柴达木盆地西部古-新近系储层流体包裹体特征及油藏成藏时间研究  

Characteristics of Fluid Inclusion and Reservoir-forming Time of the Paleogene and Neogene Reservoirs in the Western Qaidam Basin

作　　者：李贤庆[1,2] 董鹏[3] 仰云峰[3] 王康东[3] 孔龙玺[3] 冯松宝[3] 彭德华[4] 陈琰[4] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,北京100083 [2]中国石油大学油气资源与探测国家重点实验室,北京102249 [3]中国矿业大学地球科学与测绘工程学院,北京100083 [4]青海油田分公司勘探开发研究院,甘肃敦煌736202

出　　处：《石油天然气学报》2009年第6期44-48,共5页Journal of Oil and Gas Technology

基　　金：国家大型油气田及煤层气开发科技重大专项项目(2008ZX05007-03);教育部新世纪优秀人才计划支持项目(NCET-06-0204);油气资源与探测国家重点实验室开放基金项目(2009004);中国石油天然气股份有限公司科技专项项目(2008B-0401);中国石油青海油田分公司科研项目(QHKT/JL-03-013)

摘　　要：依据流体包裹体透射光和荧光镜下观察、包裹体均一化温度测定及含油流体包裹体丰度(GOI)分析,对柴达木盆地西部地区跃进一号、尖顶山构造古-新近系储层样品中流体包裹体特征及油藏成藏时间进行了研究。该区储层样品中流体包裹体分布不均一,个体较小,大多数包裹体小于20μm。含油流体包裹体丰度(GOI)值较低,大多数样品GOI值分布在1%～10.0%之间,约35%样品的GOI值超过5%。根据实测的包裹体均一化温度结果,结合埋藏-热演化史,综合分析了跃进一号、尖顶山油藏成藏时间。研究认为,跃进一号、尖顶山油藏均具有晚期成藏特征,前者主要成藏时间为N12-N23,后者主要成藏时间为N22-N23。According to the observations under transmitted and fluorescent light,homogenization temperatures of fluid inclusions and abundance of oil inclusions,the characteristics of fluid inclusions and reservoir-forming times of Yuejing 1 and Jiandingshan oil reservoirs in the Western Qaidam Basin were discussed.In these studied samples,fluid inclusions were non-uniformly distributed and small (usually <20μm).The GOI values were relatively lower,of which the most of samples were ranged from 1% to 10.0% and about 35% samples exceeded 5%.Based on the results of homogenization temperatures of fluid inclusions and in combination with the burial-thermal evolution history,the reservoir-forming times of Yuejin 1 and Jiandingshan reservoirs were analyzed.It shows that both reservoirs have the characteristics of late hydrocarbon accumulation.The main reservoir-forming time of Yuejing 1 reservoir is at N12-N32.The main reservoir-forming time of the Jiandingshan reservoir is at N22-N32.

关 键 词：流体包裹体 含油包裹体丰度(GOI) 均一化温度 成藏时间 柴达木盆地 

分 类 号：P618.13[天文地球—矿床学]