Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Field Testing With The Critical Flow Prover
Author: V. E. Epps
Source: 1976 International School of Hydrocarbon Measurement
Year Published: 1976
Abstract: The critical flow prover can be used to st a displacement meter when the flowing presre is 15 psig, or above. The equipment needed to critical flow test large capacity displacement meter is described follows: When it is necessary to estimate the volume of gas bypassed during the test, the rate of flow through the meter should be determined before and after the test. The average of the two rates should be used as the amount of gas bypassed. The volume of gas used testing should also be accounted for. Prover - Essentially a portable orifice :ter tube. It is usually a short piece of 2 .ameter extra heavy seamless steel tubing, ireaded on each end. The tubing may have a .anged or a union joint orifice-plate holder mnected to the outlet end. It includes a pro- .sion for a thermometer well to be installed lto the center of the flow of gas upstream of le critical flow orifice-plate holder. Orifices - An assortment of calibrated ritical-flow orifice plates are required. Each Late is stamped with standard air time on the ltlet side. (The standard air time is the time 1 seconds required for the passage of one cubic )ot of air at 60 F. through the orifice. It not practical to calculate this time and it 3 always determined by test.)

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.