Some Observations on Field-Scale Simulation of the In-Situ Combustion Process

1983 ◽  
Author(s):  
K.H. Coats
Keyword(s):  
Combustion Process ◽  
Field Scale ◽  
In Situ Combustion

scholarly journals In-situ Combustion Simulation from Laboratory to Field Scale

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Zhouyuan Zhu ◽  
Canhua Liu ◽  
Yajing Chen ◽  
Yuning Gong ◽  
Yang Song ◽  
...  
Keyword(s):  
Combustion Process ◽  
Reaction Model ◽  
Field Scale ◽  
Arrhenius Kinetics ◽  
Kinetics Parameters ◽  
In Situ Combustion ◽  
Temperature Oxidation ◽  
Reservoir Volume ◽  
Combustion Simulation

In-situ combustion simulation from laboratory to field scale has always been challenging, due to difficulties in deciding the reaction model and Arrhenius kinetics parameters, together with erroneous results observed in simulations when using large-sized grid blocks. We present a workflow of successful simulation of heavy oil in-situ combustion process from laboratory to field scale. We choose the ongoing PetroChina Liaohe D block in-situ combustion project as a case of study. First, we conduct kinetic cell (ramped temperature oxidation) experiments, establish a suitable kinetic reaction model, and perform corresponding history match to obtain Arrhenius kinetics parameters. Second, combustion tube experiments are conducted and history matched to further determine other simulation parameters and to determine the fuel amount per unit reservoir volume. Third, we upscale the Arrhenius kinetics to the upscaled reaction model for field-scale simulations. The upscaled reaction model shows consistent results with different grid sizes. Finally, field-scale simulation forecast is conducted for the D block in-situ combustion process using computationally affordable grid sizes. In conclusion, this work demonstrates the practical workflow for predictive simulation of in-situ combustion from laboratory to field scale for a major project in China.

Interaction between aromatics and n-alkane for in-situ combustion process

2020 ◽  
Vol 187 ◽  
pp. 106770 ◽  
Author(s):  
Chengdong Yuan ◽  
Mikhail A. Varfolomeev ◽  
Artashes A. Khachatrian
Keyword(s):  
Combustion Process ◽  
In Situ Combustion

Kinetics of Wet In-Situ Combustion: A Review of Kinetic Models

2014 ◽  
Author(s):  
E. A. Cavanzo ◽  
S. F. Muñoz ◽  
A.. Ordoñez ◽  
H.. Bottia
Keyword(s):  
Kinetic Model ◽  
Crude Oil ◽  
Kinetic Models ◽  
Combustion Front ◽  
Chemical Interaction ◽  
Combustion Process ◽  
Oxidation Reactions ◽  
In Situ Combustion ◽  
Temperature Oxidation

Abstract In Situ Combustion is an enhanced oil recovery method which consists on injecting air to the reservoir, generating a series of oxidation reactions at different temperature ranges by chemical interaction between oil and oxygen, the high temperature oxidation reactions are highly exothermic; the oxygen reacts with a coke like material formed by thermal cracking, they are responsible of generating the heat necessary to sustain and propagate the combustion front, sweeping the heavy oil and upgrading it due to the high temperatures. Wet in situ combustion is variant of the process, in which water is injected simultaneously or alternated with air, taking advantage of its high heat capacity, so the steam can transport heat more efficiently forward the combustion front due to the latent heat of vaporization. A representative model of the in situ combustion process is constituted by a static model, a dynamic model and a kinetic model. The kinetic model represents the oxidative behavior and the compositional changes of the crude oil; it is integrated by the most representative reactions of the process and the corresponding kinetic parameters of each reaction. Frequently, the kinetic model for a dry combustion process has Low Temperature Oxidation reactions (LTO), thermal cracking reactions and the combustion reaction. For the case of wet combustion, additional aquathermolysis reactions take place. This article presents a full review of the kinetic models of the wet in situ combustion process taking into account aquathermolysis reactions. These are hydrogen addition reactions due to the chemical interaction between crude oil and steam. The mechanism begins with desulphurization reactions and subsequent decarboxylation reactions, which are responsible of carbon monoxide production, which reacts with steam producing carbon dioxide and hydrogen; this is the water and gas shift reaction. Finally, during hydrocracking and hydrodesulphurization reactions, hydrogen sulfide is generated and the crude oil is upgraded. An additional upgrading mechanism during the wet in situ combustion process can be explained by the aquathermolysis theory, also hydrogen sulphide and hydrogen production can be estimated by a suitable kinetic model that takes into account the most representative reactions involved during the combustion process.

scholarly journals An in situ combustion process for recovering heavy oil using scaled physical model

2019 ◽  
Vol 9 (4) ◽  
pp. 2681-2688 ◽  
Author(s):  
Xian Zhang ◽  
Qingwang Liu ◽  
Zhenzhong Fan ◽  
Qicheng Liu
Keyword(s):  
Physical Model ◽  
Heavy Oil ◽  
Combustion Process ◽  
In Situ Combustion

Improving heavy oil oxidation performance by oil-dispersed CoFe2O4 nanoparticles in In-situ combustion process for enhanced oil recovery

Fuel ◽  
2021 ◽  
Vol 285 ◽  
pp. 119216
Author(s):  
Seyedsaeed Mehrabi-Kalajahi ◽  
Mikhail A. Varfolomeev ◽  
Chengdong Yuan ◽  
Almaz L. Zinnatullin ◽  
Nikolay O. Rodionov ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Combustion Process ◽  
Oil Oxidation ◽  
Cofe2o4 Nanoparticles ◽  
In Situ Combustion ◽  
Oxidation Performance
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