Offshore gas conservation utilizing a turbo-expander based refrigeration extraction cycle

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5870425

Ross, I; Robinson, T

Gas associated with the crude produced from Occidental's Piper Field is conserved by drying it and condensing out the heavier components. This renders the gas with water and hydrocarbon dew points acceptable for transfer to St. Fergus via Total's Frigg Field Pipeline. A process which includes a turbo expander/compressor is used to extract the condensate which is spiked into the crude pipeline for eventual recovery as liquid product and fuel gas at Flotta. The turbo expander can extract 30% more condensate than a simple Joule-Thompson expansion. Gas transferred to St. Fergus is 80% methane with a net calorific value of 1000 btu/scf and a water dew point of -20 F at 1700 psig.

• OSTI ID: 5870425
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE-10391; ISSN SEAPA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
ALKANES
CALORIFIC VALUE
COMBUSTION PROPERTIES
COOLING
DRYING
ENERGY CONSERVATION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
JOULE-THOMSON EFFECT
METHANE
NATURAL GAS
OFFSHORE OPERATIONS
ORGANIC COMPOUNDS
PETROLEUM
PIPELINES
PROCESSING
REFRIGERATION
SEPARATION PROCESSES