石油学报 ›› 1996, Vol. 17 ›› Issue (1): 32-39.DOI: 10.7623/syxb199601005

• 地质勘探 • 上一篇    下一篇

风化店火山岩岩相、储集性与油气的关系

罗静兰1, 曲志浩1, 孙卫1, 石发展2   

  1. 1. 西北大学;
    2. 地矿部第三石油普查大队
  • 收稿日期:1993-12-11 修回日期:1995-02-28 出版日期:1996-01-25 发布日期:2010-11-23
  • 作者简介:罗静兰,女,1982年毕业于西北大学地质系。现主要从事岩石学教学及石油地质学研究工作,副教授。通讯处:西安市西北大学地质系。邮政编码:710069。

THE RELATIONS BETWEEN LITHOFACIES, RESERVOIR LITHOLOGY AND OIL AND GAS OF VOLCANIC ROCKS IN FENGHUADIAN AREA

Luo Jinglan1, Qu Zhihao1, Sun Wei1, Shi Fazhan2   

  1. 1. Northwest University;
    2. The Third Petroleum Survey Team, Ministry of Geology and Mineral Resources
  • Received:1993-12-11 Revised:1995-02-28 Online:1996-01-25 Published:2010-11-23

摘要: 风化店火山岩主要为钙碱性酸性火山岩,少量碱中性和碱中酸性火山岩.其主要储集孔隙为原生气孔和次生溶蚀孔(洞),构造裂缝及风化裂缝在油气运移过程中主要起输导管作用.火山岩可划分出三个岩相带:火山爆发相、火山溢流相和火山沉积相.火山岩体的储集性能与这三个相带密切相关,油气主要分布在火山爆发相和火山溢流相带.

关键词: 中生界, 火山岩, 岩石成分, 储集层, 岩相

Abstract: The volcanic rocks in Fenghuadian area are composed mainly of calc-alkaline acidic volcanic rocks,containing a small amount of alkaline intermediate or intermediate-acidic volcanics.The main oil reservoir porosities in the rocks are primarily vesicles and secondary dissolution openings.The structural and weathering fissures or cracks just were the carrier for transporting petroleum.The volcanics can be divided into three lithofacies:volcanic explosive facies,effusive fades and volcano-sedimentary facies.The reservior properties are closely related with the three facies.Oil is mainly distributed in the explosive and effusive facies.

Key words: Mesozoic era, volcanic rocks, rock composition, reservoir, lithofades