The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2020
Filed:
Jan. 19, 2018
Lawrence Livermore National Security, Llc, Livermore, CA (US);
William L. Bourcier, Livermore, CA (US);
Sarah K. Roberts, Livermore, CA (US);
Jeffery J. Roberts, Livermore, CA (US);
Souheil M. Ezzedine, Berkeley, CA (US);
Jonathan D. Hunt, Dublin, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
Abstract
A system for blocking fast flow paths in geological formations includes preparing a solution of colloidal silica having a nonviscous phase and a solid gel phase. The solution of colloidal silica is injected into the geological formations while the solution of colloidal silica is in the nonviscous phase. The solution of colloidal silica is directed into the fast flow paths and reaches the solid gel phase in the fast flow paths thereby blocking flow of fluid in the fast paths.