Apparatus and method for dynamic acousto-elasticity technique measurements at simulated subsurface pressures

Patent · 20 April 2021

OSTI ID:1823874

Roberts, Peter M.; Goodman, Harvey Edwin; Remillieux, Marcel C.

An apparatus (10) and method for performing nonlinear elasticity measurements using the dynamic acousto-elasticity technique (DAET) at simulated subsurface conditions in the laboratory, are described. The current state-of-the-art for measuring nonlinear elasticity parameters using DAET is limited to ambient pressure conditions on the bench-top. The present invention permits nonlinear parameter measurements at controlled sample internal fluid pore pressures (52) and external confining stress (44), (50) conditions.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• Assignee: Triad National Security, LLC (Los Alamos, NM); Chevron U.S.A. Inc. (San Ramon, CA)
• Patent Number(s): 10,983,036
• Application Number: 16/343,986
• OSTI ID: 1823874
• Country of Publication: United States
• Language: English