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Title: Modeling and laboratory investigations of microbial oil recovery mechanisms in porous media

Abstract

Simulation and experimental results on the transport of microbes and nutrients in one-dimensional cores are presented, and the development of a three-dimensional, three-phase, multiple-component numerical model to describe the microbial transport and oil recovery in porous media is described. The change of rock`s wettability and associated relative permeability values after microbial treatments were accounted for in the model for additional oil recovery. Porosity and permeability reductions due to cell clogging have been considered and the production of gas by microbial metabolism has been incorporated. Governing equations for microbial and nutrient transport are coupled with continuity and flow equations under conditions appropriate for a black oil reservoir. The computer simulator has been used to determine the effects of various transport parameters on microbial transport phenomena. The model can accurately describe the observed transport of microbes, nutrients, and metabolites in coreflooding experiments. Input parameters are determined by matching laboratory experimental results. The model can be used to predict the propagation of microbes and nutrients in a model reservoir and to optimize injection strategies. Optimization of injection strategy results in increased oil recovery due to improvements in sweep efficiency. Field-scale numerical simulation studies using data from relative permeability experiments indicated that microbial treatmentmore » could improve oil recovery over waterflooding alone. This report addresses the work conducted under project BE3 of the FY92 annual plan.« less

Authors:
; ; ;
Publication Date:
Research Org.:
National Inst. for Petroleum and Energy Research, Bartlesville, OK (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10107130
Report Number(s):
NIPER-629
ON: DE93000105
DOE Contract Number:  
FC22-83FE60149
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Dec 1992
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; MICROBIAL EOR; BENCH-SCALE EXPERIMENTS; MATHEMATICAL MODELS; EXPERIMENTAL DATA; PETROLEUM; ENHANCED RECOVERY; DRILL CORES; THREE-DIMENSIONAL CALCULATIONS; COMPUTERIZED SIMULATION; MICROORGANISMS; SWEEP EFFICIENCY; TRANSPORT; POROUS MATERIALS; SANDSTONES; COMPUTERIZED TOMOGRAPHY; POROSITY; 020300; DRILLING AND PRODUCTION

Citation Formats

Chang, M M, Bryant, R S, Stepp, A K, and Bertus, K M. Modeling and laboratory investigations of microbial oil recovery mechanisms in porous media. United States: N. p., 1992. Web. doi:10.2172/10107130.
Chang, M M, Bryant, R S, Stepp, A K, & Bertus, K M. Modeling and laboratory investigations of microbial oil recovery mechanisms in porous media. United States. doi:10.2172/10107130.
Chang, M M, Bryant, R S, Stepp, A K, and Bertus, K M. Tue . "Modeling and laboratory investigations of microbial oil recovery mechanisms in porous media". United States. doi:10.2172/10107130. https://www.osti.gov/servlets/purl/10107130.
@article{osti_10107130,
title = {Modeling and laboratory investigations of microbial oil recovery mechanisms in porous media},
author = {Chang, M M and Bryant, R S and Stepp, A K and Bertus, K M},
abstractNote = {Simulation and experimental results on the transport of microbes and nutrients in one-dimensional cores are presented, and the development of a three-dimensional, three-phase, multiple-component numerical model to describe the microbial transport and oil recovery in porous media is described. The change of rock`s wettability and associated relative permeability values after microbial treatments were accounted for in the model for additional oil recovery. Porosity and permeability reductions due to cell clogging have been considered and the production of gas by microbial metabolism has been incorporated. Governing equations for microbial and nutrient transport are coupled with continuity and flow equations under conditions appropriate for a black oil reservoir. The computer simulator has been used to determine the effects of various transport parameters on microbial transport phenomena. The model can accurately describe the observed transport of microbes, nutrients, and metabolites in coreflooding experiments. Input parameters are determined by matching laboratory experimental results. The model can be used to predict the propagation of microbes and nutrients in a model reservoir and to optimize injection strategies. Optimization of injection strategy results in increased oil recovery due to improvements in sweep efficiency. Field-scale numerical simulation studies using data from relative permeability experiments indicated that microbial treatment could improve oil recovery over waterflooding alone. This report addresses the work conducted under project BE3 of the FY92 annual plan.},
doi = {10.2172/10107130},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {12}
}