Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Thickened heavy brines

Patent ·
OSTI ID:6931196

A thickened brine solution useful as a well servicing fluid is prepared, said solution consisting essentially of water, at least 20% by weight zinc bromide, calcium bromide, and a viscosifying amount of hydroxyethyl cellulose.

Assignee:
NL Industries, Inc.
Patent Number(s):
US 4420406
OSTI ID:
6931196
Country of Publication:
United States
Language:
English