公开(公告)号：US20050246883A1

公开(公告)日：2005-11-10

申请号：US10523747

申请日：2003-08-01

申请人： Vincent Alliot ,  Jean Hoss

发明人： Vincent Alliot ,  Jean Hoss

IPC分类号： F16L13/02 ,  B23P11/00 ,  B21D39/00

CPC分类号： F16L13/0263 ,  F16L58/181 ,  Y10T29/49909 ,  Y10T29/49911 ,  Y10T29/4994 ,  Y10T29/53065

摘要： There are disclosed methods of and apparatus for interconnecting lined metal pipes (110, 120), applying in particular to the offshore oil and gas industry. Corrosion is a common problem in the industry. Lining pipes overcomes the problem, but welding sections of pipe together can be a complicated and time-consuming task, requiring dedicated and sophisticated tooling. More desirable is the ability to use conventional pipe-laying equipment (20, 40, 50, 60, 70, 80, 90) with little additional tooling. As such, there are disclosed methods and apparatus compatible with known offshore connection methods, particularly where the spacing of joints on the pipe is less than 100 m. The chosen technique will not significantly impact the laying rate of the lined pipe, compared with unlined pipe. The method includes connecting lined pipes (110, 120) using a corrosion-resistant bridging member (102) internally overlapping both linings, leaving a void space (146) behind the weld region (109) while at least the initial stages of welding (180) are performed, and expanding (170) the bridging member to provide a seal against the liners, in a controlled sequence. There is also disclosed a bridging member (102), tooling (170) and pipelay apparatus suitable for use with this method.

摘要翻译： 公开了用于互连衬里金属管（110,120）的方法和装置，特别是应用于海上石油和天然气工业。 腐蚀是行业中的常见问题。 衬管克服了这个问题，但将管道焊接在一起可能是一个复杂而耗时的任务，需要专门的和复杂的工具。 更可取的是能够使用传统的铺管设备（20,40,50,60,70,80,90），只需少量额外的工具。 因此，公开了与已知的海上连接方法兼容的方法和装置，特别是在管道上的接头的间距小于100μm的情况下。 与无衬管相比，所选择的技术不会显着影响衬管的铺设率。 该方法包括使用内部重叠两个衬里的耐腐蚀桥接构件（102,110）连接内衬管道（110,120），在焊接区域（109）的后面留下空隙空间（146），而至少初始焊接阶段（180 ），并且以受控的顺序扩展（170）桥接构件以提供对衬垫的密封。 还公开了适用于该方法的桥接构件（102），工具（170）和管道铺设装置。