Helium release during shale deformation: Experimental validation
Journal Article
·
· Geochemistry, Geophysics, Geosystems
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. of Montana, Missoula, MT (United States)
This paper describes initial experimental results of helium tracer release monitoring during deformation of shale. Naturally occurring radiogenic 4He is present in high concentration in most shales. During rock deformation, accumulated helium could be released as fractures are created and new transport pathways are created. We present the results of an experimental study in which confined reservoir shale samples, cored parallel and perpendicular to bedding, which were initially saturated with helium to simulate reservoir conditions, are subjected to triaxial compressive deformation. During the deformation experiment, differential stress, axial, and radial strains are systematically tracked. Release of helium is dynamically measured using a helium mass spectrometer leak detector. Helium released during deformation is observable at the laboratory scale and the release is tightly coupled to the shale deformation. These first measurements of dynamic helium release from rocks undergoing deformation show that helium provides information on the evolution of microstructure as a function of changes in stress and strain.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- National Science Foundation; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1418467
- Journal Information:
- Geochemistry, Geophysics, Geosystems, Journal Name: Geochemistry, Geophysics, Geosystems Journal Issue: 7 Vol. 17; ISSN 1525-2027
- Publisher:
- American Geophysical UnionCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Helium in Stream Water as a Volcanic Monitoring Tool
|
journal | December 2019 |
Noble Gas Release from Bedded Rock Salt during Deformation
|
journal | June 2019 |
Similar Records
Release of radiogenic noble gases as a new signal of rock deformation
Gas Release as a Deformation Signal
Modeling Dynamic Helium Release as a Tracer of Rock Deformation
Journal Article
·
Sat Oct 08 20:00:00 EDT 2016
· Geophysical Research Letters
·
OSTI ID:1418468
Gas Release as a Deformation Signal
Technical Report
·
Fri Sep 01 00:00:00 EDT 2017
·
OSTI ID:1380203
Modeling Dynamic Helium Release as a Tracer of Rock Deformation
Journal Article
·
Thu Nov 02 20:00:00 EDT 2017
· Journal of Geophysical Research. Solid Earth
·
OSTI ID:1411603