Performance Evaluation of and Research on Anti-Gas Channeling Cement Slugs

Lanbo Xu; Chaodong Luo; Shuang Shi; Long He; Xiaoming Wu

doi:10.1007/s10553-019-01019-3

Performance Evaluation of and Research on Anti-Gas Channeling Cement Slugs

作者: Xu L.¹, Luo C.², Shi S.³, He L.⁴, Wu X.¹
隶属关系:
1. Faculty of Engineering, China University of Geosciences
2. Drilling Research Institute of SINOPEC Southwest Engineering Company
3. PetroChina West East Gas Pipeline Company
4. SINOPEC Southwest Oil and Gas Branch
期: 卷 55, 编号 2 (2019)
页面: 183-188
栏目: Article
URL: https://journals.rcsi.science/0009-3092/article/view/235804
DOI: https://doi.org/10.1007/s10553-019-01019-3
ID: 235804

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详细

Slug anti-gas channeling technology was studied in laboratory experiments to optimize the micro-expansion behavior of its material. The technology included sealing of an outer pipe, injection of cement slurry into the casing annulus, and activation and solidification of the cement slurry as a function of temperature and other external conditions. The technology could effectively seal an oil or gas well and solve the problem of wellhead pressure.