ESTIMATES OF LOUANN SALT THICKNESS BASED ON CURRENT OBSERVATIONS FROM SEISMIC AND WELL CONTROL IN OFFSHORE MOBILE BAY, ALABAMA
Published:July 01, 1993
I. LERCHE, B. MUDFORD, P. LUNDEGARD, 1993. "ESTIMATES OF LOUANN SALT THICKNESS BASED ON CURRENT OBSERVATIONS FROM SEISMIC AND WELL CONTROL IN OFFSHORE MOBILE BAY, ALABAMA", Mesozoic and Early Cenozoic Development of the Gulf of Mexico and Caribbean Region–A Context for Hydrocarbon Exploration, James L. Pindell, Bob F. Perkins
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The area of offshore Mobile Bay, Alabama is underlain by an extensive Jurassic salt deposit from the Louann Formation. Two procedures are given for estimating the original thickness of the Louann salt based on seismic information. The first procedure uses buoyancy pressure of the salt and empirical rock properties connected with fracture limits of rocks under pressure, to suggest a most likely salt thickness of 1600 ± 1400 ft. The second method uses the observed quasi-periodic amplitude variations of the Louann to estimate an original thickness of around 375 ft. An average of both estimates yields a mean thickness for the initial Louann salt of 1000 ± 500 ft.