Energy Resources Program
Press Releases, Technical Announcements, Publications, Field Reports, and Science Highlights.
Friday, May 31, 2013
USGS Publication: Open-File Report 2013–1118A variety of sediment and rock samples were collected in and around Tuba City Open Dump in 2008. Whole rock geochemistry has already been reported for sediment/rock/dune samples in Johnson and others (2008). Many of these samples were sieved in order to get grain-size distributions. The resulting grain-size distributions along with new whole rock geochemistry associated with each grain-size category are provided in this follow-up report. In addition, whole rock geochemistry from cores collected at sites WP-03 and WP-14 and a few X-ray diffraction samples are provided.
Categories: All, Other Energy, Uranium, Geochemistry & Geophysics, Geochemistry Research, Type: USGS Publication
Natural gas is an important component of the energy mix in the U.S, producing greater energy yield per unit weight and less pollution compared to coal and oil. Most of the world's natural gas resource is thermogenic, produced in the geologic environment over time by high temperature and pressure within deposits of oil, coal, and shale. About 20 percent of the natural gas resource, however, is produced by microorganisms (microbes). Microbes potentially could be used to generate economic quantities...
Categories: All, Oil & Gas, Coalbed Gas, Coal, Geochemistry & Geophysics, Geochemistry Research, Type: USGS Publication
Wednesday, May 29, 2013
Halite and the sodium bicarbonate mineral nahcolite were deposited during the saline phase of Eocene Lake Uinta in the Piceance Basin, western Colorado. Variations in the area of saline mineral deposition through time were interpreted from studies of core and outcrop. Saline minerals were extensively leached by groundwater, so the original extent of saline deposition was estimated from the distribution of empty vugs and collapse breccias. Vugs and breccias strongly influence groundwater movement, so determining where leaching has occurred is an important consideration for in-situ oil shale extraction methods currently being developed.
Categories: All, Oil Shale, Other Energy, Type: USGS Publication
USGS Publication: Scientific Investigations Report 2013–5063The reserve growth of fields has been a topic for ongoing discussion for over half a century and will continue to be studied well into the future. Understanding past methods of estimating future volumes based on the data assembly methods that have been used can lead to a better understanding of their applicability.
Categories: All, Oil & Gas, Reserve Growth, Type: USGS Publication
Tuesday, May 28, 2013
Outside Publication: International Journal of Coal Geology In spite of its large endowment of coal resources, recent studies have indicated that United States coal production is destined to reach a maximum and begin an irreversible decline sometime during the middle of the current century. However, studies and assessments illustrating coal reserve data essential for making accurate forecasts of United States coal production have not been compiled on a national basis.
Categories: All, Coal, Coal Assessments, Type: Outside Publication
Friday, May 24, 2013
USGS Publication: NOGA Map Updates
The main objective of the National Assessment of Oil and Gas Project is to assess the potential for undiscovered oil and natural gas resources of the onshore United States. These maps include the latest updates to the basin assessments.
Categories: All, Oil & Gas, National Oil and Gas Assessments, Coalbed Gas, Type: USGS Publication
Wednesday, May 22, 2013
Estimated ultimate recoveries (EURs) are a key component in determining productivity of wells in continuous-type oil and gas reservoirs. EURs form the foundation of a well-performance-based assessment methodology initially developed by the USGS (USGS; Schmoker, 1999). This methodology was formally reviewed by the American Association of Petroleum Geologists Committee on Resource Evaluation (Curtis and others, 2001).
Categories: All, Oil & Gas, National Oil and Gas Assessments, Type: USGS Publication
Wednesday, May 15, 2013
This analysis shows the important contribution that stranded gas from central Asia, Russia, Southeast Asia, and Australia can make in meeting the projected demand for gas imports of China, India, Japan, and South Korea from 2020 to 2040. The estimated delivered costs of pipeline gas from stranded fields in Russia and Central Asia at Shanghai, China, are generally less than delivered costs of liquefied natural gas (LNG). Australia and Malaysia are initially the lowest-costs LNG suppliers. In the concluding section, it is argued that Asian LNG demand is price-sensitive and current Asian LNG pricing procedures are unlikely to be sustainable for gas import demand to attain maximum potential growth. Resource volumes in stranded fields evaluated can nearly meet projected import demands.
Categories: All, Oil & Gas, Economics, Type: Outside Publication
Tuesday, May 14, 2013
Scientists returned from a 15‑day research expedition in the northern Gulf of Mexico with the best high-resolution seismic data and imagery ever obtained of sediments with high gas hydrate saturations.
Categories: All, Oil & Gas, Other Energy, Gas Hydrates, Regional Studies, Gulf Coast, Type: Technical Announcement
Page Last Modified: Wednesday, December 03, 2014