公开(公告)号：US5191911A

公开(公告)日：1993-03-09

申请号：US825838

申请日：1992-01-28

申请人： Jon D. Dubois

发明人： Jon D. Dubois

IPC分类号： B21C37/08 ,  B21C37/083 ,  B23K31/02

CPC分类号： B23K31/027 ,  B21C37/08 ,  B21C37/0826 ,  B21C37/083 ,  Y10T137/6929

摘要： A system for making a long length of seam-welded tubing from shorter lengths of flat metal strip which are spliced end-to-end and formed into tubular form and seam-welded. Adjoining ends of two successive lengths of the strip are trimmed at supplementary angles, one of which is an acute angle. The trimmed ends are abutted and welded, preferably with weldment extending beyond each such end. All surfaces of the weld are finished to match the dimensions of the strip. The tubing, along with the welded joints, is heat treated as the tubing is formed to produce a product substantially free of internal surface roughness along the splice welds.

摘要翻译： 一种用于从较短长度的扁平金属条制造长度长的缝焊管道的系统，它们端对端地接合并形成管形并且被缝焊。 带的两个连续长度的相邻端部以辅助角度修剪，其中一个是锐角。 修剪的端部被邻接和焊接，优选地具有延伸超过每个这样的端部的焊件。 焊缝的所有表面都完成，以匹配条带的尺寸。 管道与焊接接头一起被热​​处理，因为管道被形成以产生沿着接合焊缝基本上没有内表面粗糙度的产品。

公开(公告)号：US4863091A

公开(公告)日：1989-09-05

申请号：US29171

申请日：1987-03-18

申请人： Jon D. Dubois

发明人： Jon D. Dubois

IPC分类号： B21C37/08 ,  B21C37/083 ,  B23K31/02

CPC分类号： B23K31/027 ,  B21C37/08 ,  B21C37/0826 ,  B21C37/083 ,  Y10T29/5185

摘要： A system for making a long length of seam-welded tubing from shorter lengths of flat metal strip which are spliced end-to-end and formed into tubular form and seam-welded. Adjoining ends of two successive lengths of the strip are trimmed at supplementary angles, one of which is an acute angle. The trimmed ends are abutted and welded, preferably with weldment extending beyond each such end. All surfaces of the weld are finished to match the dimensions of the strip. The tubing, along with the welded joints, is heat treated as the tubing is formed to produce a product substantially free of internal surface roughness along the splice welds.

摘要翻译： 一种用于从较短长度的扁平金属条制造长度长的缝焊管道的系统，它们端对端地接合并形成管形并且被缝焊。 带的两个连续长度的相邻端部以辅助角度修剪，其中一个是锐角。 修剪的端部被邻接和焊接，优选地具有延伸超过每个这样的端部的焊件。 焊缝的所有表面都完成，以匹配条带的尺寸。 管道与焊接接头一起被热​​处理，因为管道被形成以产生沿着接合焊缝基本上没有内表面粗糙度的产品。

公开(公告)号：US4629218A

公开(公告)日：1986-12-16

申请号：US695953

申请日：1985-01-29

申请人： Jon D. Dubois

发明人： Jon D. Dubois

IPC分类号： E21B17/00 ,  E21B17/20 ,  F16L55/00

CPC分类号： E21B17/20 ,  E21B17/00

摘要： A coil tubing string for injecting fluids into a well includes one or more tapered wall tubing sections welded in series with adjacent straight wall tubing sections to form smooth joints therebetween. The tubing string has tubing sections of dissimilar wall thicknesses. Such tapered wall tubing sections are used to connect tubing sections of dissimilar wall thicknesses wherein the transitions from one tubing section to another is smooth and continuous as one progresses from a thin wall tubing section to a heavy wall tubing section in an ascending order.

摘要翻译： 用于将流体注入井的线圈管柱包括与相邻的直壁管段串联焊接的一个或多个锥形壁管段，以在它们之间形成平滑的接头。 油管柱具有不同壁厚的管段。 这种锥形壁管段用于连接不同壁厚的管段，其中从一个管段到另一个管段的过渡是平滑且连续的，因为一个从薄壁管段到重壁管段按升序排列。