Assemblies, systems and methods for installing multiple subsea functional lines

摘要

Disclosed are methods for installing at least two subsea functional lines having differing functions, such as a subsea umbilical and a subsea flowline, and integrated termination assemblies for use in the methods. The integrated termination assemblies combine terminations of the at least two subsea functional lines, simplifying the layout of a subsea production field, reducing the number of connections necessary and simplifying the installation of subsea functional lines used in offshore hydrocarbon production.

主权项

1. An integrated termination assembly comprising:
a. a rigid support structure comprising:
i. a first functional line termination structure; andii. a second functional line termination structure detachably and rigidly connected to the first functional line termination structure; b. at least one first functional line terminating at the first functional line termination structure of the rigid support structure; and c. at least one second functional line having a different function than the at least one first functional line terminating at the second functional line termination structure of the rigid support structure; wherein the at least one first functional line and the at least one second functional line are each selected from the group consisting of production flow lines, electrical cables, hydraulic fluid lines, chemical injection lines, fiber-optic cables, gas injection lines, water injection lines, pneumatic lines, and combinations thereof.