Research on oxidation kinetics of tight oil from Wolfcamp field

Huang, Siyuan; Jia, Hu; Sheng, James J.

doi:10.1080/10916466.2016.1174714

Cited by 27 publications

(22 citation statements)

References 10 publications

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“…To study the crude oil oxidation characteristics, the air is usually selected as the reactive gas, where a constant heating rate is applied during the tests. In most of the crude oil's air purging tests, two sudden mass losses are usually observed in the TGA results [14][15][16]. It was stated that the two mass loss behaviors imply the LTO and HTO, respectively.…”

Section: Experimental Methodsmentioning

confidence: 99%

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Screening of Spontaneous Ignition Feasibility During Air Injection EOR Process Based on Thermal Experiments

et al. 2019

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The feasibility of spontaneous ignition is extremely important to the success of AIP (air injection process) projects. However, no laboratory experiments were reported on the detection of crude oil spontaneous ignition during AIP. The initial intention of the thermal experiments is to screen candidate oil reservoirs for the application of AIP in a faster and less expensive way than combustion tube tests. However, instead of performing a feasibility study, most of the research only employed thermal experiments as a tool to obtain kinetic data and to characterize the thermal-oxidative behavior for different crude oil samples. The question of how to use the thermal experiments to determine the feasibility of spontaneous ignition has not been answered yet. This study proposes a practical method to investigate the spontaneous ignition feasibility during AIP, which directly relates the oil reactivity and reservoir properties. An example of the application of this method was presented in this paper, where a mixture of a light oil and sand was tested by the TGA and DSC to obtain the kinetic data and net heat. The obtained parameters were then used to evaluate the feasibility of spontaneous ignition. The results showed that the tested oil and sand mixture cannot lead to spontaneous ignition due to crude oil’s insufficient reactivity. Furthermore, the typical crude oil kinetic data and reservoir conditions were used to investigate the screening criteria for spontaneous ignition. The results indicated that the crude oil’s activation energy and frequency factor need to be less than 60 kJ/mole and higher than 2 s−1, respectively, in order to satisfy the need of spontaneous ignition.

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Section: Experimental Methodsmentioning

confidence: 99%

“…The details about the transformation of Arrhenius equation and how to perform linear regression for TGA results are described in detail in Ref. [14], and the final transformed equation is presented as Equation (4).…”

Section: Kinetic Theorymentioning

confidence: 99%

Screening of Spontaneous Ignition Feasibility During Air Injection EOR Process Based on Thermal Experiments

et al. 2019

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“…However, most of these studies only qualitatively evaluated the possible potential of an oil and rock system for conducting an AIP. TGA and DSC have been employed by many researchers to identify the oxidation reaction scheme and examine the thermal-oxidative behavior of different crude oils and oil-rock mixture samples [11][12][13][14][15][16][17][18][19]. Although, these studies do not provide quantitative results, the information could still be interpreted in order to help predict the candidate oil samples for further combustion tube tests.…”

Section: Attempts To Use Thermal Experiments In the Feasibility Studymentioning

confidence: 99%

“…If the activation energy of a reaction scheme is lower, the reaction can be triggered more easily, or the reaction can be more readily sustained. In this paper, the kinetic data as activation energy in LTO and HTO are summarized separately, from 22 different crude oils, and with API gravity ranges from 11 to 44.3 [9,14,17,20,28,30,33,[35][36][37][38][39][40][41][42][43]. No relation between the API gravity and the activation energies were found based upon the data, which implies that the API gravity of the crude oil cannot be used as an all-descriptive measure of the thermal behavior of crude oil [5].…”

Section: Kinetic Study Of Crude Oil By Using Thermal Experimentsmentioning

confidence: 99%

“…No relation between the API gravity and the activation energies were found based upon the data, which implies that the API gravity of the crude oil cannot be used as an all-descriptive measure of the thermal behavior of crude oil [5]. The frequency factor data from 11 different crude oils were also summarized as shown in Fig 4 [10,17,28,30,34,[39][40][41]. It is observed that the API gravity of the crude oil does not have a relation to the frequency factor values.…”

Section: Kinetic Study Of Crude Oil By Using Thermal Experimentsmentioning

confidence: 99%

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Discussion of thermal experiments’ capability to screen the feasibility of air injection

Huang

Sheng

2017

Fuel

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Thermal experiments such as thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), accelerating rate calorimetry (ARC), and small batch reactor (SBR) are typically used to screen the feasibility of air injection in a reservoir. In this paper, the capability of these tools were studied. The screening criteria for air injection process (AIP) based on the thermal experiments were summarized. A practical workflow to use the thermal experiments to build a base simulation model for AIP it was proposed. In an AIP simulation model, there are about 12 variables to govern the process. Generally, researchers consider kinetic data as adjustable variables to match experimental or field data. How to properly adjust the kinetic data and understand the effect of the kinetic data on the production performance of a reservoir are not well established. In this paper, the reaction temperature ranges and the exothermic peak temperatures for the low temperature oxidation (LTO) stage and high temperature oxidation (HTO) stage were summarized from the experiments using 19 crude oils. The measured kinetic data of 22 different crude oils, and the kinetic data of 25 sets of crude oils with the presence of additives were also summarized. From these data, the ranges of activation energy and frequency factor were defined as the reference for future studies, if such data are readily available. A simulation study has been conducted to study the significance of the kinetic data on production performance. It is observed that the variation of the activation energy significantly influence the recovery performance while the variation of the frequency factor does not.

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TG-DSC and TG-FTIR analysis of heavy fuel oil and vacuum residual oil pyrolysis and combustion: characterization, kinetics, and evolved gas analysis

Alabbad

Gautam

Romero

et al. 2023

J Therm Anal Calorim

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Research on oxidation kinetics of tight oil from Wolfcamp field

Cited by 27 publications

References 10 publications

Screening of Spontaneous Ignition Feasibility During Air Injection EOR Process Based on Thermal Experiments

Screening of Spontaneous Ignition Feasibility During Air Injection EOR Process Based on Thermal Experiments

Discussion of thermal experiments’ capability to screen the feasibility of air injection

TG-DSC and TG-FTIR analysis of heavy fuel oil and vacuum residual oil pyrolysis and combustion: characterization, kinetics, and evolved gas analysis

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