You need JavaScript to view this

Thickening agent for flood water in secondary recovery of oil and for other aqueous salt solutions

Patent:

Abstract

Alkenyl-aromatic polymer sulfonates are good thickeners for some aqueous solutions, but addition of salts to such solutions reduces the desirable viscosity. High-molecular, water-soluble alkenyl-aromatic polymers which carry sulfonic acid or sulfonate groups substituted at the aromatic nuclei yield thickened solutions (e.g., for waterflooding) which are not influenced by the presence of water-soluble salts. Such polymers are derivatives of polyvinyltoluene, alone or in combination with about 5% acrylonitrile. It was also found that such thickening agents are less adsorbed on the rock matrix in a waterflood formation. (1 claim)
Authors:
Publication Date:
Apr 14, 1966
Product Type:
Patent
Report Number:
DE 1214180
Reference Number:
EDB-81-043509
Resource Relation:
Patent File Date: Filed date 30 Jul 1962
Subject:
02 PETROLEUM; OIL WELLS; WATERFLOODING; ADDITIVES; ACRYLONITRILE; DRILLING FLUIDS; ENHANCED RECOVERY; PETROLEUM; PETROLEUM SULFONATES; POLYMERS; SALTS; WELL STIMULATION; ENERGY SOURCES; ESTERS; FLUID INJECTION; FLUIDS; FOSSIL FUELS; FUELS; NITRILES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; RECOVERY; STIMULATION; SULFONATES; SULFONIC ACID ESTERS; WELLS; 020300* - Petroleum- Drilling & Production
OSTI ID:
6896364
Country of Origin:
Germany
Language:
German
Submitting Site:
TUL
Size:
Pages: v
Announcement Date:

Patent:

Citation Formats

Roth, H H. Thickening agent for flood water in secondary recovery of oil and for other aqueous salt solutions. Germany: N. p., 1966. Web.
Roth, H H. Thickening agent for flood water in secondary recovery of oil and for other aqueous salt solutions. Germany.
Roth, H H. 1966. "Thickening agent for flood water in secondary recovery of oil and for other aqueous salt solutions." Germany.
@misc{etde_6896364,
title = {Thickening agent for flood water in secondary recovery of oil and for other aqueous salt solutions}
author = {Roth, H H}
abstractNote = {Alkenyl-aromatic polymer sulfonates are good thickeners for some aqueous solutions, but addition of salts to such solutions reduces the desirable viscosity. High-molecular, water-soluble alkenyl-aromatic polymers which carry sulfonic acid or sulfonate groups substituted at the aromatic nuclei yield thickened solutions (e.g., for waterflooding) which are not influenced by the presence of water-soluble salts. Such polymers are derivatives of polyvinyltoluene, alone or in combination with about 5% acrylonitrile. It was also found that such thickening agents are less adsorbed on the rock matrix in a waterflood formation. (1 claim)}
place = {Germany}
year = {1966}
month = {Apr}
}