Journal Article10.1088/1742-2132/10/3/035014
Analysis of horizontal well pressure behaviour in fractured low permeability reservoirs with consideration of the threshold pressure gradient
TL;DR: In this article, the authors presented a mathematical model for the analysis of the transient pressure behavior of a horizontal well in naturally fractured low permeability reservoirs, which takes the threshold pressure gradient (TPG) into consideration.
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Abstract: This paper presents a mathematical model for the analysis of the transient pressure behaviour of a horizontal well in naturally fractured low permeability reservoirs, which takes the threshold pressure gradient (TPG) into consideration. Then, the solution of this model is obtained by using the method of Laplace transform and Fourier cosine transform, and the type curves are plotted by the Stehfest numerical inversion method. Pressure behaviour is analysed by examining the pressure drawdown curves, the derivative plots and the effect of the characteristic parameters. The typical pressure response of this reservoir is presented by the following five flow regimes: (1) wellbore storage and transition flow; (2) early radial flow in the vertical plane; (3) line flow in the horizontal plane; (4) matrix-fracture system transition flow; and (5) later pseudo-radial flow affected by the TPG. At the end, a field application manifests the correctness of the solutions derived in this paper, and the results have both theoretical and practical significance in predicting the production behaviour of carbonate reservoirs and evaluating fluid flow and transport in such a formation.
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Citations
“Triple porosity” modeling of transient well test and rate decline analysis for multi-fractured horizontal well in shale gas reservoirs
TL;DR: In this article, the authors presented a "tri-porosity" mathematical model to describe fluid flow from shale gas formation to a multi-fractured horizontal well, where free gas is stored in both the micro-pores in matrix and natural fractures and the adsorption gas is adsorbed on the surface of matrix particles, which will then flow into the natural fractures.
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Performance Analysis of Fractured Wells with Stimulated Reservoir Volume in Coal Seam Reservoirs
TL;DR: In this article, the authors derived a continuous linear source function with constant production by using the Laplace transform and Duhamel theory for coal bed methane (CBM) well.
Modelling of fractured horizontal wells with complex fracture network in natural gas hydrate reservoirs
Cong Xiao,Leng Tian +1 more
TL;DR: In this article, a comprehensive numerical model of hydraulic fracturing horizontal well with discrete fracture network where embedded discrete fracture model (EDFM) is employed to characterize the coupled phenomenon between discrete fracture networks and fractured SGR.
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Effective permeability of fractured porous media with fractal dual-porosity model
TL;DR: In this paper, a fractal dual-porosity model is developed to study the single-phase fluid flow through fractured porous media, which depends on the fractal dimension and fracture aperture.
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Discussion on seepage governing equations for low permeability reservoirs with a threshold pressure gradient
Guofeng Han,Yuewu Liu,Kumar Nawnit,Yingfang Zhou +3 more
- 25 Sep 2018
TL;DR: In this article, the authors derived the 1-D seepage governing equation (SGE) for low permeability porous media with a threshold pressure gradient (TPG) in Cartesian and cylindrical coordinate systems.
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