Temporal scale-based production analysis of fractured horizontal wells with stimulated reservoir volume

Li, Binglin; Su, Yuliang

doi:10.1016/j.jngse.2017.03.006

Cited by 7 publications

(3 citation statements)

References 41 publications

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“…Generally, fractal geometry is processed by the natural fracture. In some previous works, fractal geometry is mainly matched by power − or exponential functions. However, in the case of power or exponential function, the fractured area is much narrower than that in the current work.…”

Section: Tight Gas Flow Model Considering Imbibitionmentioning

confidence: 99%

Study of Imbibition Effect Using Temporal-Scale Analysis of Two-Phase Flow in a Tight Reservoir

et al. 2022

Energy Fuels

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Understanding the flow time scale in a tight reservoir has tremendous implications for theoretical studies and production system optimization. However, both the imbibition and dynamic coupling exert a significant effect on the fluid flow time scale and performance of the well during fracture and soaking, which is an effective way to develop a tight reservoir. In the present work, a multiple temporal scale flow model in a tight reservoir is established. A time scale analysis is conducted on the flow of fluid using Laplace transformation, finite-element method, and characteristic line method. The impact of imbibition and dynamic coupling on the temporal scale of the wellbore pressure is predicted. The results show that the wellbore pressure fluctuates when the time lag is considered or when the cross-flow coefficient from the matrix to the natural fracture is low. The imbibition is more evident for the case with higher capillary pressure and a tighter unstimulated region. The right-hand side peaks on the time scale diagram adequately reflect the water saturation propagation and fluid flow inside the unstimulated region. The effects of reservoir microstructure and imbibition on fluid flow in a porous medium may be better reflected by a time scale analysis. Results from this study can be helpful in optimizing the soaking duration, fracture scheme, and capillary pressure for the effective development of tight reservoirs.

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Section: Tight Gas Flow Model Considering Imbibitionmentioning

confidence: 99%

Study of Imbibition Effect Using Temporal-Scale Analysis of Two-Phase Flow in a Tight Reservoir

et al. 2022

Energy Fuels

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“…Therefore, the heterogeneity is best captured by a fractal geometry model, which significantly improves the model prediction. A continuous function of a spatial coordinate, such as a linear, power, or exponential [15] function, is employed to represent the fractal geometry [16,17]. The fractal-based model requires a smaller number of data points, is less computationally elaborate, and is more accurate than traditional models [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the integration between exponential functions and microseismic events has not been reported previously. Moreover, the heterogeneity has only been accounted for in one direction [5,6,15,[24][25][26][27][28][29][30][31]. The gas flow model in consideration of second dimensional heterogeneity has not been reported recently, and the effect of filtration on the production has not been considered.…”

Section: Introductionmentioning

confidence: 99%

Temporal Scale Analysis of Gas Flow in Tight Gas Reservoirs considering the Nonequilibrium Effect

Husein

et al. 2021

Geofluids

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The fractal geometry, anisotropy, discontinuity, and non-Darcy flow of tight reservoirs exert a significant effect on well production performance. In this study, the reservoir fractal geometry is represented by exponential functions on the basis of microseismic data, while the discontinuity of the fractures is presented as a nonequilibrium effect. The impact of the nonequilibrium effect and the low velocity non-Darcy flow on the temporal scale of the wellbore pressure is predicted herein. Results showed that the time scale analysis accurately simulates gas flow in a tight reservoir. The wellbore pressure gradually increases, whereas the pressure in the matrix lags when the nonequilibrium effect is considered. The wellbore pressure is affected in the early period by the nonequilibrium effect. However, at the later stage, the pressure in the matrix is mainly affected by the non-Darcy flow. When the non-Darcy flow is dominant, the pores without gas flowing through are better presented.

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Porous gravity currents: Axisymmetric propagation in horizontally graded medium and a review of similarity solutions

Lauriola

Felisa

Petrolo

et al. 2018

Advances in Water Resources

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Temporal scale-based production analysis of fractured horizontal wells with stimulated reservoir volume

Cited by 7 publications

References 41 publications

Study of Imbibition Effect Using Temporal-Scale Analysis of Two-Phase Flow in a Tight Reservoir

Study of Imbibition Effect Using Temporal-Scale Analysis of Two-Phase Flow in a Tight Reservoir

Temporal Scale Analysis of Gas Flow in Tight Gas Reservoirs considering the Nonequilibrium Effect

Porous gravity currents: Axisymmetric propagation in horizontally graded medium and a review of similarity solutions

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