+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

New insights on the hydrocarbon system of the Fruitland Formation coal beds, northern San Juan Basin, Colorado and New Mexico, USA

, : New insights on the hydrocarbon system of the Fruitland Formation coal beds, northern San Juan Basin, Colorado and New Mexico, USA. Special Paper - Geological Society of America 387(Pages 73-111

This investigation combines traditional and newly available investigative techniques to characterize the hydrocarbon system of the Fruitland Formation coals, both at outcrop and in the subsurface. These analyses indicate that the Fruitland coal hydrocarbon system began with Late Cretaceous-early Tertiary deposition and maturation of the coal source rocks; Late Cretaceous-early Paleocene tilting of the basin; Eocene uplift, exposure, and erosion of the basin margins; Eocene groundwater recharge, which maintained hydrodynamic pressure in the reservoirs; and continued uplift, which caused occlusion of permeability to occur ca. 35 Ma. Present-day erosion is slowly breaching biosome-scale reservoirs and allowing methane to escape to the atmosphere at the outcrop. Oligocene opening of the Rio Grande rift changed the stress regime of the San Juan Basin, allowing fractures to open and fluid to migrate from pre-Cretaceous rocks to the surface. Outcrop seeps have been ongoing throughout Recent geologic time and probably have been active since the coals were first exposed at the outcrop. Methane production from the coal in deeper parts of the basin has not contributed to methane gas seeps at the outcrop. Our analysis calls into question hydrologic assumptions regarding the flow of water in coalbed aquifers and finds that a reexamination of coalbed aquifers in other basins is also warranted.


Other references

Chen, Y.; Cui, Y.; Gong, W., 2017: Crack Propagation Calculations for Optical Fibers under Static Bending and Tensile Loads Using Continuum Damage Mechanics. Static fatigue behavior is the main failure mode of optical fibers applied in sensors. In this paper, a computational framework based on continuum damage mechanics (CDM) is presented to calculate the crack propagation process and failure time of o...

Frazier, Bh, 1982: The art of parenting. Extension leaflet University of yland Cooperative Extension Service: 1983 (148)

Katon, W.; Gonzales, J., 2002: Primary care and treatment of depression: a response to the NIMH "White Papers". General Hospital Psychiatry 24(4): 194-196

Suzuki, A.; Maruyama, T.; Nitta, M.; Komori, T.; Ikuta, S.; Kawamata, T.; Muragaki, Y., 2017: Modified rapid immunohistochemical staining for intraoperative diagnosis of malignant brain tumors. Rapid immunohistochemistry (R-IHC) has been developing mainly as a support technique in the rapid diagnosis of central nervous system tumors; however, there have been problems regarding instability in specimen preparation and immunostaining. To ov...

Wang, L.M.i; Zhang, Q.; Zhang, Q., 2004: Identification of the Key Amino Acids of Glial Cell Line-derived Neurotrophic Factor Family Receptor a1 Involved in Its Biological Function. The Journal of Biological Chemistry 279(1): 9-16

Datta, N.; Das, M.; Bandyopadhyay, B., 1984: Functional anatomy of the olfactory apparatus of puffer fish, Sphaeroides oblongus (Bloch). Zoologica Poloniaeub 1984) 30(1-4): 141-148

Radovancevic, B.; Thomas, C.D.; Radovancevic, R.; Ford, E.L.; Frazier, O.H., 2002: Preemptive antiviral therapy is highly efficient in preventing cytomegalovirus disease in CMV-positive heart transplant recipients. Journal of Heart & Lung Transplantation 21(1): 114, January

Chen, C-Jen.; Li, I-Chuan.; Chien, L-Yin., 2005: An exploration of developmental screening tests for children. Nurses are the first group of professionals to come into contact with infants. If they can use developmental screening tests effectively, they can be expected to make early identification of developmental disabilities in children. This review disc...

Hill, B.; Young, N., 1990: Evaluating support to rural areas in England and Wales. In the array of government policies which have an impact on rural areas, land use is not an ultimate objective but is typically intermediate to some higher aim. This paper presents a hierarchy of objectives for public support to rural areas and re...

Liu, J.; Hill, M.A.; Meininger, G.A., 1993: G protein involvement in arteriolar myogenic reactivity. FASEB Journal 7(3-4): A893