公开(公告)号：US20150361728A1

公开(公告)日：2015-12-17

申请号：US14740877

申请日：2015-06-16

Applicant: Vetco Gray Inc.

Inventor： Jianqiang Chen ,  Chad Eric Yates

IPC: E21B17/00 ,  B21D35/00 ,  F16L15/00 ,  E21B17/042 ,  F16L9/02 ,  B21D22/16 ,  E21B17/04

CPC classification number: F16L15/00 ,  B21D22/16 ,  B21D35/002 ,  E21B17/042 ,  F16L9/02 ,  F16L2201/40

Abstract: A method for forming an elongated tubular member for use with hydrocarbon production includes forming a blank member of a steel material having an outer diameter equal to a first outer diameter. The blank member is mounted on a rotating mandrel. A tubular member is formed by engaging a rotary disk with an outer surface of the blank member and moving the rotary disk in a first axial direction, lengthening the blank member in a second axial direction and reducing the outer diameter of the blank member until the outer diameter of a central portion of the blank member is equal to a second outer diameter and the outer diameter of end portions of the blank member is equal to a third outer diameter. The tubular member is heat treated to reduce a residual stress. A mechanical connection is formed in each of the end portions.

Abstract translation: 用于形成用于烃生产的细长管状构件的方法包括形成具有等于第一外径的外径的钢材的坯料。 坯件安装在旋转的心轴上。 通过使旋转盘与坯料的外表面接合并且沿第一轴向方向移动旋转盘而形成管状构件，使空白构件在第二轴向方向上延长并且减小坯件的外径直到外部 坯件的中心部的直径等于第二外径，坯件的端部的外径等于第三外径。 管状构件被热处理以减少残余应力。 在每个端部形成机械连接。