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Title: Research yields precise uncertainty equations

Journal Article · · Oil Gas J.; (United States)
OSTI ID:6207692

Results of a study of orifice-meter accuracy by Chevron Oil Field Research Co. at its Venice, La., calibration facility have important implications for natural gas custody-transfer measurement. The calibration facility, data collection, and equipment calibration were described elsewhere. This article explains the derivation of uncertainty factors and details the study's findings. The results were based on calibration of two 16-in. orifice-meter runs. The experimental data cover a beta-ratio range of from 0.27 to 0.71 and a Reynolds number range of from 4,000,000 to 35,000,000. Discharge coefficients were determined by comparing the orifice flow to the flow from critical-flow nozzles.

Research Organization:
Chevron Oil Field Research Co., Lahabra, CA
OSTI ID:
6207692
Journal Information:
Oil Gas J.; (United States), Vol. 85:31
Country of Publication:
United States
Language:
English

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