Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks
8: Impact of Depositional and Diagenetic Heterogeneity on Multiscale Mechanical Behavior of Mancos Shale, New Mexico and Utah, USA
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Published:January 31, 2020
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CiteCitation
Hongkyu Yoon, Mathew D. Ingraham, Joseph Grigg, Benjamin Rosandick, Peter Mozley, Alex Rinehart, William M. Mook, Thomas Dewers, 2020. "Impact of Depositional and Diagenetic Heterogeneity on Multiscale Mechanical Behavior of Mancos Shale, New Mexico and Utah, USA", 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
Shales are enigmatic rock types with compositional and textural heterogeneity across a range of scales. This work addresses pore- to core-scale mechanical heterogeneity of Cretaceous Mancos Shale, a thick mudstone with widespread occurrence across the western interior of the United States. Examination of a ~100 m (~328 ft) core from the eastern San Juan Basin, New Mexico, suggests division into seven lithofacies, encompassing mudstones, sandy mudstones, and muddy sandstones, displaying different degrees of bioturbation. Ultrasonic velocity measurements show small measurable differences between the lithofacies types, and these are explained in terms of differences in allogenic (clay and sand) and...
- acoustical properties
- body waves
- Carbon County Utah
- clastic rocks
- compressibility
- cores
- Cretaceous
- deposition
- diagenesis
- elastic waves
- electron microscopy data
- grain size
- lithofacies
- loading
- Mancos Shale
- mechanical properties
- Mesozoic
- New Mexico
- P-waves
- reservoir properties
- Rio Arriba County New Mexico
- rock mechanics
- S-waves
- San Juan Basin
- sedimentary rocks
- seismic waves
- SEM data
- shale
- tensile strength
- tension
- textures
- ultrasonic methods
- United States
- Utah
- velocity
- well logs
- X-ray diffraction data
- El Vado Sandstone Member
- Brazilian tests