First-passage-time modeling of transport in fractured rock

Conference · Thu Aug 01 04:00:00 EDT 1996

OSTI ID:264477

Becker, M W ^[1]

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1. Los Alamos National Lab., NM (United States)

This paper presents theory intended for the design and interpretation of tracer tests in fractured rock. The objective is to provide an understanding of experiments in which particulate and solute tracers are injected simultaneously. In such experiments, it is expected that the solute tracer will diffuse into the rock matrix, while the particulates will be confined to the fractures. The theory allows information about matrix diffusion to be extracted from the breakthrough curve. Furthermore, it can accommodate tests in which a non-ideal source is used, and where some of the withdrawn fluid is re-injected. The solution is performed in Laplace space and transformed to the time domain using a commercial spreadsheet.

• OSTI ID: 264477
• Report Number(s): CONF-951155--; ISBN 1-55899-315-0
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
DATA ANALYSIS
FLOW MODELS
FRACTURED RESERVOIRS
GEOLOGIC FRACTURES
GROUND WATER
POROSITY
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
RESERVOIR ROCK
SITE CHARACTERIZATION
TRACER TECHNIQUES
UNDERGROUND DISPOSAL
YUCCA MOUNTAIN