Using colloidal silica as isolator, diverter and blocking agent for subsurface geological applications

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9909052
SERIAL NO

13722843

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bourcier, William L Livermore, US 28 228
Ezzedine, Souheil M Berkeley, US 2 33
Hunt, Jonathan D Dublin, US 2 33
Roberts, Jeffery J Livermore, US 6 42
Roberts, Sarah K Livermore, US 2 33

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 6, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 6, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00