Design Parameters and Technique Evaluation of Combustion Processes from Tube Testing

Yatte, Fabian Camilo; Ramirez, Hernando Bottia; Navarro, Samuel Fernando Muñoz; Oliveros, Luis Roberto

doi:10.2118/165458-ms

Cited by 3 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thirty minutes after ignition, the temperature reaches a pseudo-steady state at an average value of 534°C. This value is of the order of those reported in ISC experiments [27,29,45,46].…”

Section: Combustion Tube -Ignitionsupporting

confidence: 50%

“…However, the traditional reservoir physical modeling tools were developed to correctly predict oil extraction, and not for kinetic analysis. Their application to the small-scale experiments used in the laboratory to characterize ISC is difficult, as the complexity of reservoir simulation can obscure the kinetic analysis sought in the experiments [29]. Furthermore, in some cases it is desirable to use detailed mass transfer modelling, such as gas-phase molecular diffusion.…”

Section: Model Formulationmentioning

confidence: 99%

See 1 more Smart Citation

Simulation tool for the analysis of in-situ combustion experiments that considers complex kinetic schemes and detailed mass transfer- theoretical analysis of the gas phase CO oxidation reaction

Álvarez

López

Molina

2022

CT&F Cienc. Tecnol. Futuro

View full text Add to dashboard Cite

A simulation tool was designed for analyzing various experimental setups that include the ability to model detailed chemical reaction schemes for in-situ combustion (ISC) analysis.,. The simulation tool was illustrated with a theoretical example to the extent of CO oxidation in a gaseous phase takes place during ISC. The models in the simulation tool are based on fundamental conservation laws, physical correlations for porous media properties, and property databases available in literature. Emphasis is made on the analysis of chemical reactions in the gas phase, a characteristic that may be useful when temperatures are above 700°C and oxygen, unburned hydrocarbons, and CO coexist. The three modules of the simulation tool: (i) Kinetic cell, (ii) One-dimensional reactor, and (iii) Combustion tube, can be used to represent in detail the processes taking place in the typical laboratory-scale equipment used to characterize ISC. Tools for the analysis of transport phenomena and multiphase reactions, present in all three models, can support the process of finding chemical kinetic parameters for an easier calculation of device-independent kinetic constants. Four applications have the simulator scope: (i) Analysis of reactions in the gas phase, (ii) Axial gradients in a kinetic cell, (iii) Pressure build-up in a combustion tube, and (iv) Ignition in a combustion tube. These examples highlight the importance that homogeneous reactions may have in these systems and the existence, under certain conditions, of concentration gradients that are normally neglected, and can affect the interpretation of ISC experiments.

show abstract

“…Thirty minutes after ignition, the temperature reaches a pseudo-steady state at an average value of 534°C. This value is of the order of those reported in ISC experiments [27,29,45,46].…”

Section: Combustion Tube -Ignitionsupporting

confidence: 50%

Section: Model Formulationmentioning

confidence: 99%

Simulation tool for the analysis of in-situ combustion experiments that considers complex kinetic schemes and detailed mass transfer- theoretical analysis of the gas phase CO oxidation reaction

Álvarez

López

Molina

2022

CT&F Cienc. Tecnol. Futuro

View full text Add to dashboard Cite

show abstract

“…In addition, the carbon chains also undergo a polycondensation process at the time of decarbonylation. It leads to the content increase of resins and asphaltenes in light oil [23,24] . Secondly, the difference in active oil components makes the different oils have the different LTO activity characteristics.…”

Section: Lto Reaction Activity Of Heavy Oilsmentioning

confidence: 99%

Low-Temperature Oxidation Characteristics and Its Effect on the Critical Coking Temperature of Heavy Oils

et al. 2015

View full text Add to dashboard Cite

Air assisted steam stimulation (huff and puff) is an innovative process for enhanced heavy oil recovery. In this paper, the low temperature oxidation (LTO) and coking experiments were conducted to reveal the LTO characteristics of heavy oils and its effect on the oil critical coking temperature. The O2 consuming ability and oxidation activity of different oils, in a temperature range of 80-170 o C, were analyzed, including typical light and heavy oil samples. The experimental results show that heavy oils have a higher oxidation activity at low temperature than that of light oils. Heavy oils can effectively consume O2 in the injected air and produce a certain amount of CO2 under reservoir conditions. In terms of the difference in LTO characteristics of different oils, a more general LTO reaction kinetics model of crude oils in reservoir was established. A parameter, Rdec (ratio of hydrocarbon oxides participating in decarbonylation to total hydrocarbon oxides produced from oxidation), is introduced to indicate the O2-to-CO2 conversion features of different oils during LTO process. The Rdec, Ea and ko of heavy oils are usually lower than those of light oils, which can well reflect the LTO characteristics of heavy oils and demonstrate that heavy oils are more easily oxidized at low temperature. However, due to more heavy oil components generated during LTO process, the critical coking temperature of heavy oils exposed to air environment will decrease (by 120 o C from 400 o C to 280 o C for super heavy oil). It should be noted that the effect of LTO process on critical coking temperature is different for different heavy oils, and the induced coking risks are also different in different heavy oil reservoirs, which need further studies in lab and field.

show abstract

Determination of the propagation state of the combustion zone during in-situ combustion by dimensionless numbers

Liu

Tang

Zheng

et al. 2021

Fuel

View full text Add to dashboard Cite

Design Parameters and Technique Evaluation of Combustion Processes from Tube Testing

Cited by 3 publications

References 7 publications

Simulation tool for the analysis of in-situ combustion experiments that considers complex kinetic schemes and detailed mass transfer- theoretical analysis of the gas phase CO oxidation reaction

Simulation tool for the analysis of in-situ combustion experiments that considers complex kinetic schemes and detailed mass transfer- theoretical analysis of the gas phase CO oxidation reaction

Low-Temperature Oxidation Characteristics and Its Effect on the Critical Coking Temperature of Heavy Oils

Determination of the propagation state of the combustion zone during in-situ combustion by dimensionless numbers

Contact Info

Product

Resources

About