公开(公告)号：WO2017006262A1

公开(公告)日：2017-01-12

申请号：PCT/IB2016/054051

申请日：2016-07-06

Applicant: PEGASUS S.R.L.

Inventor： ALARIA, Alberto ,  CANAVERA, Angelo

IPC: E21B17/042

CPC classification number: E21B17/042 ,  F16L15/00 ,  F16L15/001 ,  F16L2201/40

Abstract: A process for treating a pin having an external threaded portion (12) and a box (20) having an internal threaded portion (22) wherein the process provides a threadable joint having a high galling resistance. One embodiment of the present invention includes applying a lubricant on the threaded portion of at least one of the pin (10) and box (20). The threadable joint is made up by threadably engaging the threaded portions of the pin and box to a recommended torque according to the American Petroleum Institute and then breaking out the threaded joint. The making up and breaking out step with lubricant applied on the threaded portion of at least one of the pin and box is performed a plurality of times. One of the threaded portions of the pin and box is then case hardened. The threadable joint made from this process is highly resistant to galling without the requirement of any lubricant.

Abstract translation: 一种用于处理具有外螺纹部分（12）和具有内螺纹部分（22）的箱（20）的销的方法，其中该方法提供具有高耐磨性的螺纹接头。 本发明的一个实施例包括在销（10）和盒（20）中的至少一个的螺纹部分上施加润滑剂。 可螺纹接头由根据美国石油学会美国石油协会的推荐扭矩与销和箱的螺纹部分螺纹接合，然后断开螺纹接头构成。 执行多次施加在至少一个销和箱的螺纹部分上的润滑剂的组装和拆卸步骤。 然后将销和盒的一个螺纹部分进行表面硬化。 由该方法制成的可螺纹接头高度耐磨损，不需要任何润滑剂。

公开(公告)号：EP3320172B1

公开(公告)日：2020-01-01

申请号：EP16751345.6

申请日：2016-07-06

Applicant: Pegasus S.r.l.

Inventor： ALARIA, Alberto ,  CANAVERA, Angelo

IPC: E21B17/042

公开(公告)号：EP3320172A1

公开(公告)日：2018-05-16

申请号：EP16751345.6

申请日：2016-07-06

Applicant: Pegasus S.r.l.

Inventor： ALARIA, Alberto ,  CANAVERA, Angelo

IPC: E21B17/042

Abstract: A process for treating a pin having an external threaded portion and a box having an internal threaded portion wherein the process provides a threadable joint having a high galling resistance. One embodiment of the present invention includes applying a lubricant on the threaded portion of at least one of the pin and box. The threadable joint is made up by threadably engaging the threaded portions of the pin and box to a recommended torque according to the American Petroleum Institute and then breaking out the threaded joint. The making up and breaking out step with lubricant applied on the threaded portion of at least one of the pin and box is performed a plurality of times. One of the threaded portions of the pin and box is then case hardened. The threadable joint made from this process is highly resistant to galling without the requirement of any lubricant.