This paper focuses on two key aspects of the flow assuranc plan for subsea gas developments, the strategies for managin hydrates and the wax deposition. Hydrate managemen strategy must focus on preventing blockages versus preventin hydrate formation. To this end the engineer must evaluat flow conditions, system geometry, and production profiles, i addition to temperature and pressure conditions. In particular a realistic water production profile during field life is neede to frame a workable hydrate management strategy. Whil continuous injection of thermodynamic inhibitor is th traditional solution, thermal management may be deploye effectively for certain fields, resulting in lower CAPEX an OPEX. Operability at restart must also be evaluated, focusin again on preventing blockage rather than preventing hydrat formation.
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