Safety and Fast Horizontal Drilling Technology in Xujiahe Formation of Western Sichuan Basin

Chunyu FENG


Xu-2 formation in Xinchang structure of Western Sichuan Basin is a dense fractured reservoir which is buried deeply. Horizontal well drilling technology can effectively develop such gas reservoir. In this paper, first horizontal well of Xinchang Structure ­­Xin10-1H well was taken as an example, the difficulties encountered in its safety and fast drilling were analyzed and corresponding technical measures were proposed. This summary is helpful to promote the technology of safe and fast horizontal drilling in Western Sichuan Basin.


Western Sichuan; Xu-2 formation; Ultra-deep horizontal well; Drilling technology

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