Application of Cementing Technology for Shale Gas Horizontal Well in Jiaoshiba Block of Fuling Area

Abstract:

In response to the difficulties happened during shale gas horizontal well cementation in shale reservoir of Jiaoshiba Long maxi group in Fuling, through continuous laboratory tests and analysis on site, this paper achieves the following research results: the method of enhancing cleaning efficiency by further improving ahead fluid system; the method of reducing the shrinkage of cement rock and improving anti-gas channeling ability of cement slurry by perfecting the cement slurry system; method of strengthening the supervision of the placement of centralizers by placing the centralizers reasonably; water substitution method with large flow rate of whole well. All these methods form a comprehensive technology, which is applied in 7 wells, such as JY 29-4HF, JY 8-1HF, and JY 15-2HF and so on. All the cement evaluations are great, which indicates that the comprehensive technology is suitable for shale gas horizontal well cementation in Jiaoshiba.

• Periodical: Applied Mechanics and Materials (Volume 733)
• Pages: 130-135
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.733.130
• Online since: February 2015
• Authors: Yun Hai Cui*, Hai Ping Yang, Jian Feng, Yu Song
• Keywords: Cementing Technology, Horizontal Well, Jiaoshiba Block, Shale Gas

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