塔里木盆地吉拉克地区三叠系凝析气藏成因分析  

Origin Analysis on Triassic Condensate Reservoirs in Jilake Area of Tarim Basin

作　　者：李福来 孟凡超 段忠丰 

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580

出　　处：《石油天然气学报》2013年第10期23-26,5,共4页Journal of Oil and Gas Technology

基　　金：国家自然科学基金项目(41202075);中央高校基本科研业务费专项资金资助项目(13CX02036A;12CX04011A)

摘　　要：凝析气藏是资源量丰富的一类非常规油气资源,对于其成因机制及分布规律的研究一直是石油地质学科的热点领域。吉拉克地区的三叠系产层是塔里木盆地重要的凝析气藏产区,目前尚未对其成因及成藏过程开展有效的研究工作。基于次生凝析气藏的相分馏成因,结合吉拉克地区凝析气藏的相态特征及流体性质进行研究。结果表明,研究区三叠系的凝析气藏并非气侵富集型,与该区泄压分异型的"石炭系模式"不同,应为下伏油气资源分馏后的气相产物与三叠系正常油藏发生混合的结果。The condensate reservoir was a type of unconventional reservoir with rich resources.It has been the hot point of petroleum geology for researching its origin and the distributing rules.The Triassic reservoir of Jilake Area was an important area of condensate gas production in Tarim Basin.However,so far no effective studies have been made on its origin and reservoir formation process.Based on the facies fractionation and genesis of secondary condensate gas reservoirs,it was studied in combination with its facies characteristics and fluid features of condensate gas reservoirs in the area.The result shows that the type of condensate gas reservoir is not gas invaded enriching type in the studied area,it is different from that of pressure relief and differentiated type of'Carboniferous mode',it is the result of product formed by underlying fractionated gas sources mixed with normal gas reservoirs in Triassic System.

关 键 词：轮南低凸起 三叠系 吉拉克地区 凝析气藏 

分 类 号：P618.13[天文地球—矿床学]