Researchers trace geologic origins of Gulf of Mexi
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Posted On: 01/16/2021 12:26:31 PM
Researchers trace geologic origins of Gulf of Mexico 'super basin' success
by University of Texas at Austin
The Gulf of Mexico holds huge untapped offshore oil deposits that could help power the U.S. for decades.
The energy super basin's longevity, whose giant offshore fields have reliably supplied consumers with oil and gas since the 1960s, is the result of a remarkable geologic past—a story that began 200 million years ago among the fragments of Pangea, when a narrow, shallow seaway grew into an ocean basin, while around it mountains rose then eroded away.
The processes that shaped the basin also deposited and preserved vast reserves of oil and gas, of which only a fraction has been extracted. Much of the remaining oil lies buried beneath ancient salt layers, just recently illuminated by modern seismic imaging. That's the assessment of researchers at The University of Texas at Austin, who reviewed decades of geological research and current production figures in an effort to understand the secret behind the basin's success.
Because of its geological history, the Gulf of Mexico remains one of the richest petroleum basins in the world. Despite 60 years of continuous exploration and development, the basin's ability to continue delivering new hydrocarbon reserves means it will remain a significant energy and economic resource for Texas and the nation for years to come, said lead author John Snedden, a senior research scientist at the University of Texas Institute for Geophysics (UTIG).
"When we looked at the geologic elements that power a super basin—its reservoirs, source rocks, seals and traps—it turns out that in the Gulf of Mexico, many of those are pretty unique," he said.
The research was featured in a December 2020 special volume of the American Association of Petroleum Geologists Bulletin focused on the world's super basins: a small number of prolific basins that supply the bulk of the world's oil and gas.
by University of Texas at Austin
The Gulf of Mexico holds huge untapped offshore oil deposits that could help power the U.S. for decades.
The energy super basin's longevity, whose giant offshore fields have reliably supplied consumers with oil and gas since the 1960s, is the result of a remarkable geologic past—a story that began 200 million years ago among the fragments of Pangea, when a narrow, shallow seaway grew into an ocean basin, while around it mountains rose then eroded away.
The processes that shaped the basin also deposited and preserved vast reserves of oil and gas, of which only a fraction has been extracted. Much of the remaining oil lies buried beneath ancient salt layers, just recently illuminated by modern seismic imaging. That's the assessment of researchers at The University of Texas at Austin, who reviewed decades of geological research and current production figures in an effort to understand the secret behind the basin's success.
Because of its geological history, the Gulf of Mexico remains one of the richest petroleum basins in the world. Despite 60 years of continuous exploration and development, the basin's ability to continue delivering new hydrocarbon reserves means it will remain a significant energy and economic resource for Texas and the nation for years to come, said lead author John Snedden, a senior research scientist at the University of Texas Institute for Geophysics (UTIG).
"When we looked at the geologic elements that power a super basin—its reservoirs, source rocks, seals and traps—it turns out that in the Gulf of Mexico, many of those are pretty unique," he said.
The research was featured in a December 2020 special volume of the American Association of Petroleum Geologists Bulletin focused on the world's super basins: a small number of prolific basins that supply the bulk of the world's oil and gas.
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