Results 211 to 220 of about 184,702 (243)

Waves in Double Porosity Elasticity

2017
Rayleigh waves and Love waves have long been used as an important tool in geophysical problems employing linear elasticity theory. Rayleigh waves are studied using the Berryman & Wang [? ] double porosity theory presented in section 2.2, by Dai et al. [? ]. Dai et al.
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Acceleration waves in nonlinear double porosity elasticity

International Journal of Engineering Science, 2013
Abstract A model for a nonlinear elastic body with a double porosity structure is proposed. We generalize previous work which has concentrated mainly on linear double porosity elastic materials or has had a particular structure in the nonlinearities. Here we allow the strain energy function and the effective permeabilities associated to the macro and
GENTILE, MAURIZIO, B. Straughan
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Modeling Transverse Imbibition in Double-Porosity Simulators

Proceedings of SPE California Regional Meeting, 1988
ABSTRACT Published imbibition experiments of an advancing fracture water level surrounding a single matrix block are simulated using various double porosity models. These double porosity formulations are inherently unable to represent transverse imbibition with an advancing water level in the fracture as they are based essentially on one
B. L. Beckner, A. Firoozabadi, K. Aziz
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Analytical solutions for double-porosity, double-permeability and layered systems

Journal of Petroleum Science and Engineering, 1990
Abstract A number of exact solutions to the problem of flow of slightly compressible fluids through naturally fractured and layered reservoirs were obtained by the author and his colleagues during the previous decade. The approach adopted to solve such a complex problem is radically different from the traditional approach that is used in the ...
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Well Testing Analysis in a Double Porosity Reservoir

International Meeting on Petroleum Engineering, 1986
ABSTRACT Our research results and their application on well testing analysis in the reservoir with double porosity in recent years are summarized in this paper. In the field of theoretical research, on the basis of analytical solution of flow equation for the double porosity reservoir1, calculation methods under three boundary conditions,
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Pressure transients in a double‐porosity medium

Water Resources Research, 1992
Pressure transients associated with a constant‐rate pumping test in a double‐porosity (fissured or multilayered) reservoir may exhibit, in succession, several periods of characteristic log linear dependence on time. If the flow in the matrix blocks is primarily vertical then slope halving of the semilog gradient may be observed, but if the radial ...
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Stabilized Well Productivity in Double-Porosity Reservoirs

SPE Reservoir Evaluation & Engineering, 2008
Summary In this work, we present a simple1 analytical formula for the stabilized productivity index (PI) of an arbitrary well in an arbitrary closed, naturally fractured reservoir that can be modeled as a double-porosity reservoir. The formula relates the PI to the PI of a well in a single-porosity reservoir with permeability equal to ...
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Models for Double and Triple Porosity

2017
In this chapter we review several of the mathematical models which have appeared in the literature and are capable of describing the evolutionary behaviour of a double or triple porosity elastic medium, in some appropriate sense.
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Fracture permeability limit for double porosity and double permeability models

Rio Oil and Gas Expo and Conference, 2022
Ivan Fabio Mota De Menezes, Marcos Vitor Barbosa Machado, Ricardo Dória Loyola-Camorim   +2 more
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Two-Phase Flow in Double Porosity Media

2000
Problem of upscaling two-phase flow through highly heterogeneous media deals with a more complex case of transport equations, characterized by nonlinearity and degeneration of relative permeabilities, as well as by specific capillary phenomena which determine discontinuous behavior of the saturation, that has not anything similar in linear case.
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