Apparatus and method for direct tie-in of subsea pipelines
AssigneeEquinor Energy AS
InventorsGeir ENDAL, Per R. NYSTRØM
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Abstract
A method of installing a subsea pipeline having a direct tie-in to a subsea structure includes landing an end of a pipeline onto a pipeline landing frame, the pipeline landing frame being on a surface of a subsea structure, the pipeline landing frame providing a location for landing the end of the pipeline before connection to a connection point of the subsea structure; subsequently lowering the pipeline end; and connecting the pipeline end to a connection point of the subsea structure. A pipeline landing frame for implementing the method is also described.
Claims15
A method of installing a subsea pipeline having a direct tie-in to a subsea structure comprising:
- landing an end of a pipeline onto a pipeline landing frame, the pipeline landing frame being on a surface of a subsea structure, the pipeline landing frame providing a location for landing the end of the pipeline before connection to a connection point of the subsea structure;
- subsequently lowering the pipeline end;
- and
- connecting the pipeline end to a connection point of the subsea structure.
A pipeline landing frame configured to be fitted to a surface of a subsea structure and providing a location for landing an end of a pipeline before connection to a connection point of the subsea structure.
A subsea structure comprising a pipeline landing frame integral with the subsea structure and providing a location for landing an end of a pipeline before connection to a connection point of the subsea structure.
Dependencies are inferred from the claim text.