Patent ID: 11872607
Assignee: PARADIGM FLOW SERVICES LIMITED
Field: Civil engineering (Other fields)
Classification: CPC B  E | IPC B  E

Claim 9:
10. An apparatus for cleaning a fluid conduit in a hydrocarbon production installation, the apparatus comprising:
a flexible hose comprising a bore and at least one outlet, the flexible hose having an inner diameter in the range of 5 mm to 60 mm and a minimum elastic bending radius of less than 100 times the inner diameter of the flexible hose;
a pressure control device;
a coupling for an opening of a fluid conduit system;
a feeding module for engaging the flexible hose and imparting a pushing and/or pulling force on the flexible hose to introduce it through the pressure control device and into or out of the fluid conduit system, wherein the feeding module comprises a drive mechanism, wherein the drive mechanism is configured to engage with an outer surface of the flexible hose by forming indentations in the outer surface of the flexible hose, wherein the drive mechanism comprises at least one chain and one or more chain blocks, and wherein the one or more chain blocks comprises a concave surface which is part-circular in profile; and
a pump configured to pump a cleaning fluid into the bore of the flexible hose and expel the cleaning fluid into the conduit through the at least one outlet in the flexible hose.