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1. (WO2018037084) HIGH-INTEGRITY PRESSURE PROTECTION SYSTEM

Pub. No.:    WO/2018/037084    International Application No.:    PCT/EP2017/071345
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Fri Aug 25 01:59:59 CEST 2017
IPC: E21B 33/035
E21B 41/00
E21B 43/01
Applicants: FMC KONGSBERG SUBSEA AS
Inventors: CAVALCANTI DE CASTRO, Marcel
FINNERUD, Wenche
WILSON, Andrew Stephen Edward
Title: HIGH-INTEGRITY PRESSURE PROTECTION SYSTEM
Abstract:
A subsea hydrocarbon fluid production system (101, 102, 103) comprising a seabed-founded structure (1), a X-mas tree (2) supported by the seabed-founded structure comprising a production master valve (5), a production wing valve (6) and a flowline connection interface (9) arranged in a flow path of a hydrocarbon production fluid, and a high-integrity pressure protection system comprising a pair of high-integrity pressure protection barrier valves arranged to protect a flowline connected to the flowline connection interface for transporting the production fluid from the X-mas tree. The high-integrity pressure protection system comprises a high-integrity pressure protection module (14) which is supported by the seabed-founded structure and comprises a least one high-integrity pressure protection barrier valve (15, 16) positioned in the flow path of the production fluid between the production wing valve and the flowline connection interface.