Properties,combustion behavior,and kinetic triplets of coke produced by low-temperature oxidation and pyrolysis:Implications for heavy oil in-situ combustion

作     者：Shuai Zhao Wan-Fen Pu Lei Su Ce Shang Yang Song Wei Li Hui-Zhuo He Yi-Gang Liu Zhe-Zhi Liu Shuai Zhao;Wan-Fen Pu;Lei Su;Ce Shang;Yang Song;Wei Li;Hui-Zhuo He;Yi-Gang Liu;Zhe-Zhi Liu

作者机构：State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationSouthwest Petroleum UniversityChengduSichuan610500China Post-Doctorate R&D BaseSouthwest Petroleum UniversityChengduSichuan610500China E&D Research Institute of Liaohe Oilfield CNPCPanjinLiaoning124000China School of Oil and Gas EngineeringChongqing University of Science and TechnologyChongqing401331China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2021年第18卷第5期

页      面：1483-1491页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 082002[工学-油气田开发工程] 

基　　金：supported by Chinese Postdoctoral Science Foundation (2021M692696) the National Science and Technology Project (2016ZX05058-003-017) Sichuan Science and Technology Program (2021YFH0081) 

主　　题：Oxidized coke Pyrolyzed coke Heavy oil In-situ combustion Kinetic triplets 

摘      要：This work aimed at investigating the crucial factor in building and maintaining the combustion front during in-situ combustion(ISC),oxidized coke and pyrolyzed *** surface morphologies,elemental contents,and non-isothermal mass losses of the oxidized and pyrolyzed cokes were thoroughly *** results indicated that the oxidized coke could be combusted at a lower temperature compared to the pyrolyzed coke due primarily to their differences in the molecular polarity and *** triplets of coke combustion were determined using iso-conversional models and one advanced integral master plots *** activation energy values of the oxidized and pyrolyzed cokes varied in the range of 130-153 k J/mol and 95-120 kJ/mol,*** most appropriate reaction model of combustion of the oxidized and pyrolyzed cokes followed three-dimensional diffusion model(D_(3)) and random nucleation and subsequent growth model(F_(1)),*** observations assisted in building the numerical model of these two types of cokes to simulate the ISC process.