新疆石油地质 ›› 2011, Vol. 32 ›› Issue (5): 480-483.

• 油气勘探 • 上一篇    下一篇

马朗凹陷火山岩成岩作用及其对储集层物性的影响

雷海艳1, 柳成志1, 何仁忠2a, 王昕2a, 陈璇2b, 于海山1   

  1. 1.东北石油大学地球科学学院,黑龙江大庆 163318;
    2.中国石油吐哈油田分公司a.勘探部;b.勘探开发研究院,新疆哈密 839009
  • 收稿日期:2011-02-28 出版日期:2011-10-01 发布日期:2020-08-19
  • 作者简介:雷海艳(1987-),女,四川遂宁人,硕士,石油地质,(Tel)0459-6504670(E-mail)leihaiyan0305@126.com.

Diagenesis of Volcanic Rocks and Its Effects on Physical Properties of Reservoirs of Kalagang Formation in Malang Sag of Santanghu Basin

LEI Hai-yan1, LIU Cheng-zhi1, HE Ren-zhong2a, WANG Xin2a, CHEN Xuan2b, YU Hai-shan1   

  1. 1. College of Earth Science, Northeast Petroleum University, Daqing, Heilongjiang 163318, China;
    2. Tuha Oilfield Company, PetroChina, a. Exploration Department, b. Research Institute of Exploration and Development, Hami, Xinjiang 839009, China
  • Received:2011-02-28 Online:2011-10-01 Published:2020-08-19

摘要: 在大量岩心描述的基础上,结合室内岩石薄片鉴定、铸体薄片孔隙特征分析、显微照相及扫描电镜观察,对马朗凹陷上石炭统卡拉岗组火山岩储集层的岩石学特征及成岩作用进行了研究。结果表明:卡拉岗组火山岩岩石类型主要由玄武岩、安山岩和火山角砾岩组成;挥发分逸散作用、溶解作用、风化淋滤作用使储集层物性变好;充填作用使储集层物性变差;交代作用具有双重性,并且交代层位和矿物迁移后充填层位具有垂直分带的规律性,交代层位储集层物性变好。

关键词: 马朗凹陷, 卡拉岗组, 火山岩储集层, 成岩作用, 次生孔隙

Abstract: Based on the core description, thin section analysis, pore character, microphotograph and scanning electric microscope observation, the petrological characteristics and diagenesis of volcanic reservoirs of Kalagang formation of the Upper Carboniferous in Malang sag are studied. The results show that the volcanic rocks of Kalagang formation consist mainly of basalt, andesite and volcanic breccia; the vaporization of volatile matter, dissolution, weathering and leaching process allow the reservoir quality to be better, the filling process makes the reservoir quality become poor, and the metasomatism is of the dual nature. The horizon of Metasomatism and the level of filling after mineral transmigration have a regularity of vertical zonation, of which the former becomes better in petrophysical property.

Key words: Malang sag, Kalagang formation, volcanic reservoir, diagenesis, secondary pore

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