Plio-pleistocene depositional sequences of the southeastern Texas continental shelf and slope

TL;DRAbstract

Plio-Pleistocene reservoirs have produced more than 40 million barrels of oil and 2.5 trillion cubic feet of gas from Texas offshore leases. The reservoirs initially contained about 1.6 billion barrels of oil equivalent, or nearly two-thirds of the estimated total recoverable reserves beneath the Texas Outer Continental Shelf. The 75 fields that host these resources are located near diapirs or faults associated with late salt movement. This report uses data on structural style, reservoir facies, and hydrocarbon composition to group the fields into six exploration plays, all of which offer some potential for either new field discoveries or reserve growth. Among the sources of data used were two grids of seismic profiles, approximately 350 geophysical logs of wells penetrating all or part of the Plio-Pleistocene section, and paleontological reports from nearly two-thirds of the wells used for correlation. Results showed that although each play produces gas and some oil, the most prolific

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