Mechanistic simulation of continuous gas injection period during surfactant-alternating-gas (SAG) processes using foam catastrophe theory

Afsharpoor, Ali; Lee, G.S.; Kam, Seung Ihl

doi:10.1016/j.ces.2010.03.001

Cited by 67 publications

(27 citation statements)

References 39 publications

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“…Recent studies have shown that foam rheology in porous media can be characterised by foam catastrophe theory, which exhibits three foam states (weakfoam, strong-foam and intermediate states) and two strong foam regimes (high-quality and low-quality) (Afsharpoor et al, 2010).…”

Section: Foam Behaviourmentioning

confidence: 99%

Testing of Snorre Field Foam Assisted Water Alternating Gas (FAWAG) Performance in New Foam Screening Model

Spirov

Rudyk

2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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and available online here Cet article fait partie du dossier thématique ci-dessous publié dans la revue OGST, Vol. 70, n°6, pp. 909-1132 et téléchargeable ici D o s s i e rOil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 70 (2015), No. 6, pp. 909-1132 Copyright © 2015, IFP Energies nouvelles > Editorial -Enhanced Oil Recovery (EOR), Asphaltenes and HydratesÉditorial -EOR «récupération assistée du pétrole», Asphaltènes et Hydrates D. Langevin and F. Baudin ENHANCED OIL RECOVERY (EOR) > HP-HT Drilling Mud Based on Environmently-Friendly Fluorinated ChemicalsBoues de forage HP/HT à base de composés fluorés respectueux de l'environnement Abstract -Eclipse Functional Foam Model was used in order to provide a guideline for the history matching process (Gas-Oil Ratio (GOR), oil and gas production rates) to the Foam Assisted Water Alternating Gas method in the Snorre field, Norway, where the surfactant solution was injected in two slugs to control gas mobility and prevent gas breakthrough. The simulation showed that the first short slug was not efficient while significant GOR decrease and incremental oil production was obtained after the second longer slug in some periods. This study shows that the Eclipse foam model is applicable to the planning of water and gas injections, the testing of various surfactant properties, and the evaluation of the efficiency of the method at the field scale.Re´sume´-Ve´rification des performances de la me´thode FAWAG (Foam Assisted Water Alternating Gas) sur le champ de Snorre, en Norve`ge, avec un nouveau mode`le de se´lection des mousses -Le mode`le É clipse "Functional Foam" a e´te´utilise´pour guider le processus de calage des donne´es de production (rapport gaz-huile, de´bits d'huile et de gaz) du champ Snorre, en Norve`ge, dans le cas d'une exploitation par une me´thode d'injection alterne´e d'eau et de gaz avec mousse. La solution d'agents tensioactifs a e´te´injecte´e en deux bouchons afin de controˆler la mobilite´du gaz et d'empeˆcher la perce´e de gaz. La simulation a permis d'observer que le premier bouchon n'e´tait pas suffisamment efficace, alors qu'une diminution significative du rapport gaz/huile et qu'une augmentation importante de la production en huile e´taient constate´es apre`s le second bouchon pour certaines pe´riodes. Cette e´tude de´montre que le mode`le É clipse de´die´aux mousses, permet de planifier les injections d'eau et de gaz, de tester les diffe´rentes proprie´te´s des tensioactifs et d'e´valuer l'efficacite´de la me´thode a`l'e´chelle d'un champ pe´trolier.

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Section: Foam Behaviourmentioning

confidence: 99%

Testing of Snorre Field Foam Assisted Water Alternating Gas (FAWAG) Performance in New Foam Screening Model

Spirov

Rudyk

2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…This and related models (cf. Kam and Rossen 2003;Kam et al 2007;Kam 2008;Afsharpoor et al 2010) are the only ones available now that describe multiple foam states and the phenomenon of foam generation with increasing superficial velocity. Moreover, Kam developed his model to remedy an instability in an earlier version.…”

Section: Nonlinear Stability Of Le States In Kam's Modelmentioning

confidence: 99%

“…Friedmann et al (1991) fit the jump to strong foam with a population-balance model where lamella creation requires exceeding a minimum ∇P: the model is discontinuous at this value of ∇P. More recently, the only foam models to represent the multiple LE states for foam are variants of the population-balance model of Kam and Rossen (2003) (Kam et al 2007;Kam 2008;Afsharpoor et al 2010), where creation of lamellae depends on pressure gradient ∇P. (In this article, ∇P represents the magnitude of pressure gradient, not a vector quantity.)…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Uniform Equilibrium Foam States for EOR Processes

2011

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Instabilities may rule out one or more states and consequently have considerable effect on reservoir sweep efficiency and injection pressure. Here, for the first time the stability of the various equilibrium foam states is investigated by an analytical stability-analysis method together with numerical simulations. We demonstrate the instability of most intermediate states, consistent with the laboratory observations. However, our analysis reveals an instability of the strong-foam state. We show that the diffusion, whether introduced artificially by the finite-difference scheme or representing physical dispersion, damps this instability. We obtain good agreement with finite-element simulations with and without additional diffusion. We also prove that all states are unconditionally stable for a local-equilibrium-foam model.

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“…There are several models for foam flow through porous media in literature, which includes models with explicit relations for foam generation and destruction (population balance models) and models with implicit relations to track the foam texture (Afsharpoor et al, 2010;Bertin et al, 1998;Chang et al, 1990;Chen et al, 2010;Cheng et al, 2000;CMG, 2011;Ettinger and Radke, 1992;Falls et al, 1988;Friedmann et al, 1991;Islam and Ali, 1988;Kam and Rossen, 2003;Li et al, 2006;Martinsen and Vassenden, 1999;Namdar Zanganeh and Rossen, 2013;Vassenden and Holt, 2000;Zhou and Rossen, 1995;Zitha and Du, 2010). We used local equilibrium or implicit texture (Lotfollahi et al, 1999) foam model, i.e., that of the STARS simulator (Cheng et al, 2000;CMG, 2011;Martinsen and Vassenden, 1999).…”

Section: Foam Behavior -Implicit-texture (It) Foam Modelmentioning

confidence: 99%

Fall-Off Test Analysis and Transient Pressure Behavior in Foam Flooding

Gargar

Mahani²,

Rehling³

et al. 2015

Proceedings

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SUMMARYGas injection projects often suffer from poor volumetric sweep because under reservoir conditions the density and viscosity differences between the gas and the in-situ oil leads to override and bypassing of much of the oil in place. Foam has been suggested as a potential solution to this shortcoming and has shown success in some of the field applications. In the field scale foam can reduce the gas mobility, fight against gravity by inducing excess viscous forces and reduce the gas-oil ratio in the producer. Nevertheless, foam propagation in the reservoir, with low fluid velocities, and survival of foam in the path from injector to producer are among major uncertainties in foam projects. This necessitates the design of surveillance plans to monitor foam rheology and its propagation in porous media. Usually foam generation inside a porous medium is indirectly inferred from the pressure response; once foam is generated in the reservoir the pressure increases. Foam frequently exhibits non-Newtonian (shearthinning) behaviour, as it is propagated through the porous medium, which can influence the pressure transient test behaviour. This paper studies different well testing interpretation and pressure behaviour of foam flow in a homogenous reservoir. Local-equilibrium or implicit-texture foam model (that of STARS) are used to model the foam behaviour in porous media. Pressure fall-off test behaviour presented in this paper is new for foam injection. The flow regimes including inclined radial flow, radial flow, transient section, and reservoir boundary are discussed. A method which uses a pressure and a pressure derivative plot is developed for foam injection so that the mobility changes, flow behaviour index, location of foam front, reservoir parameters and reservoir boundary can be estimated. The results of this study can be used to analyse data from injection well, where monitoring of the generation, stability and distribution of foam is a key factor in the success of a foam field project. This paper discuss the dependency of the results on foam-model parameters, which indicates that by using pressure transient data one can obtain the foam model parameter.

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Mechanistic simulation of continuous gas injection period during surfactant-alternating-gas (SAG) processes using foam catastrophe theory

Cited by 67 publications

References 39 publications

Testing of Snorre Field Foam Assisted Water Alternating Gas (FAWAG) Performance in New Foam Screening Model

Testing of Snorre Field Foam Assisted Water Alternating Gas (FAWAG) Performance in New Foam Screening Model

Stability Analysis of Uniform Equilibrium Foam States for EOR Processes

Fall-Off Test Analysis and Transient Pressure Behavior in Foam Flooding

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