Home Journals Articles Updates About
CN
image
收藏切换
Key Drilling Technology of “S” Shaped Well in the Deep Gas Reservoir of Xujiahe in Western Sichuan
收藏切换
PDF
Xiangyang LIU1, Xuantong LIU1, Wei TAN1, Xiangwei KONG2
Science Technology and Industry | 2025, 25(13) : 34 - 39
Less
收藏切换
Science Technology and Industry | 2025, 25(13): 34-39
• Technology Innovation •
Key Drilling Technology of “S” Shaped Well in the Deep Gas Reservoir of Xujiahe in Western Sichuan
Full
Xiangyang LIU1, Xuantong LIU1, Wei TAN1, Xiangwei KONG2
Affiliations
  • 1 Production Capacity Construction and Exploration Project Department, Southwest Oil & Gas Branch, Sinopec, Deyang 618000, Sichuan, China
  • 2 School of Petroleum Engineering, Yangtze University, Wuhan 430100, China
Published: 2025-07-10
Outline
收藏切换

In response to the technical difficulties of the deep exploration and evaluation well FG119 in the Xujiahe Formation of the Sichuan Basin, an “S” shaped wellbore trajectory was designed, with limited ground conditions, resulting in increased difficulty in trajectory controlling and high safety risks of drilling tools. The implementation plan of the ϕ165.1 mm slimming well was adopted, and the development of fractures in the Xujiahe Formation and the high and low pressure interlayers led to high well controlling risks. Therefore, optimization technology for slimming well wellbore structure, complex trajectory optimization design, establishment of four pressure profiles in fractured formations, and supporting technologies such as pre bending dynamic drilling tool combination, fine pressure control, and friction reduction were carried out. This ensured the smooth completion of the first deep “S” shaped slim well in the work area, providing technical reference for the subsequent construction of complex wellbore track wells in the block.

Xujiahe  /  “S”shaped wellbore trajectory  /  slimming well  /  wellbore structure  /  drilling parameters
Xiangyang LIU, Xuantong LIU, Wei TAN, Xiangwei KONG. Key Drilling Technology of “S” Shaped Well in the Deep Gas Reservoir of Xujiahe in Western Sichuan[J]. Science Technology and Industry, 2025 , 25 (13) : 34 -39 .
Appendix
Less
Year 2025 volume 25 Issue 13
PDF
259
146
Cite this Article
BibTeX
Article Info
  • Receive Date：2025-01-10
  • Online Date：2025-12-17
  • Published：2025-07-10
Article Data
Affiliations
History
  • Received：2025-01-10
Affiliations
    1 Production Capacity Construction and Exploration Project Department, Southwest Oil & Gas Branch, Sinopec, Deyang 618000, Sichuan, China
    2 School of Petroleum Engineering, Yangtze University, Wuhan 430100, China
References
Share
https://castjournals.cast.org.cn/joweb/kjhcy/EN/
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House