Subcritical propagation and coalescence of oil-filled cracks: Getting the oil out of low-permeability source rocks

Statistics – Computation

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Structural Geology: Mechanics, Theory, And Modeling, Computational Geophysics: Modeling (1952, 4255), Structural Geology: Fractures And Faults

Scientific paper

We use a fracture mechanics model to study subcritical propagation and coalescence of single and collinear oil-filled cracks during conversion of kerogen to oil. The subcritical propagation distance, propagation duration, crack coalescence and excess oil pressure in the crack are determined using the fracture mechanics model together with the kinetics of kerogen-oil transformation. The propagation duration for the single crack is governed by the transformation kinetics whereas the propagation duration for the multiple collinear cracks may vary by two orders of magnitude depending on initial crack spacing. A large amount of kerogen (>90%) remains unconverted when the collinear cracks coalesce and the new, larger cracks resulting from coalescence will continue to propagate with continued kerogen-oil conversion. The excess oil pressure on the crack surfaces drops precipitously when the collinear cracks are about to coalesce, and crack propagation duration and oil pressure on the crack surfaces are strongly dependent on temperature.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Subcritical propagation and coalescence of oil-filled cracks: Getting the oil out of low-permeability source rocks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Subcritical propagation and coalescence of oil-filled cracks: Getting the oil out of low-permeability source rocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subcritical propagation and coalescence of oil-filled cracks: Getting the oil out of low-permeability source rocks will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1445361

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.