Naturally Fractured Reservoirs
2004; Elsevier BV; Linguagem: Inglês
10.1016/b978-075067711-0/50012-8
AutoresDjebbar Tiab, Erie C. Donaldson,
Tópico(s)Hydrocarbon exploration and reservoir analysis
ResumoThe fractures represent mechanical failures of the rock strength to natural geological stresses, such as tectonic movement, lithostatic pressure changes, thermal stresses, high fluid pressure, drilling activity, and even fluid withdrawal, since fluid also partially supports the weight of the overburden rock. It discusses that petroleum reservoir rocks can be found at any depth; at the deeper depths pressure of the overburden is sufficient enough to cause plastic deformation of most of the sedimentary rocks. Such rocks are unable to sustain shear stresses over a long period and flow towards an equilibrium condition. It also focuses on naturally fractured rocks that can be geologically categorized into three main types, based on their porosity systems: intercrystalline-intergranular, fracture-matrix, and vugular-solution.
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