REGIONAL SPOTLIGHT: WOODBINE-EAGLE FORD

摘要

An emerging resource play, centered on productive Woodbine fields in Grimes, Madison and Brazos counties in East Texas, appears to be in the early stages of commercial development. Horizontals drilled by a handful of small companies into the Woodbine-Eagle Ford section are highlighting the play's potential. Geology. The Upper Cretaceous Woodbine-Eagle Ford interval lies unconformably above the Buda limestone and unconformably below the Austin Chalk. The lower portion, the Woodbine, consists mainly of sandstone and shale that are non-marine in the northern and central parts of the East Texas Basin and marine in the south and southwestern portion. The Eagle Ford overlies the Woodbine, and consists largely of marine, gray to dark-gray shale with fine- to medium-grained porous to nonporous sandstone members.