Statistics – Computation
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3509303j&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 9, CiteID L09303
Statistics
Computation
1
Structural Geology: Mechanics, Theory, And Modeling, Computational Geophysics: Modeling (4255), Structural Geology: Fractures And Faults
Scientific paper
We present a fracture-mechanics-based formulation to investigate primary oil migration through the propagation of an array of periodic, parallel fractures in a sedimentary rock with elevated pore fluid pressure. The rock is assumed to be a linearly elastic medium. The fracture propagation and hence oil migration velocity are determined using a fracture mechanics criterion together with the lubrication theory of fluid mechanics. We find that fracture interactions have profound effects on the primary oil migration behavior. For a given fracture length, the mass flux of oil migration decreases dramatically with an increase in fracture density. The reduced oil flux is due to the decreased fracture propagation velocity as well as the narrowed fracture opening that result from the fracture interactions.
Jin Z.-H.
Johnson Eric S.
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