Journal of Southwest Petroleum University(Science & Technology Edition) ›› 2026, Vol. 48 ›› Issue (4): 188-196.DOI: 10.11885/j.issn.1674-5086.2025.12.24.03

• A Special Issue on Construction Technologies of Depleted Oil Reservoir Underground Gas Storages • Previous Articles    

Selection Analysis of Centrifugal Compressors for Gas Storage Facilities

ZOU Xuejing1, ZHANG Xu2, WANG Xufeng1, LI Mengxia1, MENG Hong1   

  1. 1. North China Branch, China Petroleum Engineering & Construction Corporation, Renqiu, Hebei 062550, China;
    2. PetroChina Jidong Oilfield Company, Tangshan, Hebei 063004, China
  • Received:2025-12-24 Online:2026-07-17 Published:2026-07-17
  • About author:邹雪净,1993年生,女,汉族,河北张家口人,工程师,主要从事储气库、天然气处理等方面的研究工作。E-mail:1312588691@qq.com
    张旭,1983年生,女,汉族,吉林白山人,高级工程师,主要从事储气库、油气集输与处理地面工程方面的设计工作。E-mail:sjy_zx@petrochina.com.cn
    王旭锋,1986年生,男,汉族,辽宁本溪人,高级工程师,硕士,主要从事天然气储运、多元介质地下储能等方面的研究工作。E-mail:71268765@qq.com
    李梦匣,1996年生,女,汉族,河北定州人,工程师,硕士,主要从事油气田处理方面的工作。E-mail:1724286928@qq.com
    孟红,1982年生,女,汉族,山东单县人,高级工程师,主要从事储气库、天然气处理地面工程设计工作。E-mail:846242918@qq.com

Abstract: Gas injection compressors serve as the core power equipment for pressurized gas injection in gas storage, and the unit configuration scheme directly determines the peak-shaving capacity, operational stability and energy consumption level of gas storage. To clarify the adaptation law of centrifugal compressors with different structures in gas storage engineering, optimize the type selection and configuration of compressors, and reduce the project operation cost, a study on the type selection and application of centrifugal compressors for gas storage is carried out. Adopting the methods of literature investigation, structural comparative analysis and engineering economic comparison, this paper systematically summarizes the application status and technical development trend of compressors in domestic gas storage facilities. The structural characteristics, technical bottlenecks and applicable working conditions of three mainstream centrifugal compressor units, namely single-cylinder single-stage, single-cylinder two-stage and high-low pressure cylinder types, are compared and analyzed. Combined with actual gas storage engineering projects, quantitative economic comparison of different compressor configuration schemes (single-cylinder single-stage and single-cylinder two-stage) is conducted from the dimensions of equipment cost, operating energy consumption and maintenance cost. The research results show that the single-cylinder single-stage unit features a simple structure and is suitable for low-pressure conventional gas injection scenarios, while the single-cylinder two-stage centrifugal compressor matches the injection operating conditions of medium-to-high-pressure gas storage and delivers optimal overall performance. The research conclusions define the adaptation boundaries of different types of centrifugal compressors as well as the bottlenecks and improvement directions of domestic centrifugal compressors, which can provide theoretical reference and technical guidance for the type selection, structural optimization and engineering configuration of compressors in gas storage facilities.

Key words: gas storage, centrifugal compressor, single-cylinder two-stage type, configuration and type selection, economy

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