Patent · US Active

Seismic assisted flooding processes for oil recovery in carbonates

US11274535B1 · kind B1 · utility

0Cited by

1References

12Claims

0Family size

Assignee

SAUDI ARABIAN OIL COMPANY · SA

Inventors

Subhash Chandrabose Ayirala · Dhahran, SA
Abdulaziz S. Al-Qasim · Dammam, SA
Ali Yousef · Dhahran, SA

Key dates

Filing date	Aug 28, 2020
Grant date	Mar 15, 2022
Priority date	—
Expiry date	Aug 28, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B49/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An oil recovery method may include injecting 0.05 to 0.25 pore volumes of low-salinity water having 4,000-8,000 ppm of total dissolved solids into a reservoir, and then applying seismic stimulation to the reservoir for a predetermined duration. The steps of injecting low-salinity water and applying seismic stimulation are repeated until 0.25 to 1.0 pore volumes of the low-salinity water has been added to the reservoir. Then, high-salinity water having 35,000 to 57,000 ppm of total dissolved solids is introduced to the reservoir.

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