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Summary: Paper Number 15736-PA
Title Reaction Kinetics of Fuel Formation for In-Situ Combustion
Authors Abu-Khamsin, Sidqi A., Stanford U.; Brigham, William E., Stanford U.; Ramey
Jr., Henry J., Stanford U.
Journal SPE Reservoir Engineering
Issue November
Pages 1308-1316
Copyright 1988
Preview Summary. Chemical reactions believed to cause fuel formation for in-situ
combustion have been studied and modeled. A thin, packed bed of sand/oil
mixture is heated under nitrogen flow at linearly increasing temperatures,
simulating the approach of a combustion front. Analysis of gases produced from
the reaction cell revealed that pyrolysis of crude oil in porous media goes
through three overlapping stages: distillation, mild cracking (visbreaking), and
severe cracking (coking). Expressions that govern the rates of the two cracking
reactions are derived, and a technique is outlined to obtain initial estimates for
their parameters from the experimental data. The parameters of a proposed
distillation function, as well as refined estimates for the cracking reaction
parameters, are obtained by non-linear regression methods based on an
parameters, are obtained by non-linear regression methods based on an overall
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