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The Success of Maintaining Discrepancy Values in Accordance with the Provisions between Static Measurements (Tank Gauging Manual) and Dynamic Measurements (metering system) in one of the oldest Terminals in Indonesia
Onnie Ridaliani (a), Jeffier Winarta (b)

(a) Trisakti University
(b) SKK Migas


Abstract

Lifting activities are the most end activities of the upstream industry, needed a good evaluation for doing those. There is 2 methods in terms of measuring volume; static measurements and dynamic measurements. Static measurement is a measurement of the tank gauging, which is the measurement of the height of oil or liquid in the tank (storage tank or receiver tank), the liquid that will measure in static condition, no changing physics form (temperature or volume) in a long period of time (approximately more than an hour). Dynamic measurement is a measurement of a metering system, which means to do measuring the flowrate (transformation of volume against time) of crude product. the liquid condition with relatively constant speed and pressure, while lifting on loading. commonly, dynamic measurements used flow meters, there are several types of flow meters; positive displacement, turbine, coriolis mass, ultrasonic and orifice. On this occasion, will discuss the two varieties of measurements that is mentioned above, and the differences results among the two method. This paper takes the case in one of the oldest terminals in Indonesia in the Sumatra region of Riau province. During this lifting activity, the difference in values always works in the range of 0 - 0.5%. Not always coming smooth, sometimes there are some lifting activities that have a considerable value difference in both methods more than 0.5%. for additional information, terminal use the flowmeter (Positive Displacement) with automatic and manual mode to generate the results It is expected from this paper, to be able to share experiences in the field in order to guarantee the accuracy of each type of measurement. Not just explain the success, but the failure will show up.

Keywords: Static Measurement, Dynamic Measurement, Positive Displacement, Discrepancy

Topic: Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/eJV3GCaMYu6H

Conference: The 2nd International Conference on Earth Science, Mineral, and Energy (ICEMINE 2019)

Plain Format | Corresponding Author (Jeffier Winarta)

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