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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes

Abstract

AAPG Memoir 75, Chapter 4: Pimienta-Tamabra(!)--A Giant Supercharged Petroleum System in the Southern Gulf of Mexico, Onshore and Offshore Mexico, by Leslie B. Magoon, Travis L. Hudson, and Harry E. Cook, Pages 83 - 125
from:
AAPG Memoir 75: The Western Gulf of Mexico Basin: Tectonics, Sedimentary Basins, and Petroleum Systems, Edited by Claudio Bartolini, Richard T. Buffler, and Abelardo Cant250_u.jpg (467 bytes)-Chapa
Copyright copyrght.jpg (4253 bytes)2001 by The American Association of Petroleum Geologists. All rights reserved.

Pimienta-Tamabra(!)--A Giant Supercharged Petroleum System in the Southern Gulf of Mexico, Onshore and Offshore Mexico

Leslie B. Magoon
Applied Geology, Sequim, Washington, U.S.A.

Travis L. Hudson
Instituto Polit233_e.jpg (471 bytes)cnico Nacional, Mexico City, Mexico

Harry E. Cook
U.S. Geological Survey, Menlo Park, California, U.S.A.

ABSTRACT

Pimienta-Tamabra(!) is a giant supercharged petroleum system in the southern Gulf of Mexico with cumulative production and total reserves of 66.3 billion barrels of oil and 103.7 tcf of natural gas, or 83.6 billion barrels of oil equivalent (BOE). The effectiveness of this system results largely from the widespread distribution of good to excellent thermally mature, Upper Jurassic source rock underlying numerous stratigraphic and structural traps that contain excellent carbonate reservoirs. Previous HitExpulsionNext Hit of oil and gas as a supercritical fluid from Upper Jurassic source rock occurred when the thickness of overburden rock exceeded 5 km. This burial event started in the Eocene, culminated in the Miocene, and continues to a lesser extent today. The expelled hydrocarbons started migrating laterally and then upward as a gas-saturated 35-40176.jpg (425 bytes)API oil with less than 1 wt.% sulfur and a gas-to-oil ratio (GOR) of 500-1000 ft3/BO. The generation-accumulation Previous HitefficiencyTop is about 6%.

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