Flow measurement technology is advancing at an ever-increasing rate. New engineering methods in the art of flow measurement are forcing a change for the better. Newer technologies often bring advances to the operational processes within many industries which can improve management and production. This article details the design and operation of a new genre of differential pressure (DP) cone meter.
Accurate measurement of liquids is important for all oil and gas industry production or consumption sites. This is especially true for bulk transfer devices where large volumes of products are being moved and must be monitored, including crude oil pipelines, depots, gasoline and jet fuel tank farms, refineries and even cruise line terminals.
For the benefit of those who are responsible for natural gas measurement, we’ll review some of the key developments in natural gas measurement technology over the past 20 years or so. We’ll also speculate on the advancements to expect in the years ahead.
Differential Pressure (DP) flow meters have been widely used since Herschel first developed the Venturi meter in the 1880s. The orifice plate meter, possibly the most popular flow meter ever, is a derivative of the Venturi meter. Weymouth introduced the orifice meter a century ago.
Natural gas is being produced from many varied and challenging locations around the world. Gas-prone reservoirs tend not to produce clean dry gas flows but rather wet natural gas flows where the gas is mixed with hydrocarbon liquids and water. Furthermore the wet natural gas production from each reservoir is unique. No two wet natural gas production flows are identical.
COLORADO SPRINGS, CO–Measurement may not be the most glamorous aspect of the natural gas business, but it sure is one of the most important from a dollars and cents perspective.
To date, limited testing has been done to determine the effects pulsation in the gas stream may have on the ultrasonic meter’s accuracy and performance. Some previous testing does show that there may be an impact on accuracy when the frequency of the pulsation is the same as — or a multiple of — the sampling frequency of the ultrasonic meter.
Until recently, flow measurements in pipeline sizes above 12-inch diameter were usually done with conventional measurement principles, mostly following Bernoulli’s pressure difference principle or mechanical devices that were moved by the media and the number of movements being counted.
Dave Thompson’s search for the best non-contact flow meter for really challenging liquids began at Freeport LNG’s natural gas storage facility on Oyster Creek on the Texas gulf shore.
There are several types of flow meters used to measure the flow profile of a fluid. They are; turbine flow meters, ultrasonic flow meters, magnetic flow meters, Coriolis flow meters and target flow meters.
The flow measurement performance of two commercially available ultrasonic flow meters has been evaluated under conditions in which there were various levels of contaminate-like coating applied to the inside wall of the pipe upstream of the meter.
Ultrasonic flow meters are among the most popular of the flow meter types. They are used for a wide range of applications, including natural gas and petroleum liquids custody transfer, check metering and flare gas measurement.