塔里木盆地满东1气藏天然气生成动力学研究  

Kinetics of Natural Gas Generation of Mandong 1 Gas Pool in Tarim Basin

作　　者：李贤庆[1,2] 仰云峰[3] 田辉[1] 冯松宝[4] 王康东[4] 曹鸿亮[4] 王娟[4] 马小敏[4] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640 [2]中国矿业大学煤炭资源与安全开采国家重点实验室 [3]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所,江苏无锡214151 [4]中国矿业大学地球科学与测绘工程学院,北京100083

出　　处：《石油天然气学报》2010年第5期49-55,共7页Journal of Oil and Gas Technology

基　　金：国家油气科技重大专项(2008ZX05007-03);有机地球化学国家重点实验室开放基金项目(OGL-200808);国家自然科学基金项目(40572085);教育部新世纪优秀人才支持项目(NCET-06-0204)

摘　　要：采用黄金管-高压釜限定体系生烃动力学装置,对塔里木盆地哈得原油样品进行了热解生气试验研究,推导了原油热解生成气态烃动力学参数。结果表明,哈得原油具有很高的产气率,以2℃/h升温速率为例,当热解温度达到600.6℃时,总气产率(C1-5)达到599ml/g。该原油生气动力学参数为:活化能分布范围59～70kcal/mol,主要分布在60～65kcal/mol,频率因子5.0×1014s-1。运用Kinetics专用软件的动力学模拟,结合区域地质背景,研究了塔里木盆地满东1气藏生气史,认为满东1气藏天然气具有原油裂解气特征,生气层位在寒武系顶部至奥陶系底部之间,原油大量裂解,为满东1气藏形成提供气源。A pyrolysis experiment of gas generation of Hade crude oil sample from Tarim Basin was carried out with closed-gold tube-high pressure reaction system.The kinetic parameters of gaseous hydrocarbon generation were also obtained.The results indicate that Hade crude oil could yield a large amount of gaseous hydrocarbon.When pyrolysis temperature was 600.6℃in heating rate of 2℃/h,the yield of C1-5could reach 599ml/g.The kinetic parameters of C1-5 generation from Hade crude oil were as follows:activation energy distribution is 59～70kcal/mol,which is distributed between 60～65kcal/mol.Its frequency factor was 5.0×1014s-1.Based on the kinetic modeling of gas generation by using the kinetics(2000)software,in combination with the geological background,it was suggested that natural gas of the Mandong 1Gas Pool in Tarim Basin had the characteristics of oil cracking gas.The result demonstrates that oil-cracking occurs between the top of Cambrian and bottom of Ordovician,oil is cracked with a large amount in early time and generates a huge number of natural gas.The Mandong 1Gas Pool IS believed to be an accumulation of gases resulted from crude oil cracking.

关 键 词：原油热解 气态烃 动力学参数 生气史 满东1气藏 

分 类 号：P618.13[天文地球—矿床学]