14: Controls on Production in the Eagle Ford: Permeability, Stratigraphy, Diagenesis, and Fractures
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Published:January 31, 2020
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CiteCitation
Tobi H. Kosanke, John A. Breyer, Richard Denne, Ronald Nelson, Richard L. Rosen, Munir Aldin, Anne Warren, 2020. "Controls on Production in the Eagle Ford: Permeability, Stratigraphy, Diagenesis, and Fractures", Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks, Wayne K. Camp, Kitty L. Milliken, Kevin Taylor, Neil Fishman, Paul C. Hackley, Joe H. S. Macquaker
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ABSTRACT
The Cenomanian–Turonian Eagle Ford of South Texas is largely composed of two interbedded rock types: marls and limestones. The marls consist mainly of coccoliths with sand- and silt-size grains predominantly comprised of planktonic foraminifera with lesser amounts of inoceramid fragments and other carbonate grains. The limestones are recrystallized, and they contain calcified radiolarians and calcispheres, with almost all pore spaces having been filled with calcite cement. Most of the hydrocarbons in the Eagle Ford, regardless of thermal maturity, reside in the pore network of the marls. Economic production of hydrocarbons stored in these marls, which have nanodarcy permeabilities, can...
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Contents
Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks
GeoRef
- Atascosa County Texas
- Bakken Formation
- calcite
- carbonate rocks
- carbonates
- cement
- Cenomanian
- clastic rocks
- clay minerals
- Cretaceous
- diagenesis
- Eagle Ford Formation
- elastic constants
- fractures
- Gulfian
- hydrocarbons
- limestone
- lithofacies
- lithotypes
- marl
- Mesozoic
- mudstone
- naturally fractured reservoirs
- organic compounds
- Paleozoic
- permeability
- petroleum
- Poisson's ratio
- porosity
- production
- reservoir rocks
- rigidity
- sedimentary rocks
- sheet silicates
- silicates
- Texas
- thermal maturity
- thin sections
- total organic carbon
- Turonian
- United States
- Upper Cretaceous
- upper Paleozoic
- X-ray diffraction data
- Young's modulus
- unconventional reservoirs