页岩油注空气氧化放热及影响因素研究  

INVESTIGATION INTO THE HEAT RELEASE CAUSED BY OXIDATION AND INFLUENCING FACTORS DURING SHALE OIL AIR INJECTION

作　　者：宁朦 赵帅[2] 张芸 刘佳幸 胡晓蝶 许亮 Ning Meng;Zhao Shuai;Zhang Yun;Liu Jiaxing;Hu Xiaodie;Xu Liang(Research Institute of Experimental and Detection,Petrochina Xinjiang Oilfield Company,Karamay 834000,Xinjiang,China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,Sichuan,China)

机构地区：[1]中国石油新疆油田实验检测研究院,新疆克拉玛依834000 [2]西南石油大学油气藏地质与开发工程国家重点实验室,四川成都610500

出　　处：《精细石油化工》2023年第1期45-48,共4页Speciality Petrochemicals

基　　金：国家自然科学基金青年基金(52204049);中央引导地方科技发展专项(2021ZYD0056)。

摘　　要：评价了页岩岩屑和含水饱和度对吉木萨尔上甜点区页岩油氧化放热的影响。结果表明,该区块页岩油展现出2个明显的放热区间:低温氧化(30~390℃)和高温氧化(390~510℃)阶段;当温度高于250℃,页岩油开始出现明显的氧化放热。加入岩屑后,高温氧化阶段峰值温度降低34℃,且峰值热流量增加2.56 mW/mg。水使得页岩油高温氧化放热明显下降;含水80%时,高温氧化阶段热流量峰值仅为2.64 mW/mg。This study systematically evaluates the effects of shale detritus and water saturation on the oxidation heat release of a shale oil collected from Shangtiandian reservoir in Jimsar.The results show that the shale oil exhibits two distinct exothermic stages:low-temperature oxidation(LTO)and high-temperature oxidation(HTO)stage.When the temperature is higher than 250℃,the shale oil begins to exhibit obvious exothermic phenomenon.After adding the detritus,the initial temperature of the HTO stage is decreased by 34℃,and the peak heat flow is increased by 2.56 mW/mg.The heat release in HTO stage is significantly reduced due to the presence of water,and at 80%water content,the peak heat flow at the HTO stage is only 2.64 mW/mg.

关 键 词：页岩油 氧化 放热 岩屑 含水饱和度 

分 类 号：TE122.1[石油与天然气工程—油气勘探]