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Title: Geophysical well-log measurements in three drill holes at Salt Valley, Utah

Abstract

Three exploratory drill holes were drilled at Salt Valley, Utah, to study the geologic, physical, geochemical, and hydrologic properties of the evaporite sequence in the Permian Paradox Member of the Hermosa Formation. The results of these studies will be used to help to determine the suitability of salt deposits in the Paradox basin as a storage medium for radioactive waste material. The following geophysical well-log measurements were made in each of the three drill holes: (1) density, (2) neutron, (3) acoustic velocity, (4) normal resistivity, and (5) gamma ray. Widely spaced resistivity and conductivity well-log measurements were made in the deep drill hole. Each of these well-log measurements shows the division of the evaporite sequence into halite and interbed sections. At the present time the most useful well-logging measurements for determining the individual lithologies in an evaporite sequence are gamma ray, neutron, density, and acoustic velocity. The high resistivity contrast between the drilling fluid (0.5 ohm-m) and salt (10,000 ohm-m) makes it difficult to obtain quantitative measurements of electrical properties in an evaporite sequence. Tests of widely spaced electrode configurations show that the effects of the brine on the resistivity measurements can be reduced, and the depth of investigation increased,more » by increasing the source-receiver electrode spacing. Tests of a single-coil induction probe show good resolution of the contrasting electrical properties of the various interbed lithologies.« less

Authors:
; ;
Publication Date:
Research Org.:
US Geological Survey, Denver, CO (United States)
OSTI Identifier:
6627983
Report Number(s):
USGS-OFR-81-36
TRN: 81-004631
DOE Contract Number:  
AA05-78ET41506
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; BOREHOLES; WELLS; RADIOACTIVE WASTE STORAGE; FEASIBILITY STUDIES; SALT DEPOSITS; DENSITY; GEOCHEMISTRY; HYDROLOGY; LITHOLOGY; UTAH; CAVITIES; CHEMISTRY; GEOLOGIC DEPOSITS; MANAGEMENT; NORTH AMERICA; PHYSICAL PROPERTIES; ROCKY MOUNTAIN REGION; STORAGE; USA; WASTE MANAGEMENT; WASTE STORAGE; 052002* - Nuclear Fuels- Waste Disposal & Storage

Citation Formats

Daniels, J J, Hite, R J, and Scott, J H. Geophysical well-log measurements in three drill holes at Salt Valley, Utah. United States: N. p., 1980. Web. doi:10.2172/6627983.
Daniels, J J, Hite, R J, & Scott, J H. Geophysical well-log measurements in three drill holes at Salt Valley, Utah. United States. https://doi.org/10.2172/6627983
Daniels, J J, Hite, R J, and Scott, J H. 1980. "Geophysical well-log measurements in three drill holes at Salt Valley, Utah". United States. https://doi.org/10.2172/6627983. https://www.osti.gov/servlets/purl/6627983.
@article{osti_6627983,
title = {Geophysical well-log measurements in three drill holes at Salt Valley, Utah},
author = {Daniels, J J and Hite, R J and Scott, J H},
abstractNote = {Three exploratory drill holes were drilled at Salt Valley, Utah, to study the geologic, physical, geochemical, and hydrologic properties of the evaporite sequence in the Permian Paradox Member of the Hermosa Formation. The results of these studies will be used to help to determine the suitability of salt deposits in the Paradox basin as a storage medium for radioactive waste material. The following geophysical well-log measurements were made in each of the three drill holes: (1) density, (2) neutron, (3) acoustic velocity, (4) normal resistivity, and (5) gamma ray. Widely spaced resistivity and conductivity well-log measurements were made in the deep drill hole. Each of these well-log measurements shows the division of the evaporite sequence into halite and interbed sections. At the present time the most useful well-logging measurements for determining the individual lithologies in an evaporite sequence are gamma ray, neutron, density, and acoustic velocity. The high resistivity contrast between the drilling fluid (0.5 ohm-m) and salt (10,000 ohm-m) makes it difficult to obtain quantitative measurements of electrical properties in an evaporite sequence. Tests of widely spaced electrode configurations show that the effects of the brine on the resistivity measurements can be reduced, and the depth of investigation increased, by increasing the source-receiver electrode spacing. Tests of a single-coil induction probe show good resolution of the contrasting electrical properties of the various interbed lithologies.},
doi = {10.2172/6627983},
url = {https://www.osti.gov/biblio/6627983}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1980},
month = {Tue Jan 01 00:00:00 EST 1980}
}