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Title: Oil recovery process using improved thickened aqueous flooding liquids. [polysaccharide B-1459]

Abstract

The specification discloses a process for recovering oil from a subterranean reservoir which process utilizes a thickened flooding liquid containing polysaccharide B-1459. In the process the polysaccharide B-1459 is imparted with superior viscosity by first prehydrating it with fresh or deionized water before mixing with another aqueous component, for example brine water containing large amounts or inorganic ions, that is, hard water. The invention comprises the polysaccharide B-1459 which has been prehydrated in the fresh or deionized aqueous medium and then mixed with hard water. The process for imparting viscosity to polysaccharide B-1459 is an improvement over the prior art in that a higher viscosity is obtained while using the same amount of polysaccharide that has been obtained by hydrating the polysaccharide in hard or brine water initially.

Inventors:
; ;
Publication Date:
OSTI Identifier:
5082078
Patent Number(s):
US 4078607
Assignee:
Texaco Inc.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 13 Sep 1976
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; OIL WELLS; WATERFLOODING; ENHANCED RECOVERY; PETROLEUM; POLYSACCHARIDES; WELL STIMULATION; CARBOHYDRATES; ENERGY SOURCES; FLUID INJECTION; FOSSIL FUELS; FUELS; ORGANIC COMPOUNDS; SACCHARIDES; WELLS; 020300* - Petroleum- Drilling & Production

Citation Formats

Carter, W H, Christopher, C A, and Jefferson, T. Oil recovery process using improved thickened aqueous flooding liquids. [polysaccharide B-1459]. United States: N. p., 1978. Web.
Carter, W H, Christopher, C A, & Jefferson, T. Oil recovery process using improved thickened aqueous flooding liquids. [polysaccharide B-1459]. United States.
Carter, W H, Christopher, C A, and Jefferson, T. Tue . "Oil recovery process using improved thickened aqueous flooding liquids. [polysaccharide B-1459]". United States.
@article{osti_5082078,
title = {Oil recovery process using improved thickened aqueous flooding liquids. [polysaccharide B-1459]},
author = {Carter, W H and Christopher, C A and Jefferson, T},
abstractNote = {The specification discloses a process for recovering oil from a subterranean reservoir which process utilizes a thickened flooding liquid containing polysaccharide B-1459. In the process the polysaccharide B-1459 is imparted with superior viscosity by first prehydrating it with fresh or deionized water before mixing with another aqueous component, for example brine water containing large amounts or inorganic ions, that is, hard water. The invention comprises the polysaccharide B-1459 which has been prehydrated in the fresh or deionized aqueous medium and then mixed with hard water. The process for imparting viscosity to polysaccharide B-1459 is an improvement over the prior art in that a higher viscosity is obtained while using the same amount of polysaccharide that has been obtained by hydrating the polysaccharide in hard or brine water initially.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {3}
}