石油学报 ›› 2013, Vol. 34 ›› Issue (2): 239-246.DOI: 10.7623/syxb201302005

• 地质勘探 • 上一篇    下一篇

塔中隆起北坡顺托果勒区块志留系储层油气充注历史——以顺9井流体包裹体分析为例

熊万林 1  陈红汉 1  云 露 2  李慧莉 2  丰 勇 3  吴 悠 1  苏 奥 1   

  1. 1.中国地质大学构造与油气资源教育部重点实验室 湖北武汉 430074; 2.中国石化西北油田公司勘探开发研究院 新疆乌鲁木齐830011; 3.长江大学地球科学学院 湖北荆州 434023
  • 收稿日期:2012-09-27 修回日期:2012-11-30 出版日期:2013-03-25 发布日期:2013-01-31
  • 通讯作者: 熊万林
  • 作者简介:熊万林,男,1987年9月生,2010年获中国地质大学(武汉)学士学位,现为中国地质大学(武汉)硕士研究生,主要研究方向为含烃流体地质。
  • 基金资助:

    国家重点基础研究发展计划(973)项目(2012CB214804)和国家重大科技专项(2008ZX05008-003-30)资助。

Hydrocarbon charging history for Silurian reservoirs of Shuntuoguole block in the north slope of Tazhong uplift, Tarim Basin:constraints from fluid inclusion of Well Shun 9

XIONG Wanlin 1  CHEN Honghan 1  YUN Lu 2  LI Huili 2  FENG Yong 3  WU You 1  SU Ao 1   

  • Received:2012-09-27 Revised:2012-11-30 Online:2013-03-25 Published:2013-01-31

摘要:

受多期构造运动影响,塔里木盆地志留系储层油气成藏具有独特性。运用流体包裹体系统分析技术和方法,特别是单个油包裹体显微荧光分析技术,对顺托果勒低凸起顺9井柯坪塔格组油气成藏期次进行了划分,并确定其油气成藏时期。结果表明,位于斜坡带的顺托果勒低凸起顺9井区柯坪塔格组第1期成藏时间为417.5~409.5Ma;第2期成藏发生在335.0~231.5Ma,属于海西晚期,是该井区最主要的成藏期,油源可能来自于寒武系-下奥陶统烃源灶和中上奥陶统烃源灶;第3期发生在20.1~19.7Ma,属于喜马拉雅中晚期,油源可能来自于中上奥陶统烃源灶;天然气成藏时间为23.5~15.3Ma,气源可能来自于寒武系-下奥陶统烃源灶。

关键词: 塔中隆起北坡, 志留系, 顺托果勒低凸, 油气成藏期次, 流体包裹体

Abstract:

Affected by multistage tectonic movements, hydrocarbon accumulation in Silurian reservoirs of Tarim Basin is of uniqueness. Through systematical analysis methods for fluid inclusions, especially micro-beam fluorescent analysis method on a single fluid inclusion, we aimed to classify Kepingtage Formation hydrocarbon charging events of Well Shun 9 in Shuntuoguole low uplift and define their individual hydrocarbon accumulation ages. Results showed that Kepingtage Formation of Well Shun 9 located in the slope of Shuntuoguole low uplift is characterized by three oil charging episodes and one natural gas accumulation episode, the first oil charging episode occur in 417.5~409.5Ma; the second oil charging episode occurr in late Hercynian (335.0~231.5Ma), which is the major hydrocarbon accumulation period of this well field, oil might be from the Cambrian-Lower Ordovician and Middle-Upper Ordovician source rocks; the third episode occurr in middle-late Himalayan (20.1~19.7Ma) oil are from the Middle-Upper Ordovician source rock,natural gas accumulation time is 23.5~15.3Ma,and gas may be from the Cambrian-Lower Ordovician source rock.

Key words: north slope of Tazhong uplift, Silurian, Shuntuoguole low uplift, hydrocarbon charging event and age, fluid inclusion