特种油气藏 ›› 2021, Vol. 28 ›› Issue (2): 11-19.DOI: 10.3969/j.issn.1006-6535.2021.02.002

• 地质勘探 • 上一篇    下一篇

蜀南地区二叠系火成岩特征及储集性研究

江昱良1, 秦启荣1,2, 高瑞琪3, 崔靖3, 耿超3, 范存辉1   

  1. 1.西南石油大学,四川 成都 610500;
    2.油气藏地质及开发工程国家重点实验室,四川 成都 610500;
    3.中国石油西南油气田分公司蜀南气矿,四川 泸州 646000
  • 收稿日期:2020-07-14 修回日期:2021-01-08 出版日期:2021-04-25 发布日期:2022-02-16
  • 通讯作者: 秦启荣(1964—) ,男,教授,博士生导师,1985 年毕业于成都地质学院地质学专业,2001年毕业于成都理工大学地质工程专业,获博士学位,现从事构造解析、地质力学、裂缝预测等教学和研究工作。
  • 作者简介:江昱良(1995—),男,2018年毕业于西南石油大学资源勘查工程专业,现为该校地质学专业在读硕士研究生,主要从事火山岩、构造地质方面的研究。
  • 基金资助:
    中国石油西南油气田分公司蜀南气矿外协研究项目“蜀南地区2019年度火山岩风险勘探目标评价研究”(XNS03JS2019-237)、“蜀南地区火成岩勘探潜力评价研究”(XNS03JS2019-239)

Study on the Characteristics and Reservoir Quality of Permian Igneous Rocks in Southern Sichuan Basin

Jiang Yuliang1, Qin Qirong1,2, Gao Ruiqi3, Cui Jing3, Geng Chao3, Fan Cunhui1   

  1. 1. Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploration, Chengdu, Sichuan 610500, China;
    3. Shu'nan Gas Field of PetroChina Southwest Oil & Gas Field Company, Luzhou, Sichuan 646000, China
  • Received:2020-07-14 Revised:2021-01-08 Online:2021-04-25 Published:2022-02-16

摘要: 为探索蜀南地区火成岩地质特征与勘探潜力,从研究区野外露头、岩心、岩屑、测录井以及地震等资料入手,对火成岩岩性、岩相、储层特征及其分布进行分析。研究结果表明:蜀南地区火成岩主要发育玄武岩与凝灰岩,玄武岩由南西向北东逐渐减薄至尖灭,凝灰岩则在犍为一带最为发育;岩相主要为溢流相与爆发相,在每种相带的不同纵向区域发育构造缝、溶蚀孔等独特的储集空间;储层主要包括溶蚀的凝灰岩储层与裂缝型玄武岩储层,分别发育于爆发相上部与溢流相裂缝发育区。研究结果对深化蜀南地区火成岩研究提供技术支撑,对该区持续勘探开发的部署具有指导意义。

关键词: 火成岩, 二叠系, 岩性, 岩相, 储集空间, 储层, 蜀南地区

Abstract: In order to find out the geological characteristics and exploration potential of igneous rocks in the Southern Sichuan Basin, the lithology, lithofacies, reservoir characteristics and distribution of igneous rocks were analyzed according to the field outcrops, cores, cuttings, logging and seismic data in the study area. The results showed that the igneous rocks in the Southern Sichuan Basin mainly developed basalt and tuff, the basalt was gradually thinning out from southwest to northeast, and the tuff was most developed in Qianwei County; lithofacies were mainly overflow and explosive facies, and unique reservoir spaces such as tectonic fractures and denudation pores were developed in different vertical areas of each facies belt; the reservoirs mainly included dissolved tuff reservoir and fractured basalt reservoir, which were developed in the upper section of explosive facies and the fracture area of overflow facies. The study results provide technical support for the further study of igneous rocks in the Southern Sichuan Basin and have guiding significance for the sustainable exploration and development in the Southern Sichuan Basin.

Key words: igneous rock, Permian, lithology, lithofacies, reservoir space, reservoir, southern Sichuan Basin

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