Mathematics – Logic
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.1707w&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 46, Issue 10, pp.1707-1713
Mathematics
Logic
27
Scientific paper
When porous, fluid-saturated, bodies of geologic dimensions are subjected to temperature gradients on the order of the normal geothermal gradient (25°C/km) it is shown that large (km) scale eddy currents will spontaneously arise and persist in these bodies. The velocity of these fluid currents is on the order of 1 meter per year, but taken over a period of several million years, the mass flux accompanying the fluid flow is large enough to produce significant porosity changes. It is shown that diffusive mass transfer is generally a negligible component of the total mass flux when characteristic distances are greater than grain diameters and it is concluded that most post-depositional reservoir cementation is due to slowly circulating fluids. In terms of a broad perspective, reservoir diagenesis can be regarded as a low heat flow analogue of hydrothermal alteration, occupying the low fluid flow regime of the spectrum, and passing into the hydrothermal regime as the heat flow and fluid velocities increase.
Hewett T. A.
Wood Robert J.
No associations
LandOfFree
Fluid convection and mass transfer in porous sandstones--a theoretical model 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 Fluid convection and mass transfer in porous sandstones--a theoretical model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid convection and mass transfer in porous sandstones--a theoretical model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1030223