Aqueous flooding methods for tertiary oil recovery
Abstract
A method of aqueous flooding of subterranean oil bearing formation for tertiary oil recovery involves injecting through a well into the formation a low alkaline pH aqueous sodium bicarbonate flooding solution. The flooding solution's pH ranges from about 8.25 to 9.25 and comprises from 0.25 to 5 weight percent and preferably about 0.75 to 3.0 weight percent of sodium bicarbonate and includes a petroleum recovery surfactant of 0.05 to 1.0 weight percent and between 1 and 20 weight percent of sodium chloride. After flooding, an oil and water mixture is withdrawn from the well and the oil is separated from the oil and water mixture.
- Inventors:
-
- Bartlesville, OK
- Issue Date:
- Research Org.:
- IIT Research Institute (Chicago, IL)
- OSTI Identifier:
- 866900
- Patent Number(s):
- 4817715
- Assignee:
- IIT Research Institute (Chicago, IL)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- FC22-83FE60149
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- aqueous; flooding; methods; tertiary; oil; recovery; method; subterranean; bearing; formation; involves; injecting; alkaline; ph; sodium; bicarbonate; solution; ranges; 25; comprises; weight; percent; preferably; 75; petroleum; surfactant; 05; 20; chloride; water; mixture; withdrawn; separated; ph range; oil bearing; sodium bicarbonate; tertiary oil; water mixture; sodium chloride; oil recovery; weight percent; subterranean oil; aqueous sodium; bearing formation; ph aqueous; petroleum recovery; alkaline ph; aqueous flooding; involves injecting; /166/507/
Citation Formats
Peru, Deborah A. Aqueous flooding methods for tertiary oil recovery. United States: N. p., 1989.
Web.
Peru, Deborah A. Aqueous flooding methods for tertiary oil recovery. United States.
Peru, Deborah A. Sun .
"Aqueous flooding methods for tertiary oil recovery". United States. https://www.osti.gov/servlets/purl/866900.
@article{osti_866900,
title = {Aqueous flooding methods for tertiary oil recovery},
author = {Peru, Deborah A},
abstractNote = {A method of aqueous flooding of subterranean oil bearing formation for tertiary oil recovery involves injecting through a well into the formation a low alkaline pH aqueous sodium bicarbonate flooding solution. The flooding solution's pH ranges from about 8.25 to 9.25 and comprises from 0.25 to 5 weight percent and preferably about 0.75 to 3.0 weight percent of sodium bicarbonate and includes a petroleum recovery surfactant of 0.05 to 1.0 weight percent and between 1 and 20 weight percent of sodium chloride. After flooding, an oil and water mixture is withdrawn from the well and the oil is separated from the oil and water mixture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}