GREY:RGVNF - Post by User
Comment by
JennyB2on Oct 30, 2010 5:40pm
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Post# 17635750
RE: RE: RE: additional info ...
RE: RE: RE: additional info ...
Yes dear, I was trying to be a smart-a$$. Did I pull it off?
Hm, I think that the average oil field is not a succession of superposed reservoirs. Rather, there are some oil fields where structurally repeated host rocks do produce zones of productivity via the repetition of oil bearing strata.
Magnetotellurics just might be the best application for a geologically complex oil field such as the Delphi. The Direct Hydrocarbon Indicators characteristic with the standard resistivity surveys are also clearly indicated with MT in addition to beating the 1 km seismic barrier.
Of course porosity is important but even more important is "effective porosity", no? Do 'we' have any at Delphi? Of course, if a reservoir rock does not have a very high value of effective porosity - say from 15% to 30% - then the permeability doesn't matter much as if there is no effective porosity, the permeability is not going to be there.
Both porosity and permeability are required to have a producible reservoir. Porosity is a static measure, but permeability can be enhanced via the previously discussed fraccing.
In "resistivity", do you think REV/Partners have access to the technological expertise to be performing crosshole EM? Downhole EM is good, but what the heck? Go for the best, right?
As to pressure...I don't recall, does the Delphi have sufficient gas pressure to produce oil flow to the well bore?