CABLE INSTALLATION TOOL AND METHOD FOR SUCH INSTALLATION

摘要

An installation tool arrangement enables installation of a flexible elongated element, such as a conductor, cable, tube or tube bundle, into a pipeline and to extend the flexible elongated element from the surface of the sea to the seabed by the use of a per se known pipeline pigging technique. The tool arrangement includes a first pipe junction tool at the pipeline entrance end for the flexible elongated element, and a second pipe junction tool at the pipeline exit end for the flexible elongated element. The installation tool arrangement includes a leading pig connected to the flexible elongated element to have it advanced through the pipeline toward the seabed by advancing said pig by means of the fluid flowing in the pipeline.

主权项

1. An installation tool arrangement to enable installation of a flexible elongated element into a pipeline and to extend said flexible elongated element from the surface of the sea to the seabed by the use of a per se known pipeline pigging technique, said installation tool arrangement comprising:
a first pipe junction tool at the pipeline entrance end for the flexible elongated element; and a second pipe junction tool at the pipeline exit end for the flexible elongated element, a leading pig connected to said flexible elongated element and arranged to enter said pipeline at said first pipe junction tool, said pig and trailing flexible elongated element entering said pipeline via a branch off pipe of said first pipe junction tool, said pig and flexible elongated element being prepared to be advanced through said pipeline toward the seabed by advancing said pig by means of the fluid flowing in the pipeline; and a shifting mechanism configured to shift said flexible elongated element to a connecting terminal for said flexible elongated element at the second pipe junction tool.