Podrobnosti záznamu

Název
    The creation of an asymmetric hydraulic fracture as a result of driving stress gradients.
Autor
    Dahm, Torsten
    Fischer, Tomáš
    Hainzl, Sebastian
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Geophysical Journal International
Svazek/č.
    Roč. 179, č. 1
Strany
    6
Rok
    2009
Výraz tezauru
    downhole methods
    earthquake source observations
    fracture and flow
    geomechanics
Klíčové slovo
    Asymmetric
    Creation
    Driving
    Fracture
    Gradients
    Hydraulic
    Result
    Stress
Abstrakt (anglicky)
   Hydraulic fracture stimulation is frequently performed in hydrocarbon reservoirs and geothermal systems to increase the permeability of the rock formation. These hydraulic fractures are often mapped by hypocentres of induced microearthquakes. In some cases microseismicity exhibits asymmetry relative to the injection well, which can be interpreted by unequal conditions for fracture growth at opposite sides of the well or by observation effects. Here we investigate the role of the lateral change of the minimum compressive stress. We use a simple model to describe the relation among the lateral stress gradient, the mean viscous pressure gradients in the fracture wings, the fracture geometry, and the net pressure in the fracture.
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012