FREMGANGSM}TE VED FEILS¦KING OG KONTROLL AV R¦RLEDNINGER UNDER VANN, OG DETEKTERINGSINNRETNING FOR FEILS¦KING OG KONTROLL AV EN R¦RLEDNING UNDER VANN

摘要

Methods and apparatus for conducting evaluations of offshore pipe-line laying operations and characterized by the performance of inspection operations, in relation to submerged pipeline means, prior to the termination of a pipeline laying operation. The inspection operation is performed while a floating vessel means, effecting the pipeline laying operation, remains operable to lay and/or retrieve pipeline increment means containing a defect detected during the inspection operation.