新疆准噶尔盆地南缘吉木萨尔—奇台一带油气微渗漏地表酸解烃检测  

Detection of acidolysis hydrocarbon on the surface of oilgas micro-leakage in the southern margin of Junggar basin,Xinjiang

作　　者：刘明 李斌 赵文芳 韩昕瑶 Liu Ming;Li Bin;ZhaoWen-fang;Han Xin-yao(Shaanxi Geological Science and Technology Center,Xi'an 710054,Shaanxi,China;Urumqi Geological Brigade,Xinjiang Uygur Autonomous Region Geological Bureau,Urumqi 830000,Xinjiang,China;School of Mining Engineering and Geology,Xinjiang Institute of Engineering,Urumqi 830023,Xinjiang,China)

机构地区：[1]陕西省地质科技中心,陕西西安710054 [2]新疆维吾尔自治区地质局乌鲁木齐地质大队,新疆乌鲁木齐830000 [3]新疆工程学院矿业工程与地质学院,新疆乌鲁木齐830023

出　　处：《西部探矿工程》2025年第3期77-80,84,共5页West-China Exploration Engineering

摘　　要：研究人员在准噶尔盆地南缘吉木萨尔—奇台县一带采集了地表土壤样品,进行酸解烃及X衍射测试分析,发现酸解烃甲烷与碳酸盐方解石相关性较高,通过分析二者的关系,认为方解石是油气微渗漏的重要指示矿物。进一步确定酸解烃甲烷含量的异常门限值,采用烃类特征比值法分析认为研究区酸解烃样品烃类异常多与石油伴生气为主。地表样品中干燥系数越低,表明有机质厌氧细菌对地表样品的影响越小,测得的烃类气体来自深部油气微渗漏的可能性越大。研究区酸解烃甲烷与干燥系数呈负相关,认为干燥系数结合酸解烃异常对研究区油气微渗漏具有较好的指示意义。The surface soil samples were collected from Jimusaer-Qitai area in the southern margin of Junggar basin for testing and analysis of acidolysis hydrocarbon and carbonate calcite.It was found that acidolysis hydrocarbon methane had a high correlation with carbonate calcite.By analyzing the relationship between them,calcite was considered to be an important indicator mineral for oil and gas micro leakage.The abnormal threshold value of acidolysis hydrocarbon methane content was further determined,and the hydrocarbon characteristic ratio method was used to analyze the results.The lower the drying coefficient of surface samples,the less the influence of organic anaerobic bacteria on surface samples,and the greater the possibility of hydrocarbon gas from oil and gas micro leakage.There is a negative correlation between acidolysis hydrocarbon methane and drying coefficient in the study area,and it is considered that the drying coefficient combined with the acidolysis hydrocarbon anomaly has a good indication of oil and gas micro leakage in the study area.

关 键 词：准噶尔盆地南缘 油气微渗漏 酸解烃 干燥系数 

分 类 号：P618.13[天文地球—矿床学]