Patent · US Expired

Process for optimizing the properties of aqueous polymer solutions used in polymer flooding

US4675348A · kind A · utility

3Cited by

2References

5Claims

0Family size

Assignee

BASF SE

Inventors

Franz-Dieter Martischius · Neustadt, DE
Dieter Karau
Werner Arnold · Plankstadt, DE
Klaus Barthold · Mannheim, DE

Key dates

Filing date	Jun 13, 1985
Grant date	Jun 23, 1987
Priority date	—
Expiry date	Jun 13, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S507/936
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for optimizing the properties of aqueous polymer solutions used for polymer flooding which comprises treating the polymer solutions under turbulent flow conditions in dynamic fluid dispersing or pumping equipment such that the residence time of the polymer solution in this equipment is less than approximately 20 seconds and the pump energy used is from about 1 to about 15 watts/liter of solution processed. This process permits the optimization of flow properties important in polymer flooding which results in the improved efficiency of the polymer flooding process.

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