On a Well-Test Pressure Theory of Analysis for Naturally Fractured
Reservoirs, Considering Transient Interporosity Matrix, Microfractures, Vugs,
and Fractures Flow

Pulido, Héctor; Samaniego, Fernando; Rivera, Jesús; Díaz, Felipe Rafael Valle; Galicia, Guadalupe

doi:10.2523/104076-ms

Cited by 4 publications

(4 citation statements)

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“…Different carbonate reservoirs have different development degrees of fracture and vug (Mai and Kantzas 2007), so different carbonate reservoirs have different fluid dynamics, and a task of researchers is establishing various test models supplied to users to evaluate the properties of the underground reservoir. So far, there are many theoretical models for the flow of underground oil in multiple media reservoirs (Braester 1984, Abdassah and Ershaghi 1986, Jalali and Ershaghi 1987, Al-Ghamdi and Ershaghi 1996, Bui et al 2000, Camacho-Vela´zquez et al 2005, Pulido et al 2006, Gua and Chalaturnyk 2010, and although there are many papers about the dual media reservoir and triple media reservoir, in their papers, the manner of interporosity flow is pseudo-steady for both matrix to fracture and vugs to fracture, and the shape of the matrix and vug may be arbitrary because the governing equation of the matrix and vug for pseudo-steady inter-porosity flow has no relationship with the coordinate r. In addition, there are some papers about the unsteady inter-porosity flow (Warren and Root 1963, Bourdet and Gringarten 1980, Wijesinghe and Culham 1984, Wijesinghe and Kececioglu 1985, Rasmussen and Civan 2003, Izadi and Yildiz 2007. In their papers, the research object is the dual media reservoirs.…”

Section: Introductionmentioning

confidence: 99%

New flow model for the triple media carbonate reservoir

Nie

Meng

Yang

et al. 2011

International Journal of Computational Fluid Dynamics

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A new flow model in triple media carbonate reservoir is established. There exists a triple total system including the matrix, fracture and vug subsystem, and the three subsystems are relatively independent in physical properties; in the process of oil flow, the inter-porosity flow of the vug subsystem to fracture subsystem would occur and the interporosity flow of the matrix subsystem to fracture subsystem would also occur and ignore the inter-porosity flow between the matrix subsystem and vug subsystem. Compared with the traditional model (the inter-porosity flow of vug to fracture is pseudo-steady), the new model considers the unsteady inter-porosity flow, based on the hypothesis that the shape of vug is spherical. The new model is illustrated and solved, and the standard type curves are drawn up, so the process and characteristics of flow are analysed thoroughly, and it is found that the new-style type curves in shape and characteristics are evidently different from the type curves of traditional model. The research would not only deepen the understanding of flow law but also enrich the theoretical models for carbonate reservoir. The research results on this new model could be applied to a real case study.

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Section: Introductionmentioning

confidence: 99%

New flow model for the triple media carbonate reservoir

Nie

Meng

Yang

et al. 2011

International Journal of Computational Fluid Dynamics

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“…[33–35] investigated a triple continuum pressure transient model for a naturally fractured vuggy reservoir, and Pulido et al. [22] established a well‐test pressure theory of analysis for naturally fractured reservoirs, considering transient interporosity matrix, micro fractures, vugs, and fractures flow, Cai et al. [4] investigated dynamic analysis for pressure in limit conductivity vertical fracture wells of triple‐porosity reservoir, Nie et al.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of oil‐water two‐phase flow for a multiple‐fractured horizontal well with multiple finite‐conductivity fractures in triple media carbonate reservoir

et al. 2020

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Carbonate reservoir is one of the important reservoir in the world. Because of the characteristics of carbonate reservoir, horizontal well and acid fracturing have become a key technology for efficiently developing carbonate reservoir. Establishing corresponding mathematical models and analyzing transient pressure behaviors of this type of well‐reservoir configuration can provide a better understanding of fluid flow patterns in formation as well as estimations of important parameters. A mathematical model for a oil‐water two‐phase flow multiple‐fractured horizontal well with multiple finite‐conductivity fractures in triple media carbonate reservoir by conceptualizing vugs as spherical shapes is presented in this article. A semi‐analytical solution is obtained in the Laplace domain by using source function theory, Laplace transformation, and superposition principle. Analysis of transient pressure responses indicates that nine characteristic flow periods of multiple‐fractured horizontal wells with multiple finite‐conductivity fractures in triple media carbonate reservoir can be identified. Parametric analysis shows that water saturation of matrix, vug and fracture system and acid fracture, fracture half‐length, fracture number, fracture spacing and acid fracture conductivity can significantly influence the transient pressure responses of multiple‐fractured horizontal wells with multiple finite‐conductivity fractures in triple media carbonate reservoir. The model presented in this article can be applied to obtain important parameters pertinent to reservoir or fracture by type curve matching, and it can also provide useful information for optimizing fracture parameters.

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“… Rodriguez et al [2004] proposed analytical solutions with stationary exchanges between two nested sets of fractures and a porous matrix. Pulido et al [2006] addressed solutions for modeling transient exchanges, including the skin effect, between a fracture network, a microfracture network and a porous matrix assuming that microfractures are unconnected on a large scale.…”

Section: Introductionmentioning

confidence: 99%

A generalized solution for transient radial flow in hierarchical multifractal fractured aquifers

Lods

Gouze

2008

Water Resources Research

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[1] An analytical solution in the Laplace domain is derived for modeling anomalous pressure diffusion during pumping tests in aquifer displaying hierarchical fractal fracture networks. The proposed solution generalizes all of the analytical models for fractal flow published previously by combining multifractal diffusion and nested multiporosity with transient exchanges, interface skin effects, and well storage effect. Solutions are derived for fracture-delimited blocks with planar, cylindrical, and spherical shapes, as well as with any fractional dimensional shapes. Any combinations of these shapes can be defined in order to model a large range of situations. Within each permeability level, the fractal properties of the fracture network can be specified and the fractal dimension can be distinct from the shape dimension of the block.

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On a Well-Test Pressure Theory of Analysis for Naturally Fractured Reservoirs, Considering Transient Interporosity Matrix, Microfractures, Vugs, and Fractures Flow

Cited by 4 publications

References 0 publications

New flow model for the triple media carbonate reservoir

New flow model for the triple media carbonate reservoir

Dynamic analysis of oil‐water two‐phase flow for a multiple‐fractured horizontal well with multiple finite‐conductivity fractures in triple media carbonate reservoir

A generalized solution for transient radial flow in hierarchical multifractal fractured aquifers

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