公开(公告)号：WO1996029532A1

公开(公告)日：1996-09-26

申请号：PCT/NO1996000058

申请日：1996-03-14

Applicant: KONGSBERG OFFSHORE A.S ,  SNAMPROGETTI S.P.A. ,  GJESSING, Harald, Ottar ,  HAUGEN, Finn, Germand ,  RADICIONI, Alessandro ,  CORBETTA, Giovanni ,  D'ALOISIO, Guido

Inventor： KONGSBERG OFFSHORE A.S ,  SNAMPROGETTI S.P.A.

IPC: F16L01/16

CPC classification number: F16L1/26 ,  E21B41/04

Abstract: Method for connecting underwater pipelines characterised by the following steps: installation of a pipeline (7) on a seabed fixed frame (2); laying of an outboard pipeline (10) by a lay barge; installation of a subsea winch (28) within the frame; actuation of the winch by a ROV (26A) to unwind the cable (33) of the winch, aided by a second ROV (26B) bringing and connecting the end of the cable to the outboard pipeline; winding of the cable and following deflection of the outboard pipeline up to the frame; installation of a metrology system (38) to define the distance and angular misalignment between the two pipelines ends to be connected; assembly of a connection system (50) with telescopic capabilities using the measurements of the metrology system and using a dedicated frame installed on board the support ship; installation of the connection system on the seabed fixed frame and connection of the connection system with the pipelines ends.

Abstract translation: 连接水下管线的方法，其特征在于以下步骤：在海底固定架（2）上安装管道（7）; 用趸船铺设舷外管道（10）; 在框架内安装海底绞盘（28）; 由第二ROV（26B）辅助由ROV（26A）驱动绞盘以解开绞盘的缆线（33），将第二ROV（26B）连接到外侧管道; 缠绕电缆，并将舷外管道偏转到框架; 安装计量系统（38）来定义要连接的两个管道端之间的距离和角度偏移; 使用测量系统的测量并使用安装在支撑船上的专用框架来组装具有伸缩能力的连接系统（50）; 连接系统安装在海床固定架上，连接系统与管道端连接。