Multiphysics modeling of CO2 sequestration in a faulted saline formation in Italy

Geological CO2 sequestration in multi‐compartment reservoirs: Geomechanical challenges

“…For the details on the derivation of the petrophysical properties and the flow‐dynamic simulations, see Castelletto et al . []. Different flow conditions along the southwest‐northeast lateral boundaries orthogonal to the fault and thrust system are also investigated.…”

“…In both facies, a Gaussian distribution is assumed for porosity, whose average value and a standard deviation are 0.35 and 0.07 for sand and 0.28 and 0.08 for shale. The permeability is given by empirical power‐law expressions [ Castelletto et al ., ] with an average κ equal to 100 mD and 0.25 mD for sand and shale, respectively. Moreover, the conservative assumption of impermeable lateral boundaries (white box edges AD and BC, Figure b) is used; scenario 2: it explores the effects of a more conservative assumption on the petrophysical properties relative to scenario 1, i.e., a smaller maximum porosity and a shorter correlation length of the horizontal permeability.…”

“…Additional details can be found in Castelletto et al . []. The geomechanical issues listed above have been investigated based on the time‐dependent evolution and local distribution of the fluid pore pressure along with the initial three‐dimensional (3D) stress regime.…”

Fracture-based modeling of complex flow and CO2 migration in three-dimensional fractured rocks

“…Flow and transport simulations in fractured formations play a crucial role in assessing water resources, high-level nuclear waste storage, oil and gas enhanced production, nonconventional shale gas, and CO 2 geological storage (Castelletto et al, 2013). Generating a discrete fracture network (DFN) requires knowledge on fracture properties, including the fracture number, size, orientation, and intensity.…”

Numerical research on CO2 storage efficiency in saline aquifer with low-velocity non-Darcy flow

“…Studies show that most saline aquifers have low permeability. The research on the CO 2 flow and storage in low permeability saline aquifers has important significance for mitigating greenhouse effect and improving CO 2 storage efficiency (Okwen et al, 2010;Castelletto et al, 2013).…”