Design of Key Parameters of Extended Drillpipe

Extended drillpipe is an important drilling tool that uses very few collars. When applied to complex wells （e.g. deep wells and long horizontal wells）， it can effectively reduce operational risks that are possibly induced by failure incidents at connections， thereby lowering operational costs， and i...

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Bibliographic Details

Published in:	DOAJ (DOAJ: Directory of Open Access Journals)
Main Author:	Xu Zhaohui
Other Authors:	CHANG Junyi, Gao Yuan, Jinchao Fan, Liao MaoLin
Format:	Article
Language:	Chinese
Published:	2026
Subjects:	Drilling and Well Engineering Offshore Engineering and Technologies Advanced machining processes and optimization dogleg severity steel grades drill string dynamics deep wells extended reach horizontal wells
Online Access:	https://doaj.org/article/b2c430a1de9541f997eed4b40ab5da1a
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