›› 2017, Vol. 38 ›› Issue (2): 1-1.doi: 10.7657/XJPG20170209

• 论文 •    

轮南地区三叠系流体包裹体特征与油气成藏期次

孙一芳1,查明1,高长海1,张海祖2,赵海涛2,颜文远1   

  1. (1.中国石油大学 地球科学与技术学院,山东 青岛 266580;2.中国石油 塔里木油田分公司 勘探开发研究院,新疆 库尔勒 841000)
  • 出版日期:2019-01-01 发布日期:1905-07-14

Fluid Inclusion Characteristics and Hydrocarbon Accumulation Periods of Triassic Reservoirs in Lunnan Area of Tarim Basin

SUN Yifang1, ZHA Ming1, GAO Changhai1, ZHANG Haizu2, ZHAO Haitao2, YAN Wenyuan1   

  1. (1.School of Geosciences, China University of Petroleum, Qingdao, Shandong 266580, China; 2.Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China)
  • Online:2019-01-01 Published:1905-07-14

摘要: 塔里木盆地轮南地区三叠系油气成藏期次及时间存在争议,为此,采集了13口钻井51块流体包裹体样品,利用镜下观察和显微测温技术,研究流体包裹体显微特征和均一温度,结合埋藏史—热演化史模拟,确定了轮南地区三叠系油气成藏期次及时间。轮南地区三叠系主要发育盐水包裹体和气液两相烃类包裹体,大多赋存于石英微裂隙中。烃类包裹体在荧光下呈亮黄—黄绿色,表明研究区油气成熟度中等;伴生盐水包裹体均一温度具单峰特征,峰值为110~120℃. 轮南地区三叠系油气藏经历1期油气充注,主要成藏时间为中新世。

Abstract: There are some disputes about hydrocarbon accumulation periods and times of Triassic reservoirs in Lunnan Area of Tarim Basin, therefore, 51 samples of fluid inclusions are collected from 13 wells in this area. The paper studies the microscopic features and homogenization temperatures of the fluid inclusions based on microscopic observation and microthermometry technology, and determines the hydrocarbon accumulation periods and times combining with the burial history-thermal evolution history matching. Saline inclusions and gas-liquid two-phase hydrocarbon inclusions are mainly developed in the Triassic reservoirs of Lunnan area, most of which occur in the microfissures of quartz. The hydrocarbon inclusions are bright yellow to yellowish green, which indicates a medium maturity of oil and gas in the study area. Homogenization temperatures of associated saline inclusions show a unimodal distribution characteristic with the peak values mainly ranging from 110℃ to 120℃. One period of hydrocarbon charging occurred in the Triassic reservoirs in Miocene in the area

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