When building a model of a naturally fractured reservoir, it is not sufficient to produce a highly detailed static model, it is also necessary that such a model can be flow simulated so that the production response given by the flow simulator can be compared to production history of the field. The technique that we present here takes a highly detailed static model of fractures, and identifies t...

This work studies the combined behavior of (1) horizontal wells, and (2) high-permeability fracturing. Fractured vertical WCIIS in high-permeability formations always yield finite conductivity fractures which in turn can reduce the benefits of the stimulation. It has been proposed recently that a fracture along a horizontal WC1lposes far smaller pressure drops than those of the fracture interse...

a solute diffuses may cause the observed, or effective diffusion coefficient (De) to be lower than the diffusion Diffusion is often the dominant mode of solute transport in soils coefficient of a compound in water (D0) (Rao et al., when advection is minimal. This paper describes the application of a radial diffusion cell method to estimate the effective diffusion coeffi1980). Moreover, exclusio...

A major issue to overcome when characterizing a deep fractured reservoir is that of data limitation due to accessibility and affordability. Moreover, the ability to map discontinuities in the rock with available geological and geophysical tools tends to decrease particularly as the scale of the discontinuity goes down. Geological characterization data include, but not limited to, measurements o...

Heat extraction from deep, hot rocks for energy production is based on water circulation through a man made fracture or natural fractures. As multiple and non-planar fractures in a stress field affect the geothermal reservoir behavior, so the capability to simulate multiple fractures and joints is needed to help reservoir design and operation. A 3D model is developed in this work to simulate an...

Micro-Computed Tomography (μCT) is used for imaging narrowly fractured natural rocks from the subsurface of the Vienna Basin, Austria. The dolomites from the Hauptdolomit Formation represent a successfully producing reservoir for hydrocarbons (mainly gas). However, the heterogeneity of the rocks and their fracture networks make conventional predictions on economically viable exploration of the ...

In a companion paper [Taron J, Elsworth D, Min K-B. Numerical simulation of thermal–hydrologic– mechanical–chemical processes in deformable, fractured porous media. Int J Rock Mech Min Sci 2009; doi:10.1016/j.ijrmms.2009.01.008] we introduced a new methodology and numerical simulator for the modeling of thermal–hydrologic–mechanical–chemical processes in dual-porosity media. In this paper we ut...

Natural gas hydrate (NGH) concentrations hold large reserves of relatively pure unconventional natural gases, consisting mainly of methane. Depressurization is emerging as the optimum conversion technology for converting NGH in its reservoir to its constituent water and natural gas. NGH concentrations commonly have a pore fill of over 80%, which means that NGH is a low-permeability reservoir, a...

Fractured and weathered crystalline basement units below erosional unconformities potentially represent unconventional reservoirs for georesources (oil, mineral water). The reservoir properties characteristics strongly depend on secondary processes connected to the local structural alteration/weathering history. Here we present results of in–situ field quantification mechanical (uniaxial compre...

Defining the fracture network and active fluid pathways are fundamental to characterizing a fractured reservoir. With this goal, we chose Saint Pierre Bois quarry (Vosges Massif, France) as natural analogue for Permian-Stephanian cover (arkoses)/Hercynian basement (granite) transition that serve geothermal reservoirs, example at Rittershoffen, Landau Insheim, where plants exploit kind of reserv...