Changes

==East breaks migration model==

==East breaks migration model==

 

[[file:Sedimentary-basin-analysis_fig4-55.png|thumb|{{figure number|1}}North-south seismic section showing the hypothetical model for migration pathways within the East Breaks 160-161 field. Based on data from Lovely and Ruggiero (1995, personal communication).]]

Sedimentary-basin-analysis_fig4-55.png|{{figure number|1}}North-south seismic section showing the hypothetical model for migration pathways within the East Breaks 160-161 field. Based on data from Lovely and Ruggiero (1995, personal communication).

 

Sedimentary-basin-analysis_fig4-42.png|{{figure number|2}}Location of Figure 1. From Armentrout et al.<ref name=Armentroutetal_1991>Armentrout, J. M., S. J. Malacek, P. Braithwaite, and C. R. Beeman, 1991, Seismic facies of slope basin turbidite reservoirs, East Breaks 160-161 field: Pliocene-Pleistocene, northwestern Gulf of Mexico, ''in'' P. Weimer and M. J. Link, eds., Seismic facies and sedimentary processes of submarine fans and turbidite systems: New York, Springer-Verlag, p. 223-239.</ref> Courtesy Springer-Verlag.

[[file:Sedimentary-basin-analysis_fig4-42.png|thumb|{{figure number|2}}Location of Figure 1. From Armentrout et al.<ref name=Armentroutetal_1991>Armentrout, J. M., S. J. Malacek, P. Braithwaite, and C. R. Beeman, 1991, Seismic facies of slope basin turbidite reservoirs, East Breaks 160-161 field: Pliocene-Pleistocene, northwestern Gulf of Mexico, ''in'' P. Weimer and M. J. Link, eds., Seismic facies and sedimentary processes of submarine fans and turbidite systems: New York, Springer-Verlag, p. 223-239.</ref> Courtesy Springer-Verlag.]]

Using these hypothetical migration avenues, a migration pathway model has been constructed for the East Breaks 160-161 minibasin. Dow et al.<ref name=ch04r29 /> present temperature information, indicating an elevated thermal gradient in the block 160-A-29 well where it is in close proximity to salt. Additionally, the A-29 borehole mud weight of [[weight::13.5 lb]] below [[depth::5,000 ft]] (1524 m) and [[weight::15.7 lb]] below [[depth::7,000 ft]] (2134 m) and mathematical [[modeling]] suggest probable overpressure and undercompacted sediments below a depth of [[depth::10,000 ft]] (3048 m). The consequent thermal and geopressure gradient would drive fluid flow from depth up migration pathways into available reservoirs.

Using these hypothetical migration avenues, a migration pathway model has been constructed for the East Breaks 160-161 minibasin. Dow et al.<ref name=ch04r29 /> present temperature information, indicating an elevated thermal gradient in the block 160-A-29 well where it is in close proximity to salt. Additionally, the A-29 borehole mud weight of [[weight::13.5 lb]] below [[depth::5,000 ft]] (1524 m) and [[weight::15.7 lb]] below [[depth::7,000 ft]] (2134 m) and mathematical [[modeling]] suggest probable overpressure and undercompacted sediments below a depth of [[depth::10,000 ft]] (3048 m). The consequent thermal and geopressure gradient would drive fluid flow from depth up migration pathways into available reservoirs.