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Keywords: Firoozabadi
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Journal Articles
Journal: SPE Journal
SPE J. 25 (02): 771–787.
Paper Number: SPE-199878-PA
Published: 16 April 2020
...Taniya Kar; Khosrow Naderi; Abbas Firoozabadi Summary Efficient removal of deposited asphaltenes on the surface of metallic flowlines by functional molecules is investigated by nonionic and ionic surfactants at low concentrations. Deposition removal by aromatic solvent toluene is measured...
Journal Articles
Journal: SPE Journal
SPE J. 22 (03): 950–970.
Paper Number: SPE-184402-PA
Published: 03 January 2017
...Ali Zidane; Abbas Firoozabadi Summary Compositional two-phase flow in fractured media has wide applications, including carbon dioxide (CO 2 ) injection in the subsurface for improved oil recovery and for CO 2 sequestration. In a recent work, we used the fracture-crossflow-equilibrium (FCFE...
Journal Articles
Journal: SPE Journal
SPE J. 21 (05): 1747–1754.
Paper Number: SPE-166404-PA
Published: 05 April 2016
...Sara M. Hashmi; Abbas Firoozabadi Summary We describe asphaltene deposition and removal processes in metal capillaries. We induce asphaltene precipitation by adding an asphaltene precipitant, heptane, to a petroleum fluid. The mixture is then injected through a laboratory-scale capillary...
Journal Articles
Journal: SPE Journal
SPE J. 18 (06): 1150–1168.
Paper Number: SPE-159777-PA
Published: 08 August 2013
...Joachim Moortgat; Abbas Firoozabadi Summary We model for the first time capillarity in fully compositional three-phase flow, with higher-order finite-element (FE) methods. Capillary pressure gradients may be an important driving force, particularly in layered or fractured porous media, which...
Journal Articles
Journal: SPE Journal
SPE J. 18 (05): 943–951.
Paper Number: SPE-154218-PA
Published: 29 July 2013
... to these CO 2 /hydrocarbon systems. 28 5 2012 19 5 2013 7 2 2013 29 7 2013 13 4 2012 16 10 2013 Copyright 2013, Society of Petroleum Engineers equation of state Firoozabadi calculation equilibrium calculation PVT measurement Okuno computational time aqueous...
Journal Articles
Journal: SPE Journal
SPE J. 18 (02): 331–344.
Paper Number: SPE-135563-PA
Published: 04 April 2013
...Joachim Moortgat; Abbas Firoozabadi; Zhidong Li; Rogério Espósito Summary In certain high-pressure and low-temperature reservoirs, the density of CO 2 may be substantially higher than the oil density. Upon mixing of CO 2 and oil, a gas phase with a high content of methane (C 1 ) may also appear...
Journal Articles
Journal: SPE Journal
SPE J. 18 (05): 952–959.
Paper Number: SPE-154477-PA
Published: 30 January 2013
... with nonzero BIPs. A better performance can be achieved by a simpler implementation directly using the sparsity of the BIP matrix. 12 3 2012 30 10 2012 24 10 2012 30 1 2013 3 6 2012 16 10 2013 Copyright 2013, Society of Petroleum Engineers Firoozabadi calculation...
Journal Articles
Journal: SPE Journal
SPE J. 17 (04): 1096–1107.
Paper Number: SPE-129844-PA
Published: 28 November 2012
...Zhidong Li; Abbas Firoozabadi Summary Efficient and robust phase equilibrium computation has become a prerequisite for successful large-scale compositional reservoir simulation. When knowledge of the number of phases is not available, the ideal strategy for phase-split calculation is the use...
Journal Articles
Journal: SPE Journal
SPE J. 14 (02): 323–337.
Paper Number: SPE-103292-PA
Published: 31 May 2009
...Hussein Hoteit; Abbas Firoozabadi Summary Diffusion in fractured reservoirs, unlike in unfractured reservoirs, can affect significantly the efficiency of gas injection in oil reservoirs and recycling in gas/condensate reservoirs. The physical diffusion, similar to gravity, results in the change...
Journal Articles
Journal: SPE Journal
SPE J. 12 (04): 397–407.
Paper Number: SPE-96184-PA
Published: 20 December 2007
...Mashhad Fahes; Abbas Firoozabadi Summary Wettability of two types of sandstone cores, Berea (permeability on the order of 600 md), and a reservoir rock (permeability on the order of 10 md), is altered from liquid-wetting to intermediate gas-wetting at a high temperature of 140°C. Previous work...
Journal Articles
Journal: SPE Journal
SPE J. 12 (03): 355–366.
Paper Number: SPE-98108-PA
Published: 19 September 2007
...J. E. P. Monteagudo; A. Firoozabadi Summary The control-volume discrete-fracture (CVDF) model is extended to incorporate heterogeneity in rock and in rock-fluid properties. A novel algorithm is proposed to model strong water-wetting with zero capillary pressure in the fractures. The extended method...
Journal Articles
Journal: SPE Journal
SPE J. 11 (03): 341–352.
Paper Number: SPE-90277-PA
Published: 19 September 2006
...H. Hoteit; A. Firoozabadi Summary In a recent work, we introduced a numerical approach that combines the mixed-finite-element (MFE) and the discontinuous Galerkin (DG) methods for compositional modeling in homogeneous and heterogeneous porous media. In this work, we extend our numerical approach...
Journal Articles
Journal: SPE Journal
SPE J. 8 (04): 401–408.
Paper Number: SPE-87333-PA
Published: 01 December 2003
...Dimo Kashchiev; Abbas Firoozabadi Summary Analytical solutions for the initial stage of 1D countercurrent flow of water and oil in porous media are presented. Expressions are obtained for the time dependence of the water saturation profile and the oil recovered during spontaneous countercurrent...
Journal Articles
Journal: SPE Journal
SPE J. 8 (02): 114–123.
Paper Number: SPE-84953-PA
Published: 01 June 2003
...Kassem Ghorayeb; Abbas Firoozabadi; Toshiyuki Anraku Summary It is generally believed that at steady state, a heavy fluid mixture cannot float, without motion, at the top of a light fluid mixture in a cavity. The expectation is that because of pressure diffusion, segregation occurs with the light...
Journal Articles
Journal: SPE Journal
SPE J. 5 (04): 456–465.
Paper Number: SPE-67952-PA
Published: 01 December 2000
...Eric Chang; Abbas Firoozabadi Summary Total compressibility in a fractured reservoir is estimated using the pressure response due to gravitational potential variations. Both the lunar and the solar gravitational potentials are fully accounted for by inclusion of longer-period components...
Journal Articles
Journal: SPE Journal
SPE J. 5 (02): 158–171.
Paper Number: SPE-62168-PA
Published: 01 June 2000
...Kassem Ghorayeb; Abbas Firoozabadi Summary Numerical investigations of diffusion and convection in multicomponent hydrocarbon mixtures in two-dimensional (2D) crosssectional ( x , z ) porous media are performed using the finite-volume method. Spatial discretization is performed by a second-order...
Journal Articles
Journal: SPE Journal
SPE J. 5 (01): 3–11.
Paper Number: SPE-38443-PA
Published: 01 March 2000
...Mehran Pooladi-Darvish; Abbas Firoozabadi Summary Imbibition in water-wet matrix blocks of fractured porous media is commonly considered to be countercurrent. The modeling studies of this paper indicate that when a matrix block is partially covered by water, oil recovery is dominated by cocurrent...
Journal Articles
Journal: SPE Journal
SPE J. 5 (01): 12–20.
Paper Number: SPE-51347-PA
Published: 01 March 2000
...Kassem Ghorayeb; Abbas Firoozabadi Summary Compositional variation in a rectangular two-dimensional ( x,z ) fractured porous medium containing a two-component singlephase fluid in the presence of a prescribed linear temperature field is considered. The work examines the effect of the fracture...
Journal Articles
Journal: SPE Journal
SPE J. 4 (02): 134–141.
Paper Number: SPE-56854-PA
Published: 01 June 1999
...Ivan E. Terez; Abbas Firoozabadi Summary This study examines water injection in water-wet fractured porous media and its modeling using the Buckley–Leverett theory. New experimental data on water injection in Berea and Austin chalk matrix block(s) are presented. Water injection in Austin chalk...
Journal Articles
Journal: SPE Journal
SPE J. 3 (02): 134–145.
Paper Number: SPE-38434-PA
Published: 01 June 1998
... prediction fraction interfacial tension Firoozabadi crude oil system Parachor Model srk eos equation of state ift pressure isotherm experiment SLGT model IFT data ift Upstream Oil & Gas enhanced recovery experimental ift data number density pvt measurement influence parameter co 2...

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