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US 11,988,303 B2Granted
Pipeline assembly and method of installation
AssigneePetroliam Nasional Berhad (Petronas)
InventorsI Wayan Eka Putra, Mohd Fauzi Bin Badaruddin
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Abstract
A method and a system for installing a non-metallic pipeline assembly, the method comprising the steps of: forming a pipe assembly by coupling a load bearing member and counter weight to a non-metallic pipe; floating the pipe assembly proximate to the water surface until in position, then; permitting the pipe assembly to sink to the sea bed.
Claims7
A method for installing a non-metallic pipeline, the method comprising the steps of:
- placing a reel of the non-metallic pipeline onto a drive system for the reel;
- fitting a load bearing member and counter weight to a rail having a guide and rollers;
- coupling the load bearing member and the counter weight from the rail to the non-metallic pipeline,
- the load bearing member and the counter weight being the same element, and said element being a chain;
- said chain and pipeline coupled at a plurality of spacings along a length of said pipeline so as to form a pipeline chain assembly;
- said chain bearing a tensile load and supporting a tensile stress during installation;
- floating the pipeline chain assembly proximate to the water surface until in an appropriate position, then;
- and
- permitting the pipeline chain assembly to sink to the sea bed;
- said non-metallic pipeline having a buoyancy;
- and
- said chain having a weight overcoming the buoyancy of the non-metallic pipeline.
9 more elements
A system and non-metallic pipeline assembly arranged to be installed offshore, comprising:
- a drive system for a reel of non-metallic pipeline;
- a rail having a guide and rollers, wherein the rail is fitted to a load bearing member and a counter weight to couple the load bearing member and the counter weight to the non-metallic pipeline from the reel;
- a pipeline having the load bearing member and the counter weight coupled along a length of said pipeline,
- the load bearing member and the counter weight being the same element,
- said element being a chain coupled along the length of the pipeline at a plurality of spacings so as to form the pipeline assembly,
- wherein said chain is coupled to the pipeline in a manner to bear a tensile load applied and support a tensile stress during installation as the pipeline assembly is pulled through water into position;
- said non-metallic pipeline having a buoyancy;
- and
- said chain having a weight overcoming the buoyancy of the non-metallic pipeline.
6 more elements
Dependencies are inferred from the claim text.