Patent ID: 8141218

Claim:
A method for manufacturing a double walled pipeline comprising: providing a pipeline section including an inner tubular member and an outer tubular member; providing a coupling member, wherein the coupling member comprises: a support member; an outer coupling tube extending from the support member; and an inner coupling tube extending from the support member and positioned within the outer coupling tube; and controlling stress distribution in the inner tubular member and the outer tubular member, wherein the controlling comprises: axially translating a distal end of the inner tubular member a predetermined distance along a first direction relative to the outer tubular member; removing a predetermined portion of the inner tubular member; coupling the inner coupling tube directly to the inner tubular member; axially translating the distal end of the inner tubular member along a second direction relative to the outer tubular member, the second direction opposite the first direction; and coupling the outer coupling tube directly to the outer tubular member.