西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (5): 147-153.DOI: 10.11885/j.issn.1674-5086.2017.09.06.04

• 石油与天然气工程 • 上一篇    下一篇

盐穴储气库水溶造腔工艺优化研究与现场应用

王元刚, 周冬林, 邓琳, 付亚平, 管笛   

  1. 中国石油天然气股份有限公司西气东输管道分公司储气库项目部, 江苏 镇江 212000
  • 收稿日期:2017-09-06 出版日期:2018-10-01 发布日期:2018-10-01
  • 通讯作者: 王元刚,E-mail:515935924@qq.com
  • 作者简介:王元刚,1986年生,男,汉族,山东临沂人,工程师,硕士,主要从事盐穴储气库水溶造腔相关方面的研究工作。E-mail:515935924@qq.com;周冬林,1987年生,男,汉族,安徽马鞍山人,工程师,硕士,主要从事盐穴储气库地质相关方面的研究工作。E-mail:zhoudonglin@petrochina.com.cn;邓琳,1990年生,女,汉族,重庆潼南人,助理工程师,主要从事油气储运方面的研究工作。E-mail:xqdsdengl@petrochina.com.cn;付亚平,1985年生,男,汉族,湖北广水人,工程师,硕士,主要从事盐穴地下储气库方面的研究工作。E-mail:fu_angle@163.com;管笛,1988年生,男,汉族,江苏扬州人,工程师,硕士,主要从事盐穴储气库造腔管理相关方面的研究工作。E-mail:xqdsgd@petrochina.com.cn
  • 基金资助:
    中国石油重大科技专项(2015E-40)

Study on Improving the Solution-mining Processes of Salt-cavern Gas Storage and Field Applications of the Improved Process Technology

WANG Yuangang, ZHOU Donglin, DENG Lin, FU Yaping, GUAN Di   

  1. Gas Storage Project Department of West-to-east Gas Pipeline Company, PetroChina, Zhenjiang, Jiangsu 212000, China
  • Received:2017-09-06 Online:2018-10-01 Published:2018-10-01

摘要: 盐穴储气库在天然气行业所占比重越来越大,金坛储气库作为国内第一座投产的盐穴储气库,经过工程建设实践发现,很多溶腔工艺存在较大的优化空间。通过分析储气库水溶造腔流程,对造腔过程中涉及到的提高造腔效率,减小造腔耗能以及盐层最大化利用进行分析,提出了水溶造腔的优化工艺:采用反循环造腔大幅度增加排卤盐度,减小井下作业次数缩短不必要的停井时间以加快水溶造强进程,安装光纤界面仪实现阻溶剂界面的实时监控,优化注水量大幅度减小能耗,处理厚夹层以及整体扩容腔体对盐层进行最大化利用。

关键词: 反循环水溶造腔, 光纤界面仪, 注水量优化, 厚夹层处理, 腔体扩容

Abstract: While the salt-cavern gas storage solution is becoming increasingly popular in the natural gas industry, engineering practice shows significant improvement opportunities for many solution-mining processes of the Jintan gas storage, the first commissioned salt-cavern gas storage in China. The solution-mining processes of the gas storage were analyzed to identify opportunities to improve solution-mining efficiency, minimize solution-mining energy consumption, and maximize the utilization of salt layers. The improvement opportunities identified are:employing reverse-circulation solution mining to increase greatly the salinity of the discharged brine; minimizing the number of underground operations and eliminating unnecessary interruptions to mining operations, thereby reducing solution-mining cycle time; installing a fiber-optic interface meter to enable real-time monitoring of the solution-inhibitor interface; optimizing the quantity of water injected to reduce energy consumption; and treating thick intercalated beds and expanding the overall cavern capacity to maximize the utilization of salt layers.

Key words: reverse-circulation solution mining, fiber-optic interface meter, water injection quantity optimization, thick intercalated bed treatment, cavity expansion

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