石油与天然气地质 ›› 2009, Vol. 30 ›› Issue (3): 300-309,299.doi: 10.11743/ogg20090308

• 西部油气地质 • 上一篇    下一篇

塔河地区三叠系油气充注幕次划分与成藏时期确定

吕海涛1, 陈红汉2,3, 唐大卿3, 马黎3   

  1. 1. 中国石油化工股份有限公司, 西北分公司, 石油勘探开发研究院, 新疆, 乌鲁木齐, 830011;
    2. 中国科学院, 地质与地球物理研究所, 北京, 100029;
    3. 中国地质大学, 资源学院, 石油系, 湖北, 武汉, 430074
  • 收稿日期:2008-12-29 出版日期:2009-06-25 发布日期:2012-01-16
  • 基金项目:

    教育部科学技术重点项目(106113);湖北省自然科学基金计划项目(2007ABC013).

Determination of hydrocarbon charging events and timing of accumulation in the Triassic of Tahe area,the Tarim Basin

Lü Haitao1, Chen Honghan2,3, Tang Daqing3, Ma Li3   

  1. 1. Research Institute of Petroleum Exploration and Development, SINOPEC Northwest Oilfield Company, Urumqi, Xinjiang 830011, China;
    2. Institute of Geology & Geophysics, Chinese Academy of Sciences, Beijing 100029, China;
    3. Department of Petroleum Geology, Faculty of Earth Resources, China University of Geosciences, Wuhan, Hubei 430074, China
  • Received:2008-12-29 Online:2009-06-25 Published:2012-01-16

PDF (PC)

504

被引次数

21

摘要：

受区域构造"跷跷板"运动和断裂输导体系控制,塔河地区三叠系经历了比较复杂的油气成藏过程。通过291块流体包裹体样品的系统分析,运用油包裹体荧光颜色、均一温度统计分布以及埋藏史投影法获得了工区三叠系各充注幕次的充注年龄和成藏期次,并确定了其油气成藏时期。结果表明,工区三叠系上、中、下油组均可划分出3幕油气充注,但北部的于奇地区为早期(40～7.5Ma)3幕不连续充注成藏,中南部为晚期(11～0.9Ma)3幕连续充注成藏。由此认为,塔河地区三叠系发育"沟源"断层的盐边、盐上构造带和岩性上倾尖灭带应是下一步勘探的有利目标。

关键词: 流体包裹体, 成藏模式, 油气成藏期次, 三叠系, 塔河地区

Abstract:

Controlled by regional "seesaw" tectonic movements and the fault carrier system,the Triassic of the Tahe area experienced a very complicated hydrocarbon accumulation process.In this study,we systematically analyzed 291 fluid inclusion samples.The hydrocarbon charging events and timing of accumulation in the Triassic were determined according to the fluorescent colors of oil inclusions and through projecting the homogenization temperature on burial history.The results show that,each of the upper,middle and lower oil layers in the Triassic were charged in three stages.The reservoirs in the northern Yuqi area were charged in the earlier(40-7.5 Ma) three discontinuous stages,while the reservoirs in the central-south area were charged in the later(11-0.9 Ma) three continuous stages.Based on these understandings,we have proposed that the peri-salt and supra-salt structural zones and lithological updip pinchout zones are the favorable targets for further exploration.

Key words: fluid inclusion, accumulation model, hydrocarbon accumulation stage, Triassic, Tahe area

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