Pressure drawdown well tests in fractured porous media

Bogdanov, I.; Mourzenko, V. V.; Thovert, Jean‐François; Adler, P. M.

doi:10.1029/2000wr000080

Cited by 37 publications

(26 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The article by Bogdanov et al (2003) is also significant to be mentioned here. They have used a three-dimensional single-phase numerical model based on a discrete fracture representation to simulate pressure transient tests in discretely and randomly fractured reservoirs.…”

Section: Sugar Cube Representation Actual Reservoirmentioning

confidence: 98%

“…Since 1960s a considerable amount of work, as referenced above, has been done on faulted and fractured reservoirs, including analytical, semianalytical, and numerical solutions for both finite and infinite fault and fracture conductivities. On the other hand, there are very few pressure transient solutions available for discretely faulted and fractured reservoirs with an arbitrary number and position of conductive faults and/or fractures (Bogdanov et al 2003). For simplicity, we call reservoirs containing an arbitrary distribution of finite-and/or infinite-conductivity faults and/or fractures discretely fractured network (DFN) or discretely fractured reservoirs.…”

Section: Mathematical Models For Reservoirs With Discrete Fractures Amentioning

confidence: 99%

See 1 more Smart Citation

Transient Pressure Behavior of Reservoirs with Discrete Conductive Faults and Fractures

Biryukov

Kuchuk

2012

Transp Porous Med

View full text Add to dashboard Cite

Fractures and faults are common features of many well-known reservoirs. They create traps, serve as conduits to oil and gas migration, and can behave as barriers or baffles to fluid flow. Naturally fractured reservoirs consist of fractures in igneous, metamorphic, sedimentary rocks (matrix), and formations. In most sedimentary formations both fractures and matrix contribute to flow and storage, but in igneous and metamorphic rocks only fractures contribute to flow and storage, and the matrix has almost zero permeability and porosity. In this study, we present a mesh-free semianalytical solution for pressure transient behavior in a 2D infinite reservoir containing a network of discrete and/or connected finite-and infinite-conductivity fractures. The proposed solution methodology is based on an analytical-element method and thus can be easily extended to incorporate other reservoir features such as sealing or leaky faults, domains with altered petrophysical properties (for example, fluid permeability or reservoir porosity), and complicated reservoir boundaries. It is shown that the pressure behavior of discretely fractured reservoirs is considerably different from the well-known Warren and Root dual-porosity reservoir model behavior. The pressure behavior of discretely fractured reservoirs shows many different flow regimes depending on fracture distribution, its intensity and conductivity. In some cases, they also exhibit a dual-porosity reservoir model behavior.

show abstract

Section: Sugar Cube Representation Actual Reservoirmentioning

confidence: 98%

Section: Mathematical Models For Reservoirs With Discrete Fractures Amentioning

confidence: 99%

Transient Pressure Behavior of Reservoirs with Discrete Conductive Faults and Fractures

Biryukov

Kuchuk

2012

Transp Porous Med

View full text Add to dashboard Cite

show abstract

“…Il est cependant difficile de déterminer la taille minimale du VER et de montrer qu'elle vérifie le critère de validité de l'approche. Ceci requiert typiquement un appareillage important faisant intervenir plusieurs puits d'observations positionnés à différentes distances et orientations par rapport à la source (Wang et al, 2002 Le développement récent des modèles numériques discrets procure un nouvel essor à cette approche (Cacas et al, 1990 ;Nordqvist et al, 1992 ;lourde et al, 2002aet 2002b, rendu possible notamment par l'augmentation de la capacité de calcul d'ordinateurs pouvant supporter les maillages complexes requis pour le développement de modèles tridimensionnels aux éléments finis (Therrien et Sudicky, 1996 ;Bogdanov et al, 2003 Andersson, 1989 ;Fanay-Augères, France, Cacas et al, 1990 ; Rosemanowes, Royaume-Uni, Olkiluoto, Finland, Vaittinen et Ahokas, 2004 ;projet SKB, Suède, Ludvigson et al, 2004).…”

Section: Modèles Continus Versus Modèles Discretsunclassified

“…Ces codes sont aussi utilisés de manière expérimentale dans le cadre de simulations stochastiques sur des réseaux synthétiques visant à analyser les relations entre les propriétés géométriques et les propriétés hydrauliques locales et globales d'un réseau de fractures bidimensionel et tridimensionnel (Jourde et al, 2002b ;Bogdanov et al, 2003). La présente étude s'inscrit dans ce type de démarche.…”

Section: Modèles Continus Versus Modèles Discretsunclassified

Comportement hydraulique des milieux faillés /

Rafini¹

2008

View full text Add to dashboard Cite

UIUQAC Mise en garde/AdviceAfin de rendre accessible au plus grand nombre le résultat des travaux de recherche menés par ses étudiants gradués et dans l'esprit des règles qui régissent le dépôt et la diffusion des mémoires et thèses produits dans cette Institution, l'Université du Québec à Chicoutimi (UQAC) est fière de rendre accessible une version complète et gratuite de cette oeuvre.Motivated by a desire to make the results of its graduate students' research accessible to all, and in accordance with the rules governing the acceptation and diffusion of dissertations and theses in this Institution, the Université du Québec à Chicoutimi (UQAC) is proud to make a complete version of this work available at no cost to the reader.L'auteur conserve néanmoins la propriété du droit d'auteur qui protège ce mémoire ou cette thèse. Ni le mémoire ou la thèse ni des extraits substantiels de ceux-ci ne peuvent être imprimés ou autrement reproduits sans son autorisation.The author retains ownership of the copyright of this dissertation or thesis. Neither the dissertation or thesis, nor substantial extracts from it, may be printed or otherwise reproduced without the author's permission. LISTE DES TABLEAUX Ce modèle reproduit efficacement les signaux transmis par les milieux discontinus, toutefois sa signification physique est incertaine et les conditions hydrodynamiques associées au développement de dimensions non-radiales demeurent énigmatiques. Il en résulte une très faible applicabilité du modèle GRF malgré le très fort potentiel diagnostique renfermé par le paramètre n. On montre que ce paramètre décrit l'évolution géométrique de l'équipotentielle frontale au cours du test hydraulique transitoire. Le comportement non-radial serait donc produit par tout système dont la géométrie -ou les propriétés hydrauliques -produisent une évolution transitoire de cette surface admettant des modifications de forme progressives et régulières. On peut s'attendre à ce que ce phénomène soit engendré par les interactions transitoires entre une faille et sa matrice.Le premier volet de cette thèse se consacre à la vérification de cette hypothèse. La production de comportements non-radiaux n = 1,5 par le discontinuum faille verticale-matrice est démontrée par la modélisation numérique tridimensionnelle aux éléments finis. L'outil numérique a permis de contraindre quantitativement les conditions hydrodynamiques associées à ce comportement.

show abstract

“…[7] Flow of compressible and slightly compressible fluids (water or oil) in fractured reservoirs has been studied extensively with applications in prediction of production rates and well testing [Warren and Root 1963;Kazemi et al, 1976;Zimmerman et al, 1993Zimmerman et al, , 1996Civan and Rasmussen, 2002;Penuela et al, 2002;Bogdanov et al, 2003;Lu and Connel, 2007;van Heel et al, 2008;Mora and Wattenbarger, 2009;Hassanzadeh et al, 2009;Ranjbar and Hassanzadeh, 2010;Mourzenko et al, 2011;Ranjbar et al, 2012;Ye and Ayala, 2012]. As an example, Hoteit and Firoozabadi [2005] developed a discrete fracture model to simulate the flow of compressible fluids in homogeneous, heterogeneous and fractured porous media.…”

Section: Introduction and Previous Studiesmentioning

confidence: 99%

Semianalytical solutions for release of fluids from rock matrix blocks with different shapes, sizes, and depletion regimes

Ranjbar

Chen

2013

Water Resources Research

View full text Add to dashboard Cite

[1] Dual-porosity (DP) models have been extensively used to simulate the flow of fluids (water or gas) in aggregate soils and fractured porous media. The fluid exchange between the rock matrix blocks and the fracture network is very important in DP models. In this study, we present semianalytical solutions for release of a single-phase liquid or gas from cylindrical and spherical matrix blocks with various block size distributions and different pressure depletion regimes in the fracture. The nonlinear pressure diffusivity equations for flow of gas and air are solved analytically using an approximate integral method. It is shown that this solution can be simplified to model flow of slightly compressible fluids like water in DP media. The effect of variable block size distribution on the release rate for different block geometries is studied. Practically it is not feasible to model a large-scale fractured reservoir based on a fine grid approach due to the requirement of large computational time. The presented semianalytical model can be incorporated into numerical models for accurate modeling of the amount of transferred fluid between matrix and fractures using a DP approach. It is shown that the results calculated by the developed model match well with those from fine grid numerical simulations. Furthermore, the developed model can recover the available solutions in the literature for slightly compressible fluids such as water or oil. It can be used to calculate two-or threedimensional flows in matrix blocks bounded by two or three sets of fractures, respectively.Citation: Ranjbar, E., H. Hassanzadeh, and Z. Chen (2013), Semianalytical solutions for release of fluids from rock matrix blocks with different shapes, sizes, and depletion regimes, Water Resour.

show abstract

Pressure drawdown well tests in fractured porous media

Cited by 37 publications

References 28 publications

Transient Pressure Behavior of Reservoirs with Discrete Conductive Faults and Fractures

Transient Pressure Behavior of Reservoirs with Discrete Conductive Faults and Fractures

Comportement hydraulique des milieux faillés /

Semianalytical solutions for release of fluids from rock matrix blocks with different shapes, sizes, and depletion regimes

Contact Info

Product

Resources

About