METHOD AND SYSTEM FOR INHIBITING FREEZING OF LOW SALINITY WATER IN A SUBSEA LOW SALINITY WATER INJECTION FLOWLINE

A method for inhibiting freezing of low salinity water (H2O) in a subsea low salinity water injection flowline comprises providing the flowline with a pressure control system, which may include a high pressure pump and a pair of pressure shut in valves, which maintains an elevated fluid pressure wit...

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Bibliographic Details
Main Authors LOOIJER, MARK THEODOOR, ARKESTEIJN, ROALD
Format Patent
LanguageEnglish
French
German
Published 09.11.2016
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A method for inhibiting freezing of low salinity water (H2O) in a subsea low salinity water injection flowline comprises providing the flowline with a pressure control system, which may include a high pressure pump and a pair of pressure shut in valves, which maintains an elevated fluid pressure within the flowline throughout low salinity water injection operations and shut in periods, during which periods the flowline remains filled with pressurized non frozen low salinity water (H2O) that may have a temperature of about −2 degrees Celsius.
Bibliography:Application Number: EP20140824328