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- Title
盐穴地下储气库产业链增值增效技术思路.
- Authors
王 文 权
- Abstract
At present, the construction of salt-cavern underground gas storage in China is generally carried out through the cooperation of "salt enterprises and gas enterprises" in the pattern of "salt extraction first and then gas storage". This industry model is simple and has the disadvantages of low value and low efficiency. The difficulty concerned lies in how to make use of the new construction and management technologies to increase the value and efficiency of salt-cavern underground gas storage industry chain and optimize the industry development model. In this paper, the present situation of China's salt-cavern underground gas storage industry chain was analyzed, and the defects and causes of the low value and efficiency in the current industry model were dissected. Then, the related technologies were sorted out and technical ideas and a new cooperation mode for value and efficiency increase were put forward. Finally, the suggestions on and prospect of the implementation and development of the new mode were illustrated. And the following research results were obtained. First, the low value and low efficiency in the current industry model are mainly presented as the low efficiency of brine treatment, the long-term unavailability of cushion gas, the idle of a large number of abandoned cavities, etc. Second, the technical ideas of "salt extraction and gas storage at the same time", "gas-liquid reciprocating replacement" and "gas-electricity linkage peak shaving" can provide the support for the value and efficiency increase of salt-cavern underground gas storage industry chain. Third, an advantageous cooperation mode for the value and efficiency increase of salt-cavern underground gas storage industry chain is newly put forward based on the above technical ideas. In conclusion, in the new mode, different storage energies are linked by improving the solution mining method, making full use of old cavities and introducing the compressed air energy storage technology, which can not only revitalize cushion gas resources and remaining brine resources, but also improve gas storage construction efficiency and realize gas-electricity linkage peak shaving, so as to increase the value and efficiency of salt-cavern underground gas storage industry.
- Subjects
CHINA; COMPRESSED air energy storage; GAS well drilling; GAS storage; UNDERGROUND storage; GAS industry; GEOLOGICAL carbon sequestration
- Publication
Natural Gas Industry, 2021, Vol 41, Issue 3, p127
- ISSN
1000-0976
- Publication type
Article
- DOI
10.3787/j.issn.1000-0976.2021.03.015