar AM, Abood FA (2020) Fracturing parameters in petroleum reservoirs and simulation. In Lecture Notes in Mechanical Engineering (pp. 491–498). https://doi.org/10.1007/978-981-13-8297-0_51
Matthews C. dam DGR (1967) Pressure Buildup and Flow Tests in Wells. Society of Petroleum Engineers of AIME.
Odeh AS (1965) Unsteady-state behavior of naturally fractured reservoirs. Soc Pet Eng J 5(01):60–66. https://doi.org/10.2118/966-PA
Pickett GR, Reynolds EB (1969) Evaluation of fractured reservoirs. Soc Pet Eng J 9(01):28–38
Qadri SMT, Islam MA, Shalaby MR (2019) Application of well log analysis to estimate the petrophysical parameters and evaluate the reservoir quality of the Lower Goru Formation, Lower Indus Basin, Pakistan. Geomech Geophys Geo-Energy Geo-Resour 5(3):271–288. https://doi.org/10.1007/s40948-019-00112-5
Qadri SMT, Islam MA, Shalaby MR, Ali SH (2020a) Integration of 1D and 3D modeling schemes to establish the Farewell Formation as a self-sourced reservoir in Kupe Field, Taranaki Basin, New Zealand. Front Earth Sci. https://doi.org/10.1007/s11707-020-0839-8
Qadri SMT, Islam MA, Shalaby MR, El-Aal AKA (2020b) Reservoir quality evaluation of the Farewell sandstone by integrating sedimentological and well log analysis in the Kupe South Field, Taranaki Basin-New Zealand. J Pet Explor Prod Technol 11:11–31. https://doi.org/10.1007/s13202-020-01035-8
Soleimani M (2017) Naturally fractured hydrocarbon reservoir simulation by elastic fracture modeling. Pet Sci 14(2):286–301. https://doi.org/10.1007/s12182-017-0162-5
Warren JE, Root PJ (1963) The Behavior of Naturally Fractured Reservoirs. Soc Pet Eng J 3(03):245–255. https://doi.org/10.2118/426-PA
Xiu e G (2003) Relation between the productivity and the degree of development of the fractures in low porosity and low permeability sandshale reservoirs. Nat Gas Ind 23(5):41–43
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Majeed, A.J., Al-Mukhtar, A., Abood, F.A. et al. Numerical study of the natural fracture using dual porosity-dual permeability model for Rumaila Field, southern Iraq. Arab J Geosci 14, 1828 (2021). https://doi.org/10.1007/s12517-021-08229-2
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DOI: https://doi.org/10.1007/s12517-021-08229-2