Sichuan–Shanghai Parallel Gas Pipeline

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Sichuan–Shanghai Parallel Gas Pipeline 川气东送二线, also known as the Second Sichuan–East Gas Transmission Pipeline, is a gas pipeline with segments that are proposed and in construction in China.[1]

Location

The pipeline will run from Weiyuan, Sichuan, China to Wenzhou, Zhejiang, China. Its route is mostly parallel to that of the Sichuan–Shanghai Gas Pipeline,[1] but divergent to it after Xuancheng, Anhui, heading to Zhejiang Province, and ending up in Wenzhou, Zhejiang.[2]

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Background

The sources of the pipeline are multiple gas fields in the Sichuan Basin.

On May 22, 2021, a feasibility report of the pipeline passed expert review. [1]The Sichuan–Shanghai Parallel Gas Pipeline has a total length of 4,269 kilometers, passing through eight provinces and municipalities including Sichuan, Chongqing, Hubei, Henan, Jiangxi, Anhui, Zhejiang, and Fujian. The entire line is approved for construction in phases, divided into the western section (Sichuan–Chongqing–Hubei section) and the eastern section (Hubei–Henan–Jiangxi–Anhui–Zhejiang–Fujian section). Construction of the western section officially commenced in September 2023, with Phase I now over 70% complete.[3]

Project details

Western Section (Sichuan–Chongqing–Hubei) 川气东送二线西段（川渝鄂段）

The Western Section (Sichuan–Chongqing–Hubei) of the Sichuan–Shanghai Parallel Gas Pipeline officially commenced construction on September 15, 2023. It consists of one main trunk line and 12 branch lines, with a total length of 1,576 kilometers, passing through the three provinces and municipalities of Sichuan, Chongqing, and Hubei.[4]

The Weiyuan–Qiangjiang Trunk Gas Pipeline is the main trunk line of the Western Section (Sichuan–Chongqing–Hubei) and is composed of Weiyuan/Lu County —Tongliang Trunk Line and Tongliang—Qianjiang Trunk Line.

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Screenshot 2024-09-18 at 3.23.06 PM.png

Weiyuan/Lu County —Tongliang Trunk Line 威远/泸县—铜梁输气干线

  • Operator: National Pipe Network Group Southwest Pipeline Co.,Ltd.（ 国家管网集团西南管道有限责任公司）[5]
  • Owner: National Pipe Network Group Southwest Pipeline Co.,Ltd.（ 国家管网集团西南管道有限责任公司）
  • Parent company:
  • Capacity: 20 bcm/year[5]
  • Length: 282.77 km[5]
  • Diameter: 1016 mm( Weiyuan-Neijiang), 1219 mm(Lu County-Tongliang)[5]
  • Status: Construction[6][7]
  • Start year:
  • Cost: 6.123 billion RMB[5]

Tongliang—Qianjiang Trunk Line 铜梁—潜江输气干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司)[8]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司)[8]
  • Parent company:
  • Capacity: 20.2 bcm/year[9]
  • Length: 855 km[9]
  • Diameter: 1219 mm[8]
  • Status: Construction[9]
  • Start year:
  • Cost: 24.028 billion RMB[10]

Daying-Anyue-Tongliang Gas Pipeline 大英-安岳-铜梁支干线

Screenshot 2024-09-18 at 8.02.39 PM.png
  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司)[11]
  • Owner: National Petroleum and National Gas Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司)
  • Parent company:
  • Length: 121 km [11]
  • Capacity: 6.19bcm/year[12]
  • Diameter: 711 mm[11]
  • Status: Proposed[13]
  • Start year:
  • Cost:

Moujiaping and Laowengchang Gas Storage Pipeline 牟家坪老翁场储气库支干线

Screenshot 2024-09-18 at 6.23.46 PM.png
  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [11]
  • Owner: National Petroleum and National Gas Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司)
  • Parent company:
  • Length: 100.9 km [11]
  • Capacity: 11.60 bcm/year[12]
  • Diameter: 914 mm[11]
  • Status: Proposed[13]
  • Start year:
  • Cost:

Tongluoxia Gas Storage Branch 铜锣峡储气库支干线

Screenshot 2024-09-18 at 2.58.15 PM.png
  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [11]
  • Owner: National Petroleum and National Gas Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司)
  • Parent company:
  • Length: 33.56 km [11]
  • Capacity: 2.66 bcm/year[12]
  • Diameter: 711 mm[11]
  • Status: Proposed[13]
  • Start year:
  • Cost:

Huangcaoxia Gas Storage Branch 黄草峡储气库支干线

Screenshot 2024-09-18 at 6.48.27 PM.png
  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [11]
  • Owner: National Petroleum and National Gas Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司)
  • Parent company:
  • Length: 39.24 km [11]
  • Capacity: 3.1 bcm/year[12]
  • Diameter: 711 mm[11]
  • Status: Proposed[13]
  • Start year:
  • Cost:

Yubei Branch (Dawan-Yubei) 渝北供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 10.77 km [15]
  • Capacity: 0.24 bcm/year[14]
  • Diameter: 219.1 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:

Bishan Branch (Chengjiang-Bishan) 璧山供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 11.4 km [14]
  • Capacity: 0.175 bcm/year[14]
  • Diameter: 219.1 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:

Hechuan Branch (Jiu County-Hechuan) 合川供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 8.6 km [14]
  • Capacity: 0.195 bcm/year[14]
  • Diameter: 219.1 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:

Tongnan Branch (Valve Chamber No.4-Tongnan) 潼南供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 17.72 km [14]
  • Capacity: 0.4 bcm/year[14]
  • Diameter: 219.1 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:

Changshou Branch (Huangcaoxia-Changshou) 长寿供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 14.18 km [14]
  • Capacity: 0.45 bcm/year[14]
  • Diameter: 273 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:

Dianjiang Branch (Valve Chamber No.16-Dianjiang) 垫江供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 5.69 km [14]
  • Capacity: 0.048 bcm/year[14]
  • Diameter: 219.1 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:

Badong Branch( Valve Chamber No.34-Badong) 巴东供气支干线

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  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 62.64 km [14]
  • Capacity: 0.02 billion cubic meters[17]
  • Diameter: 291.1 mm[17]
  • Status: Proposed[16][18]
  • Start year:
  • Cost: 273 million RMB[17]

Dazu Branch (Valve Chamber No. 6-Dazu) 大足供气支干线

  • Operator: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Owner: National Pipe Network Group Southwest Pipeline Co., Ltd.(国家管网集团西南管道有限责任公司) [14]
  • Parent company:
  • Length: 11.97 km [14]
  • Capacity: 0.25 bcm/year[14]
  • Diameter: 219.1 mm[14]
  • Status: Proposed[16]
  • Start year:
  • Cost:


Eastern Section (Hubei–Henan–Jiangxi–Anhui–Zhejiang–Fujian) 川气东送二线东段（鄂豫赣皖浙闽段）

The Eastern Section has a total length of 2,698 kilometers, comprising one main trunk line, two connecting lines, and three branch lines. The pipeline has an annual transmission capacity of 14 billion cubic meters. In February 2025, construction of the eastern section commenced.[19]

Xiantao-Wenzhou Trunk Line 鄂豫赣皖浙闽段干线(仙桃-温州)

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  • Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Owner: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Parent company:
  • Length: 1260 kilometers[21]
  • Capacity: 13 bcm/year (Xiantao-Xuancheng), 14 bcm/year (xuancheng-Wenzhou)[21]
  • Diameter: 1016mm(Xiantao-Xuancheng), 1219mm(xuancheng-Wenzhou)[22]
  • Status: Construction[23]
  • Start year:
  • Cost: 48.61 billion RMB[21]

Zaoyang–Xuancheng Connecting Pipeline 枣阳-宣城联络线

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  • Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Owner: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Parent company:
  • Length: 787.2 km[21]
  • Capacity: 9.53 bcm/year[21]
  • Diameter: 1016 mm[21]
  • Status: Construction[23]

Wuhu Branch (Wuhu–Ma'anshan) 芜湖联络线（芜湖-马鞍山）

  • Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Owner: Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Parent company:
  • Length: 68.2 km[24]
  • Capacity: 0.75 bcm/year[24]
  • Diameter: 508 mm[24]
  • Status: Construction[23]

Wenzhou–Fuding Pipeline 浙闽支干线 (温州-福鼎)

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  • Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Owner: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司) [20][21]
  • Parent company:
  • Length: 150 km[24]
  • Capacity: 10 bcm/year[24]
  • Diameter: 1016 mm[24]
  • Status: Construction[23]
  • Start year:
  • Cost：

Huainan-Bozhou Branch Line 皖西支干线 (淮南-亳州)

  • Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司)[25]
  • Owner: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司)[25]
  • Parent company:
  • Length: 208.4 kilometers[25]
  • Capacity: 1.97 bcm/year[25]
  • Diameter: 1016 mm[25]
  • Status: Proposed[25]
  • Start year:
  • Cost:

Anqing–Poyang Branch Line 皖赣支干线 (安庆-鄱阳)

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  • Operator: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司)[25]
  • Owner: West to East Gas Transmission Branch of National Petroleum Pipeline Network Group Co., Ltd.(国家石油天然气管网集团有限公司西气东输分公司)[25]
  • Parent company:
  • Length: 169.5 kilometers[25]
  • Capacity: 4.31 bcm/year[25]
  • Diameter: 1016 mm[25]
  • Status: Proposed[25]
  • Start year:
  • Cost:

Articles and resources

References

  1. ↑ 1.0 1.1 1.2 川气东送二线工程即将开工建设, gas.in-en, Jun. 22, 2021, accessed Aug. 19, 2021.
  2. ↑ "川气东送二线天然气管道工程（鄂皖赣浙闽段）干线工程（湖北段）项目社会稳定风险评估公示及公众参与公告（一次）_武汉资讯_长江网_cjn.cn". zx.cjn.cn. 2021-08-12. Retrieved 2021-09-22.{{cite web}}: CS1 maint: url-status (link)
  3. ↑ "国家"十四五"重大工程：川气东送二线天然气管道东段全面推进". 2025-02-21. Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  4. ↑ "人民网："川气出川"再添新通道 川气东送二线天然气管道工程开建". 2023-09-18. Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  5. ↑ 5.0 5.1 5.2 5.3 5.4 "生态环境部关于川气东送二线天然气管道工程川渝鄂段（一阶段）环境影响评价文件拟进行审查公示". 2023-07-26. Retrieved 2023-08-21.{{cite web}}: CS1 maint: url-status (link)
  6. ↑ "川气东送二线天然气管道工程川渝鄂段开工建设 陈鸣波盛阅春张伟出席". 2023-09-16. Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  7. ↑ "5月底完成站内管道焊接！川气东送二线铜梁压气站建设顺利". 2025-05-09. Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  8. ↑ 8.0 8.1 8.2 "关于川气东送二线天然气管道工程川渝鄂段（二阶段）环境影响报告书的批复". 2025-01-01. Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  9. ↑ 9.0 9.1 9.2 "长江云：​年管输能力超湖北消费量2倍 川气东送二线川渝鄂段（铜梁－潜江）开工". 2025-01-06. Retrieved 2025-08-14. {{cite web}}: zero width space character in |title= at position 5 (help)CS1 maint: url-status (link)
  10. ↑ "川气东送二线天然气管道工程川渝鄂段(二阶段)环境影响报告书". Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  11. ↑ 11.00 11.01 11.02 11.03 11.04 11.05 11.06 11.07 11.08 11.09 11.10 11.11 "川气东送二线天然气管道工程川渝鄂段(二阶段)环境影响评价公众参与第一次公示". 2023-06-06. Retrieved 2023-09-06.
  12. ↑ 12.0 12.1 12.2 12.3 "关于川气东送二线天然气管道工程川渝鄂段（二阶段）环境影响报告书的批复". 2025-01-02. Retrieved 2025-08-14.{{cite web}}: CS1 maint: url-status (link)
  13. ↑ 13.0 13.1 13.2 13.3 川气东送二线天然气管道工程川渝鄂段二阶段永久用地征地组卷及不动产登记委托技术服务招标公告, 采招网, 2024-07-02
  14. ↑ 14.00 14.01 14.02 14.03 14.04 14.05 14.06 14.07 14.08 14.09 14.10 14.11 14.12 14.13 14.14 14.15 14.16 14.17 14.18 14.19 14.20 14.21 14.22 14.23 14.24 14.25 14.26 14.27 14.28 14.29 14.30 14.31 14.32 14.33 14.34 14.35 14.36 "川气东送二线天然气管道工程川渝鄂段(三阶段)首次环境影响评价信息公开". 2025-04-30. Retrieved 2025-08-14.{{cite web}}: CS1 maint: url-status (link)
  15. ↑ "关于川气东送二线天然气管道工程川渝鄂段 水土保持方案报告书技术评审意见的报告" (PDF). 2022-08-23. Retrieved 2025-08-14. {{cite web}}: line feed character in |title= at position 33 (help)CS1 maint: url-status (link)
  16. ↑ 16.0 16.1 16.2 16.3 16.4 16.5 16.6 16.7 "国家重点项目川气东送二线川渝鄂段正式获核准批复". 2022-10-13. Retrieved 2025-08-14.{{cite web}}: CS1 maint: url-status (link)
  17. ↑ 17.0 17.1 17.2 "川气东送二线天然气管道工程（川渝鄂段）巴东供气支线工程_长江网_cjn.cn". zx.cjn.cn. 2021-10-15.{{cite web}}: CS1 maint: url-status (link)
  18. ↑ 恩施州全力做好春节期间能源保供稳价, 璀璨湖北, 2024-01-29
  19. ↑ "央视新闻：川气东送二线东段工程全面加速建设 预计2027年全线贯通". 2025-02-16. Retrieved 2025-08-13.{{cite web}}: CS1 maint: url-status (link)
  20. ↑ 20.0 20.1 20.2 20.3 20.4 20.5 20.6 20.7 "国家石油天然气管网集团有限公司西气东输分公司". QCC. Retrieved 2023-09-04.
  21. ↑ 21.00 21.01 21.02 21.03 21.04 21.05 21.06 21.07 21.08 21.09 21.10 21.11 21.12 21.13 "川气东送二线天然气管道工程鄂豫赣皖浙闽段项目(干线、枣阳-宣城联络线、芜湖联络线、浙闽支干线)首次环境影响评价信息公开". 2024-01-10. Retrieved 2025-08-18.{{cite web}}: CS1 maint: url-status (link)
  22. ↑ "川气东送二线天然气管道工程鄂豫赣皖浙闽段项目(干线、枣阳-宣城联络线、芜湖联络线、浙闽支干线)首次环境影响评价信息公开". 2024-01-10. Retrieved 2025-08-18.{{cite web}}: CS1 maint: url-status (link)
  23. ↑ 23.0 23.1 23.2 23.3 "川气东送二线东段工程全面加速建设 预计2027年全线贯通". 2025-02-16. Retrieved 2025-08-18.{{cite web}}: CS1 maint: url-status (link)
  24. ↑ 24.0 24.1 24.2 24.3 24.4 24.5 "川气东送二线天然气管道工程鄂豫赣皖浙闽段项目(干线、枣阳-宣城联络线、芜湖联络线、浙闽支干线)首次环境影响评价信息公开". 2024-01-10. Retrieved 2025-08-18.{{cite web}}: CS1 maint: url-status (link)
  25. ↑ 25.00 25.01 25.02 25.03 25.04 25.05 25.06 25.07 25.08 25.09 25.10 25.11 "川气东送二线天然气管道工程鄂豫赣皖浙闽段项目(皖西支干线、皖赣支干线)环境影响报告书" (PDF). 2025-03. Retrieved 2025-08-19. {{cite web}}: Check date values in: |date= (help)CS1 maint: url-status (link)

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External resources

External articles

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