ARRANGEMENTS FOR FLOW ASSURANCE IN A SUBSEA FLOWLINE SYSTEM

摘要

A subsea flowline system (1, 1', 200) for transport of hydrocarbon production fluid is shown, with a chemicals injection and pigging arrangement (100) that comprises a crosslink (101) which connects to the flowline system via first and second access points (102, 103) An isolated crosslink section (104) is defined between first and second pig launching valves (105, 106) installed on the crosslink (101), wherein the isolated crosslink section (104) is connected to a chemicals injection system via an isolation and injection valve (107).