Patent · US Active

Photoacoustic nanotracers

US11840919B2 · kind B2 · utility

0Cited by

19References

14Claims

0Family size

Assignee

SAUDI ARABIAN OIL COMPANY · SA

Inventors

Jesus Manuel Felix Servin · Dhahran, SA
Nan Shi · Newark, US
Amr I. Abdel-Fattah · Dhahran, SA

Key dates

Filing date	Jan 4, 2021
Grant date	Dec 12, 2023
Priority date	—
Expiry date	Jan 23, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01V11/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Subsurface environments can be characterized using photoacoustic nanotracers. A solution including a photoacoustic nanotracer is formed. The solution is injected into the subsurface environment. Produced fluids are analyzed for the photoacoustic nanotracer. A breakthrough curve is built based, at least in part, on the analysis. The photoacoustic nanotracers can be based on plasmonic gold nanoparticles, silver nanoparticles, or both.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.