Technical difficulties in the cementing of horizontal shale gas wells in Weiyuan block and the countermeasures

Technical difficulties in the cementing of horizontal shale gas wells in Weiyuan block and the countermeasures

When well cementing is conducted in horizontal shale gas wells in Weiyuan block of the Weiyuan–Changning State Shale Demonstration Area, Sichuan Basin, the oil-based drilling fluid is not compatible with cement slurry, is difficult to be displaced because of its high density, and cement sheath tends...

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Bibliographic Details
Main Authors: Jinping Yuan, Yongjin Yu, Shuoqiong Liu, Ming Xu, Lianjiang Li, Jiyun Shen
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2016-05-01
Series:Natural Gas Industry B
Subjects:
Sichuan Basin
Weiyuan–Changning State Shale Demonstration area
Weiyuan block
Horizontal shale gas wells
Wellbore integrity
Oil-displacement preflush
Toughening set cement
Theoretical model
Cementing
Online Access:http://www.sciencedirect.com/science/article/pii/S2352854016300614

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http://www.sciencedirect.com/science/article/pii/S2352854016300614

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