USGS Science⌕ Search

Geology topics

Joyce E. Kibler

Publications and source records attributed to Joyce E. Kibler.

4 recordsLinked to original sources
USGS2014

Petrophysical properties, mineralogy, fractures, and flow tests in 25 deep boreholes at Yucca Mountain, Nevada

As part of a site investigation for the disposal of radioactive waste, numerous boreholes were drilled into a sequence of Miocene pyroclastic flows and related deposits at Yucca Mountain, Nevada. This report contains displays of data from 25 boreholes drilled during 1979–1984, relatively early in the site investigation program. Geophysical logs and hydrological tests were conducted in the boreholes; core and cuttings analyses yielded data on mineralogy, fractures, and physical properties; and geologic descriptions provided lithology boundaries and the degree of welding of the rock units. Porosity and water content were computed from the geophysical logs, and porosity results were combined with mineralogy from x-ray diffraction to provide whole-rock volume fractions. These data were composited on plates and used by project personnel during the 1990s. Improvements in scanning and computer technology now make it possible to publish these displays.

Nevada↗
USGS2007

Distribution of fluids and pressures in the Wind River Basin, Wyoming: Chapter 7 in Petroleum systems and geologic assessment of oil and gas resources in the Wind River Basin Province, Wyoming

To examine the state of hydrocarbons and water in the Wind River Basin of Wyoming, the following data types are compiled and presented at the basin scale: fluid type, pressure, and temperature from drillstem tests; watersalinity and cumulative hydrocarbon production from oil and gas wells; vitrinite reflectance data; and sonic well logs. The spatial distribution of produced fluids shows the nearly ubiquitous presence of mobile water, even in highly productive gas-charged formations. Sonic logs record a basin wide velocity decrease in the Lower Cretaceous Thermopolis Shale through the Upper Cretaceous Cody Shale that is attributed to a combination of paleo-overpressuring and present-day overpressuring. Pressure-elevation plots and mud weights reveal the presence of two large pressure compartments in the Madden area, one above the Waltman Shale Member of the Paleocene Fort Union Formation and the other below it. Temperature data reveal hot and cold spots around structures in the marginal parts of the basin where the Waltman Shale Member of the Fort Union Formation is absent. The highest temperature gradients are in the upper pressure compartment in the Madden area. Vitrinite reflectance data record little change with increasing depth throughout much of the geologic section in shallow parts of the basin and a steady increase of log (R o ) with depth in the deep parts of the basin. The varied distribution of fluids, pressure, and temperature reflect the complex history of subsidence, thrusting, hydrocarbon generation, water migration, and uplift in and marginal to this large, asymmetric intermontane basin.

Wyoming↗
USGS2003

A catalog of porosity and permeability from core plugs in siliciclastic rocks

Porosity and permeability measurements on cored samples from siliciclastic formations are presented for 70 data sets, taken from published data and descriptions. Data sets generally represent specific formations, usually from a limited number of wells. Each data set is represented by a written summary, a plot of permeability versus porosity, and a digital file of the data. The summaries include a publication reference, the geologic age of the formation, location, well names, depth range, various geologic descriptions, and core measurement conditions. Attributes such as grain size or depositional environment are identified by symbols on the plots. An index lists the authors and date, geologic age, formation name, sandstone classification, location, basin or structural province, and field name.

Open-File Report↗