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Title: COMPARISON OF VERTICAL TANK CALIBRATION METHODS USING TOTAL STATIONS AND 3D SCANNER
Author: Gustavo Lopez, Jose Fuentes O., Henry Abril B.
Source: 2018 International Symposium on Fluid Flow Measurement
Year Published: 2018
Abstract: Measurements quality is relevant in commercialization and balance sheet processes in oil pipeline networks of oil companies. Many of these industries use vertical tanks for custody transfer of liquid hydrocarbon, in this regard, the current study presents the results of comparison between two methods of tanks calibration (volumetric capacity and their uncertainties): Optical method of calibration (most used in Ecuador) with total stations and new alternative method using 3D scanner with nominal capacity of 800,000 barrels. Second method gives an ease record of a data series (point cloud) than allows obtaining more information about tanks shape, geometry and its deformation. Also, an additional analysis is made on the contribution of uncertainty associated with the assumption that the tank is perfectly cylindrical for conventional methods. The final result seeks to provide technical support for the calibration alternative using a 3D scanner, to be accepted by the regulatory bodies of the South American countries

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