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Title: A Non-Invasive Approach for Elucidating the Spatial Distribution of In-Situ Stress in Deep Subsurface Geologic Formations Considered for CO2 Storage (Task 3 Report Laboratory Characterization of Stress Dependent Wavespeed)

Technical Report ·
DOI:https://doi.org/10.2172/1890651· OSTI ID:1890651
 [1];  [2];  [2]
  1. Battelle Memorial Inst., Columbus, OH (United States)
  2. Univ. of Pittsburgh, PA (United States)

This report presents a summary of Task 3 (Laboratory Experimental Characterization of Stress Dependent Wavespeed in Rocks and Application for In-Situ Stress Estimation) of the project titled “A Non-Invasive Approach for Elucidating the Spatial Distribution of In-Situ Stress in Deep Subsurface Geologic Formations Considered for CO2 Storage”. The main objective of this component of the project was to employ non-destructive techniques to determine how compressional (P)-wave and shear (S)-wave propagation velocities are related to triaxial-stress conditions in laboratory test samples of targeted reservoir rocks. The overarching principle is that such laboratory measurements can provide a basis whereby field measurements of wave-propagation velocities in rocks can be used to ascertain the stress state that would be expected to generate the observed wave-propagation behavior.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
FE0031686
OSTI ID:
1890651
Report Number(s):
d9afe469-e0c9-47c8-9c25-ca2fc9d0ce17
Country of Publication:
United States
Language:
English