New design method of unequal taper thread (UTT) pairs and its application in API NC38 thread improvement

API standard threads are the most commonly used thread configurations for drill pipe joints in the petroleum industry. Recently with the increasing application of horizontal wells and extended-reach wells in drilling engineering, drill pipe joint threads are subjected to complex loads, and drill pip...

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Autori principali:	Hangming Liu, Yangye He, Jifang Wan, Lin Chen, Xianzhong Yi, Song Hou, Yanbin Wang, Dongxu He, Gang Li
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	KeAi Communications Co., Ltd. 2023-09-01
Serie:	Petroleum
Soggetti:	Unequal taper thread pairs NC38 thread improvement Rotary shouldered connection thread Failure analysis Drill pipe joint
Accesso online:	http://www.sciencedirect.com/science/article/pii/S2405656123000238
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