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Improve Gas Wellhead Flow Measurement Accuracy with High Performance Multivariable Technology

 While plunger lift systems solve the problem of resuming the flow of gas in mature wells, they also create another set of challenges of their own. With every plunger cycle, the system subjects flow meters to large pressure spikes with wide flow rate variations. As the plunger cycle repeats itself, it makes it difficult for conventional transmitters to accurately measure the flow of gas.

In fact, in tests of plunger lift wells across North America, it was shown that approximately 1-3% of the produced gas volume went unmeasured due to DP spikes over the upper range of the transmitter.

 One solution to this challenge is the Rosemount 4088 MultiVariable Transmitter. With extended range capabilities, this device has the accuracy of a standard 250 inch sensor, but can also measure DP spikes up to 800 inches. This ensures the entire gas flow cycle is accurately captured. By measuring both flow spikes and the nominal flow, the Rosemount 4088 can account for up to an estimated additional $60,000 of gas volume per year on a typical plunger lift well. 

Further benefits of the Rosemount 4088 MultiVariable Transmitter include:

  • Covers all applications with a single range optimized for flow
  • Integrates with any flow computer
  • Simplifies commissioning, verification, and calibration with easy-to-use transmitter interface software
  • Available in fully assembled flow meter solutions for streamlined startup

To learn more about how to maximize wellhead measurement performance, watch the video below or download the white paper “Peaks and Valleys: Solving Gas Wellhead Flow Measurement Problems Induced by Plunger Lift Systems.”