Subsea sampling system and method

A system for collecting fluid samples from a fluid flowline, comprising:

• a multiphase sampling apparatus attachable to a subsea fluid flowline so as to be in communication with a multiphase fluid flow in the flowline, and including a flow conditioner and sampling connection that selectively communicates with the fluid flow for selective collection of a fluid sample;
• and
• a vehicle sampling apparatus connectable to the multiphase sampling apparatus and including a fluid connector capable of transferring the fluid sample between the multiphase sampling apparatus and the vehicle sampling apparatus;
• a fluid sample collector adapted to contain the fluid sample for a selected period of time;
• a fluid pump in communication with the fluid connector;
• and at least one fluid analysis sensor operable from a location remote from the multiphase sampling apparatus.

A method for collecting fluid samples from a subsea structure, the method comprising:

• permanently or semi-permanently attaching a subsea sampler device to a subsea structure;
• capturing a multiphase sample from the subsea structure with the subsea sampler device;
• separating water, gas and/or oil into substantially monophasic samples from the multiphase sample by an enrichment system of a remotely operated vehicle (ROV) sampling skid assembly;
• and
• storing the separated samples on the ROV skid.