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Title: Biocatalyzed Chemical Gels for Permeability Modification in Injection and Production Wells

Abstract

Low oil production and excessive water production cause many domestic oil wells to reach their economic limit when they still contain one-half to two-thirds of the original oil. Gelled polymer systems traditionally used to treat these wells are highly toxic and technically difficult to use. Non-toxic gels are needed to treat these marginal wells so that domestic producers can economically recover additional oil. The research objective was to use biocatalysts to gel non-petroleum based chemical gelants. This eliminates toxic compounds from the gel systems and simplifies the gelation mechanism. The result is an environmentally friendly gel system that is applicable to more domestic oil wells. The gelant was formulated and the biocatalyst was optimized to drive the gelation reaction. Performance of the biocatalyzed gel for permeability modification was tested successfully in coreflood experiments. This technology can be used in waterfloods to improve injection profiles, increase sweep efficiency, and increase oil production from previously bypassed zones. It can be applied in production wells to decrease coning, shut off excess water production, and increase oil production.

Authors:
Publication Date:
Research Org.:
GeoMicrobial Technologies (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
781101
Report Number(s):
1
TRN: AH200131%%128
DOE Contract Number:  
FG03-99ER82795
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 31 May 2000
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; CHANNELING; ECONOMICS; GELATION; MODIFICATIONS; OIL WELLS; PERFORMANCE; PERMEABILITY; POLYMERS; PRODUCTION; WATER; PERMEABILITY MODIFICATION

Citation Formats

Scott A. Bailey. Biocatalyzed Chemical Gels for Permeability Modification in Injection and Production Wells. United States: N. p., 2000. Web.
Scott A. Bailey. Biocatalyzed Chemical Gels for Permeability Modification in Injection and Production Wells. United States.
Scott A. Bailey. Wed . "Biocatalyzed Chemical Gels for Permeability Modification in Injection and Production Wells". United States.
@article{osti_781101,
title = {Biocatalyzed Chemical Gels for Permeability Modification in Injection and Production Wells},
author = {Scott A. Bailey},
abstractNote = {Low oil production and excessive water production cause many domestic oil wells to reach their economic limit when they still contain one-half to two-thirds of the original oil. Gelled polymer systems traditionally used to treat these wells are highly toxic and technically difficult to use. Non-toxic gels are needed to treat these marginal wells so that domestic producers can economically recover additional oil. The research objective was to use biocatalysts to gel non-petroleum based chemical gelants. This eliminates toxic compounds from the gel systems and simplifies the gelation mechanism. The result is an environmentally friendly gel system that is applicable to more domestic oil wells. The gelant was formulated and the biocatalyst was optimized to drive the gelation reaction. Performance of the biocatalyzed gel for permeability modification was tested successfully in coreflood experiments. This technology can be used in waterfloods to improve injection profiles, increase sweep efficiency, and increase oil production from previously bypassed zones. It can be applied in production wells to decrease coning, shut off excess water production, and increase oil production.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Technical Report:
Other availability
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