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Title: Field Experience With Turbine Meters
Author: William G. Birkhead
Source: 1974 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1974
Abstract: This paper will be related to the field use of turbine meters for not only sales but primarily with the purchase of gas. Ihe contents will delve into some of the operating problems for sales and purchase installations both on and offshore. Some recommendations for the manufacturing, testing and use of turbine meters will be discussed, In 1968 United Gas Pipe Lines Measurement Department was faced with the problem of measuring gas to a customer in East Texas with a very fast changing load. This was an attempt to measure gas from 10 up to 250 MSCFH at 150 psig. This load grew from a smaller load with a reasonable amount of variation to one of wide range abillty and fast reaction. This required the removal of an automatic dual tube orifice measuring station and the installation of a four large diaphragn positive metering station. The load still grew in size and suddenness of action to a point where the four diaphragm positive displacement meters were overloaded. On an average, one diaphragm per month was needed for repair even with the use of the recommended size flow restricting orifices. Rotary positive displacement meters were considered, but their range ability was not great enough. So a single 6 turbine meter was installed for evaluation in series with the abovementioned four diaphragm PD meters and four 2 critical flow orifice prover stacks. After s ix months of tests, the most variance was + 2% with an average of less than + 1%. The quality of gas was good, and the turbine meter was lubricated monthly, and spin-down times equalled or exceeded the manufactured minimum as removed. As a result of these evaluation tests, Uniteds nanagement approved and obtained the customers approval for the use of turbine meters.

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