Abstract
The interaction between HF (hydrofractures) and NF (natural fractures) is a complex-coupled process which involves several physical parameters. Despite numerous previous works, the respective role of in situ stress, natural fracture properties, and orientations is still difficult to assess. In this chapter, a fully hydromechanical coupled numerical model has been used to simulate different three-dimensional configurations. These configurations provide insight into how a natural fracture is mechanically or hydraulically activated depending on well-defined parameters. It has been shown that the natural fracture can be either activated hydraulically without any shear displacement or mechanically activated while not loaded hydraulically. These configurations are controlled at a first-order level by the combination of the in situ differential stress state and the natural fracture orientation.
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This work is supported by TOTAL SA.
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Rorato, R., Donzé, FV., Tsopela, A., Pourpak, H., Onaisi, A. (2016). Discrete Element Modeling of the Role of In Situ Stress on the Interactions Between Hydraulic and Natural Fractures. In: Jin, C., Cusatis, G. (eds) New Frontiers in Oil and Gas Exploration. Springer, Cham. https://doi.org/10.1007/978-3-319-40124-9_3
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