Alderley

Technical excellence: delivered

Application NotesLNG Metering

Project Name:Jetty Boil Off Gas Recovery Project

Location:Ras Laffan Industrial City, Qatar

EPC Contractor/Consultants:Fluor Transworld Services, Inc

End User:Qatargas Operating Company Ltd

Scope of ApplicationThe scope of supply includes 4 boil off gas metering systems, consisting of 1 off 2 x 100% 10” ultrasonic meter streams, 2 off 2 x 100% 8” ultrasonic meter streams and 1 off 2 x 100% 6” ultrasonic meter streams. A flow computing system and control system were also supplied.

Qatar

Alderley

www.alderley.com

Rev. 10.01.17

Applicable Standards

AGA 5: Fuel Gas Energy Metering

AGA 8: Super Compressibility Calculation of Natural Gas and Other Related Hydrocarbon Gases

AGA 9: Measurement of Gas by Multipath Ultrasonic Meters

API MPMS Chp. 14: Natural Gas Fluids Measurement

ISO 5168: Measurement of fluid flow - Estimation of uncertainty of a flow-rate measurement

• 8” NB 600# ultrasonic flow meters

• 8” NB 600# RF double block and bleed electrically actuated ball valve with limit switches

• 8” NB 600# RF gear operated ball valves with limit switches

• Start up strainer with DPT

• Pressure and temperature indicators

• Smart type pressure transmitters

• Temperature transmitters, c/w 4 wire PRT

• 1½” 900# x 2” 150# RF thermal relief valves

• Flow computing system, includes flow computers and control system

Main Equipment