Patent · US Expired

Method for the tertiary recovery of petroleum by flooding with hot water and an aqueous alkaline solution

US4223730A · kind A · utility

5Cited by

8References

9Claims

0Family size

Assignee

Wintershall Holding GmbH · DE

Inventors

Walther Schulz · Vechta, DE
Wilhelm Gebetsberger · Barnstorf, DE

Key dates

Filing date	Jun 23, 1978
Grant date	Sep 23, 1980
Priority date	—
Expiry date	Jun 23, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG05D23/1925
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for the recovery of crude petroleum from mineral oil deposits, utilizing hot water flooding or alkali containing hot water flooding is described.

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