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Title: Completion Report for Well ER-EC-4

Abstract

Well ER-EC-4 was drilled for the US Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the U.S Department of Energy's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 263.7 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,062.8 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static, water level was measured at the depth of 228.3 meters, two months after installation of the completion string. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters, and 35 sidewall samples taken at various depths below 286.5 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well was collared in basalt and penetrated Tertiary-age lava and tuff of themore » Thirsty Canyon Group, the Volcanics of Fortymile Canyon, and the Timber Mountain Group. The preliminary geologic interpretation of data from this well helps pinpoint the location of the western margin of the Timber Mountain caldera complex in the southern Nevada volcanic field.« less

Authors:
Publication Date:
Research Org.:
Bechtel Nevada Corp. (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
764634
Report Number(s):
DOE/NV/11718-397
TRN: US0005019
DOE Contract Number:  
AC08-96NV11718
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Sep 2000
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; WELL DRILLING; NEVADA TEST SITE; TUFF; WATER WELLS; MONITORING; REMEDIAL ACTION; HYDROLOGY; SITE CHARACTERIZATION; WELL COMPLETION; STRATIGRAPHY; UGTA; PAHUTE MESA; OASIS VALLEY; TIMBER MOUNTAIN CALDERA COMPLEX; ASH-FLOW TUFF

Citation Formats

Townsend, M J. Completion Report for Well ER-EC-4. United States: N. p., 2000. Web. doi:10.2172/764634.
Townsend, M J. Completion Report for Well ER-EC-4. United States. https://doi.org/10.2172/764634
Townsend, M J. 2000. "Completion Report for Well ER-EC-4". United States. https://doi.org/10.2172/764634. https://www.osti.gov/servlets/purl/764634.
@article{osti_764634,
title = {Completion Report for Well ER-EC-4},
author = {Townsend, M J},
abstractNote = {Well ER-EC-4 was drilled for the US Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the U.S Department of Energy's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 263.7 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,062.8 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static, water level was measured at the depth of 228.3 meters, two months after installation of the completion string. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters, and 35 sidewall samples taken at various depths below 286.5 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well was collared in basalt and penetrated Tertiary-age lava and tuff of the Thirsty Canyon Group, the Volcanics of Fortymile Canyon, and the Timber Mountain Group. The preliminary geologic interpretation of data from this well helps pinpoint the location of the western margin of the Timber Mountain caldera complex in the southern Nevada volcanic field.},
doi = {10.2172/764634},
url = {https://www.osti.gov/biblio/764634}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2000},
month = {Fri Sep 01 00:00:00 EDT 2000}
}