资源与产业 ›› 2015, Vol. 17 ›› Issue (4): 48-55.

• 资源开发 • 上一篇    下一篇

习页1井五峰组—龙马溪组页岩特征及含气性评价

张鹏,张金川,黄宇琪,唐玄,王中鹏,彭己君   

  1. 中国地质大学 能源学院,北京 100083
  • 收稿日期:2015-01-21 修回日期:2015-04-14 出版日期:2015-08-20 发布日期:2015-08-20
  • 通讯作者: 张鹏(E-mail: zhangpeng8611@126.com)
  • 作者简介:张鹏(E-mail: zhangpeng8611@126.com)
  • 基金资助:
    国家自然科学基金项目(41102088;41272167);全国油气资源战略选区调查与评价专项(2009GYXQ-15);构造与油气资源教育部重点实验室青年基金项目(TPR-2013-04)

CHARACTERISTICS AND GAS CONTENT EVALUATION OF WUFENG—LONGMAXI FORMATION SHALE IN WELL XIYE-1

ZHANG Peng, ZHANG Jinchuan, HUANG Yuqi, TANG Xuan, WANG Zhongpeng, PENG Jijun   

  1. School of Energy Resources, China University of Geosciences, Beijing 100083, China
  • Received:2015-01-21 Revised:2015-04-14 Online:2015-08-20 Published:2015-08-20

摘要: 在岩心观察和实验测试的基础上,对习页1井钻遇的五峰组—龙马溪组富有机质页岩岩性、地球化学特征、储层特征以及含气性进行系统研究,以期对贵州页岩气勘探开发、有利区优选以及资源潜力评价提供地质依据。研究表明,富有机质页岩为碳质页岩和硅质页岩,主要位于五峰组和龙马溪组底部,为深水陆棚沉积,具有有机质丰度高、热成熟度高、有机质类型好、含气量大的特点,说明黔西北地区五峰组—龙马溪组富有机质页岩段具有良好的页岩气形成的地化条件;从水下隆起—浅水陆棚—深水陆棚环境富有机质页岩自生石英含量逐渐增加,黏土矿物含量逐渐减少;富有机质页岩段储集空间以有机质孔隙为主,天然气多以吸附形式存在;页岩形成的沉积环境和保存条件是控制我国南方地区页岩气含量高低的决定性因素。

关键词: 页岩气, 海相富有机质页岩, 含气量, 习页1井, 保存条件, 黔西北

Abstract: This paper, based on cores observation and tests, studies the lithology, geochemistry, reservoir and gasbearing features of Wufeng—Longmaxi Formation organic shale intersected by Xiye1 well, attempting to provide references in Guizhous shale gas exploration, targets prioritization and resources potential assessment. Organic shale is carboniferous and siliceous, distributing in the bottom of Wufeng formation and Longmaxi formation, belonging to deep water shelf sedimentation characterized by high organic abundance, high thermal maturity, good organic matters and high gas content. It implies a good shale gas reservoir formation. Authigentic quartz content in organic shale rises from subaqueous uplift to shallow water shelf and to deep water shelf, but clay minerals decrease. Organic shale reservoir space is displayed as organic porosity with gas in the form of adsorption. Shales sedimentary environment and preservation controls the gas content of southern China. 

Key words: shale gas, organic-rich marine shale, gas content, Well Xiye-1, preservation conditions, northwestern Guizhou

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