Permeability change near instrumentation holes in jointed rock: implications for the tuff radionuclide-migration field experiment
Abstract
In order to assess in situ joint permeability near waste repositories, it has been proposed that instrumentation holes with axes parallel to the joint plane be drilled. However, the drill holes after the normal stress across the joint. The resultant stress concentration decreases the joint aperture and can significantly affect the joint permeability. Different intersections of the hold axis relative to the joint plane were examined utilizing a plane-strain, elastic analysis. It was found that a tangential joint intersection minimized the normal stress change. Stress along the joint increased by 10 to 15 percent and the permeability-aperture product decreased to 65 to 70 percent of its original flow.
- Authors:
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- OSTI Identifier:
- 59468
- Report Number(s):
- SAND-81-2584
ON: DE82018552
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: Jun 1982
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 05 NUCLEAR FUELS; 58 GEOSCIENCES; RADIOACTIVE WASTE DISPOSAL; RADIONUCLIDE MIGRATION; GEOLOGIC DEPOSITS; TUFF; JOINTS; PERMEABILITY; NEVADA TEST SITE; UNDERGROUND DISPOSAL; FRACTURES; STRESSES; HOLES; DRILLING; FLUID FLOW; Yucca Mountain Project
Citation Formats
Rechard, R P, and Schuler, K W. Permeability change near instrumentation holes in jointed rock: implications for the tuff radionuclide-migration field experiment. United States: N. p., 1982.
Web. doi:10.2172/59468.
Rechard, R P, & Schuler, K W. Permeability change near instrumentation holes in jointed rock: implications for the tuff radionuclide-migration field experiment. United States. https://doi.org/10.2172/59468
Rechard, R P, and Schuler, K W. 1982.
"Permeability change near instrumentation holes in jointed rock: implications for the tuff radionuclide-migration field experiment". United States. https://doi.org/10.2172/59468. https://www.osti.gov/servlets/purl/59468.
@article{osti_59468,
title = {Permeability change near instrumentation holes in jointed rock: implications for the tuff radionuclide-migration field experiment},
author = {Rechard, R P and Schuler, K W},
abstractNote = {In order to assess in situ joint permeability near waste repositories, it has been proposed that instrumentation holes with axes parallel to the joint plane be drilled. However, the drill holes after the normal stress across the joint. The resultant stress concentration decreases the joint aperture and can significantly affect the joint permeability. Different intersections of the hold axis relative to the joint plane were examined utilizing a plane-strain, elastic analysis. It was found that a tangential joint intersection minimized the normal stress change. Stress along the joint increased by 10 to 15 percent and the permeability-aperture product decreased to 65 to 70 percent of its original flow.},
doi = {10.2172/59468},
url = {https://www.osti.gov/biblio/59468},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 1982},
month = {Tue Jun 01 00:00:00 EDT 1982}
}
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