Patent ID: 8123437
Filing Date: 2012-02-28
Classification: B63B,E21B,F16L

Abstract:
1. A method of installing a pipeline assembly in the form of a catenary riser having a substantial J-shape, the method comprising: a) laying a pipeline at least partly on a seabed by a pipeline laying vessel, the pipeline being substantially rigid, the pipeline comprising a curved section which curves upwardly from the seabed, the pipeline extending to a delivery end of the pipeline which is supported by the pipeline laying vessel; b) providing at least one anchoring device at the seabed; c) connecting the pipeline at a coupling point to the at least one anchoring device by at least one elongate connecting organ after the anchoring device is provided at the seabed, by performing either step c1) or c2), step c1) comprising: step c2) comprising: wherein the elongate connecting organ is configured for substantially limiting an upward movement of the coupling point, d) positioning the delivery end at a delivery end target position; e) supporting the delivery end by a support device, and f) disconnecting the pipeline from the pipeline laying vessel.