Energy Resources Program
Press Releases, Technical Announcements, Publications, Field Reports, and Science Highlights.
Thursday, December 20, 2012
USGS Publication: Scientific Investigations Report 2012–5159The Upper Cretaceous Austin Chalk forms a low-permeability, onshore Gulf of Mexico reservoir that produces oil and gas from major fractures oriented parallel to the underlying Lower Cretaceous shelf edge. Horizontal drilling links these fracture systems to create an interconnected network that drains the reservoir.
Categories: All, Oil & Gas, National Oil and Gas Assessments, Regional Studies, Gulf Coast, Type: USGS Publication
Wednesday, December 19, 2012
USGS Publication: Open-File Report 2012–1254The purpose of this report is to present new vitrinite reflectance data collected from Cretaceous marine shales and coals in the Bighorn Basin to better characterize the thermal maturity and petroleum potential of these rocks.
Categories: All, Coal, Coal Quality, Organic Petrology, World Coal Quality Inventory, Type: USGS Publication
Monday, December 17, 2012
Scanned copies of three legacy USGS publications with detailed stratigraphy of Late Cretaceous and Early Tertiary rocks in eastern Utah and western Colorado are now available online. MF 1050: five measured sections, in the Mesa Verde Group and Wasatch Formation, in the vicinity of De Beque Colorado including palynological data. MF-1997: eleven detailed measured sections along the Douglas Creek Arch in eastern Utah and western Colorado, including mollusk fossil and palynological data. I-1974: detailed cross sections correlating Upper Cretaceous and Lower Tertiary rocks between the Uinta and Piceance Basins of eastern Utah and western Colorado.
Categories: All, Oil Shale, Other Energy, Type: USGS Publication
Thursday, December 13, 2012
Outside Publication: Mathematical GeosciencesMathematicians and geochemists have long realized that compositional data intrinsically exhibit a structure prone to spurious and induced correlations. This paper demonstrates, using the Na–Cl–Br system, that these mathematical problems are exacerbated in the study of sedimentary basin brines by such processes as the evaporation or dissolution of salts owing to their high salinities.
Categories: All, Environment Aspects, Produced Waters, Geochemistry & Geophysics, Geochemistry Research, Regional Studies, Appalachian Basin, Type: Outside Publication
Monday, December 03, 2012
USGS Publication: Scientific Investigations Map 3214
This publication presents a thermal maturity map of Devonian shale in the Illinois, Michigan, and Appalachian basins. The map shows outlines of the three basins (dashed black lines) and an outline of Devonian shale (solid black lines).
Categories: All, Oil & Gas, National Oil and Gas Assessments, Regional Studies, Appalachian Basin, Type: USGS Publication
Wednesday, November 28, 2012
USGS Publication: Fact Sheet 2012–3120, v. 1.1
Using a probabilistic geology-based methodology, a team of U.S. Geological Survey (USGS) scientists recently assessed the remaining recoverable oil in 10 oil fields of the Los Angeles Basin in southern California. The results of the assessment suggest that between 1.4 and 5.6 billion barrels of additional oil could be recovered from those fields with existing technology.
Categories: All, Oil & Gas, National Oil and Gas Assessments, Reserve Growth, Type: USGS Publication
Outside Publication: Natural Resources Research
There are multiple ways to characterize uncertainty in the assessment of coal resources, but not all of them are equally satisfactory. Increasingly, the tendency is toward borrowing from the statistical tools developed in the last 50 years for the quantitative assessment of other mineral commodities. Here, we briefly review the most recent of such methods and formulate a procedure for the systematic assessment of multi-seam coal deposits taking into account several geological factors, such as fluctuations in thickness, erosion, oxidation, and bed boundaries.
Categories: All, Coal, Coal Assessments, Type: Outside Publication
Friday, November 16, 2012
USGS Publication: Scientific Investigations Report 2012–5146
The Amerasia Basin Petroleum Province encompasses the Canada Basin and the sediment prisms along the Alaska and Canada margins, outboard from basinward margins (hingelines) of the rift shoulders that formed during extensional opening of the Canada Basin. The province includes the Mackenzie delta and slope, the outer shelves and marine slopes along the Arctic margins of Alaska and Canada, and the deep Canada Basin.
Categories: All, Oil & Gas, National Oil and Gas Assessments, World Petroleum Assessment, Regional Studies, Alaska, Arctic, Type: USGS Publication
USGS Publication: Scientific Investigations Report 2012–5147
The Arctic Alaska Petroleum Province encompasses all lands and adjacent continental shelf areas north of the Brooks Range-Herald arch tectonic belts and south of the northern (outboard) margin of the Alaska rift shoulder. Even though only a small part is thoroughly explored, it is one of the most prolific petroleum provinces in North America, with total known resources (cumulative production plus proved reserves) of about 28 billion barrels of oil equivalent.
Categories: All, Oil & Gas, National Oil and Gas Assessments, Regional Studies, Alaska, Arctic, Type: USGS Publication
Page Last Modified: Wednesday, December 03, 2014