Sampling skid for subsea wells
View Patent ↗A system for sampling production well production fluids from a manifold interface panel on a subsea production manifold. In some embodiments, the system includes a remotely operated vehicle, a skid coupled to the remotely operated vehicle, a sample tank supported on the skid, and a fluid transfer pump operable to convey production fluid from at least one of the production wells through the manifold interface panel into the sample tank.
1. A method of removing a hydrate blockage from a flow line in communication between a production well and a subsea production manifold comprising a manifold interface panel, the method comprising:
deploying a sample skid to the subsea production manifold and coupling the sample skid to the manifold interface panel;
extracting production fluid from behind a hydrate blockage formed in the flow line with respect to the manifold interface panel and to the sample skid.
2. The method of claim 1 , further comprising reducing pressure in the flow line between hydrate blockage and the manifold.
3. The method of claim 1 , further comprising conveying the extracted production fluid to a sample tank on the skid.
4. The method of claim 1 , further comprising dissolving the hydrate block by injecting methanol from a methanol supply tank supported on the skid through the manifold interface panel into the flow line behind the hydrate blockage.
5. The method of claim 1 , further comprising dissolving the hydrate block by injecting a hydrate dissolving fluid from a supply tank on the skid through the manifold interface panel into the flow line behind the hydrate blockage.