石油与天然气地质 ›› 1999, Vol. 20 ›› Issue (3): 216-219,223.doi: 10.11743/ogg19990308

• 油气空间 • 上一篇    下一篇

塔里木盆地北部石炭系盐体塑性形变与油气圈闭

周江羽1, 林忠民2, 周凌方3, 罗传容3, 王燮培4, 肖朝晖3   

  1. 1. 中国科学院广州地球化学研究所 广东广州 510640;
    2. 中国新星石油公司西北石油局规划研究院 新疆乌鲁木齐 830011;
    3. 中国新星石油公司勘探研究院 湖北荆州 434100;
    4. 中国地质大学资源学院 湖北武汉 430074
  • 收稿日期:1999-03-30 出版日期:1999-09-25 发布日期:2012-01-16

PLASTIC DEFORMATION AND OIL GAS TRAPS OF CARBONIFEROUS SALT BODY IN NORTHERN TARIM BASIN

Zhou Jiangyu1, Lin Zhongmin2, Zhou Linfang3, Luo Chuanrong3, Wang Xiepei4, Xiao Zhaohui3   

  1. 1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou;
    2. Northwest Bureau of Petroleum Geology, CNSPC, Urumqi;
    3. Research Institute of Petroleum Exploration, CNSPC, Jingzhou, Hubei;
    4. Institute cf Earth Resources, China University cf Geosciences, Wuhan
  • Received:1999-03-30 Online:1999-09-25 Published:2012-01-16

PDF (PC)

842

被引次数

37

摘要：

构造 沉积背景分析表明,塔里木盆地北部石炭系含盐层系主要形成于干旱炎热气候条件,受海平面变化控制的滨岸潮间蒸发泻湖环境,厚度为80～221 m.受区域性构造运动的影响,盐体在地史时期曾经历了三次较为明显的塑性流动:第一次发生在早二叠世末期,表现为盐体向南流动了2～2.8 km;第二次发生在晚三叠世-早侏罗世早期,盐体向南流动距离为1～2.8 km;第三次发生在晚第三纪末期,盐体向北回流,距离为0.5～1.2 km.因盐体塑性流动形成的构造圈闭类型主要有盐脊背斜、盐丘背斜、盐边向斜等。勘探实践证明,盐脊背斜是主要的含油气构造,盐丘背斜、盐边向斜也应给予足够重视。

关键词: 盐体, 塑性流动, 圈闭, 石炭系, 塔里木

Abstract:

On the analysis of tectonic depositional setting,the Carboniferous salt bearing set in North Tarim Basin mainly formed in the hot and dry evaporating lagoon environment of beach intertidal zone controlled by sea level changes with the thickness of 80～221 m.Under the influence of regional tectogenesis,the salt body underwent three times of plastic fluxion in geological history.The first time was in the late stage of Early Permian,the salt flowed 2～2.8 km southwards;the second time was in Late Triassic Early Jurassic,the salt flowed 1～2.8 km southwards again;the third time was in the end of Tertiary,the salt turned to flow northwards for 0.5～1.2 km.The salt flow resulted in several kinds of structural traps mainly including salt ridge anticline,salt dome and salt edge syncline.It has been proved by facts that the salt ridges are major oil and gas bearing structures while the rest two kinds should also be taken into considerable account.

Key words: salt body, plastic fluxion, trap, Carboniferous, Tarim

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