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Jiao J.,Southwest Petroleum Bureau Cementing Company | Yao Y.,Southwest Petroleum Bureau Cementing Company | Shu Q.,Southwest Petroleum Bureau Cementing Company | Guo G.,Southwest Petroleum Bureau Cementing Company | Feng Y.,Southwest Petroleum Bureau Cementing Company
Drilling Fluid and Completion Fluid | Year: 2012

In this paper, the difficulties and treating methods of cementing in gas medium are introduced, such as casing and "U" pipe effect. The formulation of cement slurry is optimized that can be used to carry out cementing in gas medium. The application in cementing of φ 244.5 mm casing in well YL1 shows that the high quality percent rate of cementing job is 69.2%, which indicates that in gas medium, not only the cementing job term can be reduced, but also the cementing job quality can be improved sharply. Source

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