西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

台北凹陷侏罗系含油气系统天然气序列性研究

张俞1 *,张金川1,杨升宇2,黄卫东3   

  1. 1. 中国地质大学(北京)能源学院,北京海淀100083
    2. 德国地学研究中心,德国波茨坦D14473
    3. 中国石油吐哈油田有限责任公司勘探开发研究院,新疆哈密839009
  • 出版日期:2015-10-01 发布日期:2015-10-01
  • 通讯作者: 张俞,E-mail:eagletzhang@126.com
  • 基金资助:

    国土资源部全国油气资源战略选区调查与评价专项(2009GYXQ15)。

Natural Gas Accumulation Sequence Research:A Case Study on#br# Jurassic Petroleum System in Taibei Sag

Zhang Yu1*, Zhang Jinchuan1, Yang Shengyu2, Huang Weidong3   

  1. 1. School of Energy Resources,China University of Geosciences(Beijing),Haidian,Beijing 100083,China
    2. German Research Center for Geosciences,Potsdam D14473,Germany
    3. Tuha Oilfield Company,CNPC,Hami,Xinjiang 839009,China
  • Online:2015-10-01 Published:2015-10-01

摘要:

吐哈盆地台北凹陷侏罗系含油气系统常规天然气、致密砂岩气和页岩气资源丰富。通过对吐哈盆地台北凹陷
侏罗系地质条件的分析研究,指明在侏罗系含油气系统内页岩气、致密砂岩气和常规天然气在空间展布和储层特征等
方面的序列性特征。结合该区的勘探开发实践,总结出:在同一个含油气系统的前提下,页岩气、致密砂岩气和常规天
然气具有共生性强的特点,认为它们是先后经历了源岩内滞留、初次运移、二次运移和成藏聚集等过程,分别在泥页
岩、致密砂岩和常规储层中形成的不同类型的天然气聚集。并归纳出他们在运移阶段、成藏时间、空间分布、含气特
点、开发技术、产量储量特征和勘探开发阶段等方面序列性特点。最终认为在同一含油气系统中只要具备合适的地质
条件,在一种类型天然气发现后,通过“顺藤摸瓜”的方法来寻找其他类型天然气是一种新的勘探思路。

关键词: 台北凹陷, 含油气系统, 天然气序列, 页岩气, 致密砂岩气

Abstract:

Conventional gas,tight gas and shale gas are very rich in Jurassic petroleum system in Taibei Sag. Geological
analysis pointed out that the distribution rules and reservoir features of the shale gas,tight gas and conventional gas are of
sequential characteristics. Based on exploration and development practices,we concluded that shale gas,tight gas and conventional
gas always exist together in a petroleum system. They have experienced source rock retaining,primary migration,
secondary migration and accumulation,and formed different types of gas reservoirs in shale,tight sand and conventional reservoirs
respectively. Sequential characteristics including migration periods,accumulation times,distributions,gas contents,
development techniques,reserve characteristics and E & P periods were summarized. In one petroleum system with suitable
geological environments,different types of gas reservoirs can be found after any types of reservoirs in the sequence which was
discovered first. This rule could be a new approach in gas exploration.

Key words: Taibei Sag, petroleum system, gas sequence, shale gas, tight gas

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