Decommissioning and abandonment

Acronyms and Abbreviations

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FRSU FSM FSO FSU

Floating regasification and storage (unit for LNG) Field signature measurement (or method) Floating storage and offloading (facility)

Floating storage unit foot (1 ft = 0.3048 m)

ft

FTA

Flowline termination assembly Graben area export line US gallon (1 gal US ≈ 3.785 litre)

GAEL gal US

GBS

Gravity based structure

GCHPL GEBCO GFRP GIS GLU GoM GOR GPR GPS GMAW GPSS GRP GSPU GTAW

Grangemouth combined heat and power limited General bathymetric chart of the oceans

Glass-fibre reinforced plastic Geographic information system

Gas-lift umbilical

Gas metal arc welding

Gulf of Mexico Gas oil ratio

Ground penetrating radar Global positioning system Glass-reinforced plastic Glass syntactic polyurethane Gas tungsten arc welding General visual inspection

Government pipeline and storage system (UK)

GVI

Hydrogen

H 2 H 2 H 2

O S

Water

Hydrogen sulphide Health and safety

H&S HAL HAT HAZ

Hiden Analytical Limited Highest astronomic tide Heat-affected zone Hazard analysis Hazard identification

HAZAN HAZID HAZOP

Hazard and operating assessment Hydrogen chloride High collapse resistance Hydrant control valve Horizontal directional drilling High density polyethylene (PE-HD)

HCl HCR HCV HDD

HDPE

He

Helium

HEPC

Hose end pressure coupling High frequency induction High frequency welding Hydrogen-induced cracking

HFI

HFW HIC HICC HiPAP HIPPS

Hydrogen-induced corrosion cracking High precision acoustic positioning High integrity pressure protection system

HM

High modulus

HMPE

High modulus polyethylene (man-made fibre ropes)

HMWPE

High molecular weight polyethylene

HP

High pressure

HP/HT

High pressure/high temperature