A skid-mounted chemical and hydrate remediation system including a subsea separator is described for use in the event of a hydrate plug with chemical injection. This system comprises a manifold which communicates between a subsea pipeline and a plurality of pumps located within a frame. This plurality of pumps comprises at least two pumps powered by ROV hydraulics which operate in series to extract fluid from the pipeline, and at least one chemical injection pump which communicates hydrate solvent through the manifold back into the pipeline. The system additionally comprises a coiled liquid/gas separator which separates the extracted fluid into liquid and gas components and returns them to the surface separately.
Subsea skid for chemical injection and hydrate remediation
2021-10-12
Patent
Electronic Resource
English
Chemical Injection Skid of Offshore and Installation Method Thereof
European Patent Office | 2016