定向/复杂井

研究探讨钻杆连接过程中扭矩滞留造成的井下钻具组合损坏

本文对钻杆连接过程中扭矩捕获事故进行了研究，重点分析了相关因素和根本原因，并提出了预防和缓解这些瞬态事件的措施。

图 1'BHA 中一个子组件上的销连接断裂。
图 1'BHA 中一个子组件上的销连接断裂。
来源：SPE 223695。

本文研究了三个钻杆连接过程中扭矩释放导致井底钻具组合（BHA）损坏的案例。文章重点分析了扭矩释放事件的促成因素和根本原因，并提出了针对此类瞬态事件的预防和缓解措施。分析表明，没有一种通用的连接程序能够完美适用于所有应用。最终，超速事件的风险与……

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Directional/complex wells

Study Explores BHA Damage Caused by Trapped Torque During Drillpipe Connection

This paper presents a study of trapped-torque incidents during drillpipe connection, highlighting contributing factors and root causes and proposing prevention and mitigation measures for these transient events.

Fig. 1—Fractured pin connection on one of the subs in the BHA.
Fig. 1—Fractured pin connection on one of the subs in the BHA.
Source: SPE 223695.

This paper presents a study of three cases in which release of trapped torque occurs during drillpipe connection, leading to bottomhole-assembly (BHA) damage. It highlights the contributing factors and root causes of the trapped-torque-release events and proposes prevention and mitigation measures for these transient events. Analysis suggests that no single universal connection procedure works perfectly for all applications. Ultimately, the risk of the overspeed event vs.

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