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Title: An integrated methodology for characterizing flow and transportprocesses in fractured rock

Abstract

To investigate the coupled processes involved in fluid andheat flow and chemical transport in the highly heterogeneous,unsaturated-zone (UZ) fractured rock of Yucca Mountain, we present anintegrated modeling methodology. This approach integrates a wide varietyof moisture, pneumatic, thermal, and geochemical isotopic field data intoa comprehensive three-dimensional numerical model for modeling analyses.The results of field applications of the methodology show that moisturedata, such as water potential and liquid saturation, are not sufficientto determine in situ percolation flux, whereas temperature andgeochemical isotopic data provide better constraints to net infiltrationrates and flow patterns. In addition, pneumatic data are found to beextremely valuable in estimating large-scale fracture permeability. Theintegration of hydrologic, pneumatic, temperature, and geochemical datainto modeling analyses is thereby demonstrated to provide a practicalmodeling approachfor characterizing flow and transport processes incomplex fractured formations.

Authors:
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE. Office of the Chief Financial Officer. Other Costsand Credits
OSTI Identifier:
918824
Report Number(s):
LBNL-63411
R&D Project: G6W005; TRN: US0805913
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Journal of China University of Geosciences
Additional Journal Information:
Journal Volume: 18; Journal Issue: SI; Related Information: Journal Publication Date: 06/2007
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; FRACTURED RESERVOIRS; FRACTURES; HEAT FLUX; MOISTURE; PERMEABILITY; PNEUMATICS; SATURATION; SIMULATION; TRANSPORT; WATER; YUCCA MOUNTAIN

Citation Formats

Wu, Yu-Shu. An integrated methodology for characterizing flow and transportprocesses in fractured rock. United States: N. p., 2007. Web.
Wu, Yu-Shu. An integrated methodology for characterizing flow and transportprocesses in fractured rock. United States.
Wu, Yu-Shu. Fri . "An integrated methodology for characterizing flow and transportprocesses in fractured rock". United States. https://www.osti.gov/servlets/purl/918824.
@article{osti_918824,
title = {An integrated methodology for characterizing flow and transportprocesses in fractured rock},
author = {Wu, Yu-Shu},
abstractNote = {To investigate the coupled processes involved in fluid andheat flow and chemical transport in the highly heterogeneous,unsaturated-zone (UZ) fractured rock of Yucca Mountain, we present anintegrated modeling methodology. This approach integrates a wide varietyof moisture, pneumatic, thermal, and geochemical isotopic field data intoa comprehensive three-dimensional numerical model for modeling analyses.The results of field applications of the methodology show that moisturedata, such as water potential and liquid saturation, are not sufficientto determine in situ percolation flux, whereas temperature andgeochemical isotopic data provide better constraints to net infiltrationrates and flow patterns. In addition, pneumatic data are found to beextremely valuable in estimating large-scale fracture permeability. Theintegration of hydrologic, pneumatic, temperature, and geochemical datainto modeling analyses is thereby demonstrated to provide a practicalmodeling approachfor characterizing flow and transport processes incomplex fractured formations.},
doi = {},
journal = {Journal of China University of Geosciences},
number = SI,
volume = 18,
place = {United States},
year = {2007},
month = {8}
}