METHOD OF JOINING TWO PORTIONS OF AN UNDERWATER PIPELINE FOR CONDUCTING FLUIDS AND/OR GAS

摘要

A method of joining two portions of an underwater pipeline for conducting fluid and/or gas on the bed of a body of water, the method including the steps of : joining a telescopic sleeve (39), having a first coupling head (40), to a first end (35) of a first pipeline portion (31) above the body of water (3); positioning the first end (35), the telescopic sleeve (39), and the first coupling head (40) in a first given position on the bed of the body of water (3); joining a second coupling head (42) to a second end (36) of a. second pipeline portion (32) above the body of water (3); positioning the second end (36) and the second coupling head (42) in a second given position, close to the first coupling head (40), on the bed of the body of water (3); and connecting the first and second coupling head (40, 42) hermetically below the body of water (3).