Patent · US Active

Method to improve conformance control in carbon dioxide flooding

US9309754B2 · kind B2 · utility

0Cited by

11References

19Claims

0Family size

Assignee

SAUDI ARABIAN OIL COMPANY · SA

Inventors

Fawaz M. Al-Otaibi · Dhahran, SA
Sunil Kokal · Dhahran, SA

Key dates

Filing date	Mar 5, 2013
Grant date	Apr 12, 2016
Priority date	—
Expiry date	Nov 30, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P90/70
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Embodiments of the invention generally relate to the field of oil recovery from reservoirs. More specifically, embodiments of the invention relate to enhancing the recovery of oil using carbon dioxide flooding processes by providing a process to improve oil recovery from a reservoir by injecting through a well into a reservoir a heavy oil slug composition that includes heavy oil that is mixed carbon dioxide. Following injecting the heavy oil slug composition, a carbon dioxide slug that includes carbon dioxide is injected through the well into the reservoir.

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