土工基础

›› 2014, Vol. 28 ›› Issue (6): 92-95.

• 工程实录 • 上一篇    下一篇

金坛盐矿工程地质特性研究

黄孟云1,刘 伟2,施锡林2   

  1. （1.中国石油化工股份有限公司 天然气川气东送管道分公司 金坛储气库项目部,江苏金坛 213200;2.中国科学院 武汉岩土力学研究所 岩土力学与工程国家重点实验室,武汉 430071）
  • 收稿日期:2014-09-18 出版日期:2014-12-25 发布日期:2015-01-12
  • 作者简介:黄孟云（1962-），男，高级工程师，研究方向为盐岩中能源储库的工程建设与研究工作。
  • 基金资助:

    基金项目：国家自然科学基金资助项目（41472285;51274187）

Engineering Geology Characteristics of Jintan Salt Mine

HUANG Mengyun1, LIU Wei2, SHI Xilin2   

  1. (1. Jintan Gas Storage Project Dpt., SINOPEC SichuantoEast Natural Gas Transmission Pipeline Co., Jintan, 213200;
    2. Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan, 430071)
  • Received:2014-09-18 Online:2014-12-25 Published:2015-01-12

摘要： 在盐矿地层中建造地下油气储库群，是国际上广泛采用的能源储备方式。为了论证在金坛深部盐岩地层中建造大型储气库的可行性，针对金坛盐岩的区域地质构造特性和层状盐岩赋存特性，开展了相关物探和地质特性研究工作。研究结论如下：（1）金坛盐盆的沉积构造边界受周围几条断层控制，但这些断层如今已不活动，属于压性断层，密闭性较好；（2）区域内盐岩层主要分布于始新统阜宁组四段，呈盐岩与非盐夹层韵律分布，水平构造、向四周渐趋尖灭，厚度达68～231 m，盐质较佳，储库潜力十分巨大；（3）盐层上覆盖层和下伏底板均为封闭性能较好的泥岩、石膏岩等致密岩层构成，有利于拟建储气库的密封性。综上可知：金坛盐盆的区域封闭性和稳定性极为良好，可作为储气库建造的较好备选场址。

关键词: 储气库, 区域地质构造, 断层, 密闭性, 盐岩

Abstract: Energy storage caverns constructed in salt formations is one of the most widely adopted patterns in the world. To explore the feasibility of storage clusters in the Jintan deep salt mine, the geophysical explorations and research works have been performed on the regional geological and tectonic characteristics as well as the geological occurrence of the salt mine. The following conclusions have been obtained: 1) the sedimentary boundaries of Jintan salt basin are controlled by several faults. These faults, which are currently inactive, belong to the compressional faults, and have fairly gas tight character. 2) The salt mines mainly deposit in the fourth section of FuNing Group, Eocene Series. The salt layer and other layers are horizontally alternatively deposited. The salt layers are gradually wedging out in all directions. In the center area of salt basin, the thickness of salt is in range of 68231m with a good engineering property. The salt rock in this area has a great potential for the energy storage. (3) Both the overlying and the underling rock consist of mudstone, glauberite and other very low permeability rock formations. They have excellent gas tight property for the proposed storageclusters. In conclusion, the regional stability and tightness of Jintan salt basin are satisfactory and can be selected as the candidate site for energy storage clusters.

Key words: Gas storage Caverns, Regional Geological Tectonics, Rock Faults, Gas Tightness, Salt Rock Mass