Geofluids

Journal: Geofluids

Publisher

Hindawi

ISSN

1468-8115
1468-8123

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Publications 1 - 6 of 6

Heat transport at boiling, near-critical conditions
Coumou, Dim; Driesner, Thomas; Heinrich, Christoph A. (2008)
Geofluids
Fluid Flow in Unconventional Gas Reservoirs
Xia, Tongqiang; Dontsov, Egor; Chen, Zhongwei; et al. (2018)
Geofluids
The Role of In Situ Stress in Organizing Flow Pathways in Natural Fracture Networks at the Percolation Threshold
Jiang, Chuanyin; Wang, Xiaoguang; Sun, Zhixue; et al. (2019)
Geofluids
We investigated the effect of in situ stresses on fluid flow in a natural fracture network. The fracture network model is based on an actual critically connected (i.e., close to the percolation threshold) fracture pattern mapped from a field outcrop. We derive stress-dependent fracture aperture fields using a hybrid finite-discrete element method. We analyze the changes of aperture distribution and fluid flow field with variations of in situ stress orientation and magnitude. Our simulations show that an isotropic stress loading tends to reduce fracture apertures and suppress fluid flow, resulting in a decrease of equivalent permeability of the fractured rock. Anisotropic stresses may cause a significant amount of sliding of fracture walls accompanied with shear-induced dilation along some preferentially oriented fractures, resulting in enhanced flow heterogeneity and channelization. When the differential stress is further elevated, fracture propagation becomes prevailing and creates some new flow paths via linking preexisting natural fractures, which attempts to increase the bulk permeability but attenuates the flow channelization. Comparing to the shear-induced dilation effect, it appears that the propagation of new cracks leads to a more prominent permeability enhancement for the natural fracture system. The results have particularly important implications for predicting the hydraulic responses of fractured rocks to in situ stress fields and may provide useful guidance for the strategy design of geofluid production from naturally fractured reservoirs.
The dynamic interplay between saline fluid flow and rock permeability in magmatic-hydrothermal systems
Weis, Philipp (2015)
Geofluids
Combining finite element and finite volume methods for efficient multiphase flow simulations in highly heterogeneous and structurally complex geologic media
Geiger, Sebastian; Roberts, Steven; Matthäi, Stephan K.; et al. (2004)
Geofluids
Editorial. Contribution of Pore-Scale Approach to Macroscale Geofluids Modelling in Porous Media
Romano, Emanuele; Jimenez-Martinez, Joaquin; Parmigiani, Andrea; et al. (2019)
Geofluids

Publications 1 - 6 of 6

Journal: Geofluids

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