新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (5): 489-491.

• 油气勘探 • 上一篇    下一篇

潜江凹陷蚌湖—周矶向斜带温压系统特征及油气分布

康建云1a,1b, 叶加仁1a, 郭飞飞1a,1b, 唐文旭2   

  1. 1.中国地质大学 a.构造与油气资源教育部重点实验室;b.研究生院,武汉 430074;
    2.中国石化 江汉油田分公司 勘探开发研究院,湖北 潜江 433124
  • 收稿日期:2010-03-17 发布日期:2020-10-21
  • 作者简介:康建云(1983-),男,江西遂川人,在读硕士研究生,油气成藏动力学,(Tel)15172407448(E-mail)kjyun@126.com.

Characteristics of Geothermal-Geopressure System and Its Relationship with Oil and Gas Distribution in Banghu-Zhouji Syncline Belt in Qianjiang Sag

KANG Jian-yun1,2, YE Jia-ren1, GUO Fei-fei1,2, TANG Wen-xu3   

  1. 1. MOE Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Wuhan, Hubei 430074, China;
    2. Graduate School, China University of Geosciences, Wuhan, Hubei 430074, China;
    3. Research Institute of Exploration and Development, Jianghan Oilfield Company, Sinopec, Qianjiang, Hubei 433124, China
  • Received:2010-03-17 Published:2020-10-21

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摘要： 蚌湖—周矶向斜带是潜江凹陷最好的生烃向斜带,具有丰富的油气资源。利用90 余口探井的实测温压数据,对蚌湖—周矶向斜带的地温场、地压场、温压系统纵横向分布特征进行了剖析,并探讨了它们与油气分布的关系。研究表明,蚌湖—周矶向斜带具有较高的地温梯度,有利于烃源岩成熟与油气生成;深部发育的弱超压可为油气运移提供重要的驱动力;纵向上具有高压型复式温压系统特征,但油气的垂向运移能力较差,以较短距离的侧向运移为主;平面上各含油层系的油藏主要分布于流体能量相对低能区,且环绕或紧邻相对高能区发育。

关键词: 潜江凹陷, 温度场, 压力场, 温压系统, 油气分布

Abstract: Banghu-Zhouji syncline belt is the best source belt in Qianjiang sag with abundant hydrocarbon resources. Based on the theory of geothermal-geopressure system and observed temperature-pressure data from more than 90 wells, this paper analyzes the plane and section characteristics of the geothermal field, geopressure field and geothermal-geopressure system in Banghu-Zhouji syncline belt as well as the relationship between these characteristics and hydrocarbon distribution. The research shows that the high geothermal gradient in Banghu-Zhouji syncline belt is propitious to the maturity of source rocks and generation of hydrocarbons; the deep low overpressure could be as the important motivating force for petroleum migration; vertically, it has the characteristic of overpressure complex geothermalgeopressure system, but the vertical migration capacity of hydrocarbons is weaker, being dominated by short-range lateral migration; laterally, various oil-bearing reservoirs are mainly distributed in the areas with relatively low fluid energy, which is surrounding or adjacent to the areas with relatively high fluid energy.

Key words: geothermal field, geopressure field, geothermal-geopressure system, oil-gas distribution, Banghu-Zhouji syncline belt

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