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East Breaks hydrocarbon migration model (view source)
Revision as of 13:30, 17 July 2014
, 13:30, 17 July 2014→Southern Louisiana model
Hanor and Sassen<ref name=ch04r42 /> present data from Cretaceous and Tertiary strata in southern Louisiana for aqueous fluid flow from deep, geopressured sediments vertically upward to normally hydropressured zones. This migration is interpreted to occur through fractures and faults rather than through matrix porosity.
Hanor and Sassen<ref name=ch04r42 /> present data from Cretaceous and Tertiary strata in southern Louisiana for aqueous fluid flow from deep, geopressured sediments vertically upward to normally hydropressured zones. This migration is interpreted to occur through fractures and faults rather than through matrix porosity.
The following figure is a regional cross section summarizing in a qualitative, conceptual way the regional hydraulic flow regimes of the Louisiana Gulf Coast above a depth of [[depth::20,000 ft]] (6096 m). The uppermost regime consists of low-salinity, meteoric water driven gulfward by differences in topographic elevation. The deepest regime consists of moderately saline water driven upward and laterally by excess fluid pressures. In between is a hydraulic regime in which lateral and vertical flow of saline brines is taking place—in part in response to differences in fluid density caused by spatial variations in temperature and salinity. The dissolution of salt plays a critical role in driving fluid flow in this region. Arrows show possible pathways of fluid flow.
The following figure is a regional [[cross section]] summarizing in a qualitative, conceptual way the regional hydraulic flow regimes of the Louisiana Gulf Coast above a depth of [[depth::20,000 ft]] (6096 m). The uppermost regime consists of low-salinity, meteoric water driven gulfward by differences in topographic elevation. The deepest regime consists of moderately saline water driven upward and laterally by excess fluid pressures. In between is a hydraulic regime in which lateral and vertical flow of saline brines is taking place—in part in response to differences in fluid density caused by spatial variations in temperature and salinity. The dissolution of salt plays a critical role in driving fluid flow in this region. Arrows show possible pathways of fluid flow.
==GOM Neogene model==
==GOM Neogene model==