Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods
Brazilian regulation requires the test methods for analysing the shrinkage factor, and the solubility ratio in crude oils must be estimated under the measurement conditions for appropriation. Since these physicochemical parameters depend upon the density, a Brazilian oil company proposed an adapted...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Metrology |
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| Online Access: | https://www.mdpi.com/2673-8244/3/2/8 |
| _version_ | 1797593505892139008 |
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| author | Eugênio Benevides dos Santos Elcio Cruz de Oliveira |
| author_facet | Eugênio Benevides dos Santos Elcio Cruz de Oliveira |
| author_sort | Eugênio Benevides dos Santos |
| collection | DOAJ |
| description | Brazilian regulation requires the test methods for analysing the shrinkage factor, and the solubility ratio in crude oils must be estimated under the measurement conditions for appropriation. Since these physicochemical parameters depend upon the density, a Brazilian oil company proposed an adapted and more user-friendly methodology for adjusting the digital density meter under high pressure and temperature conditions. This study aimed to evaluate the metrological compatibility of this proposal by comparing it with the fit model presented by a manufacturer of a digital densimeter and with the tabulated reference values of fluid density. Since the density data behaviour presented non-normal distributions, the Wilcoxon signed-rank test showed metrological compatibility between the approaches studied in the pressure range from 0 psi to 1200 psi (8.273709 MPa) and the temperature range from 5 °C to 70 °C. |
| first_indexed | 2024-03-11T02:09:06Z |
| format | Article |
| id | doaj.art-4999bf5f9b3e4bdb9d57cc846ef55041 |
| institution | Directory Open Access Journal |
| issn | 2673-8244 |
| language | English |
| last_indexed | 2024-03-11T02:09:06Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metrology |
| spelling | doaj.art-4999bf5f9b3e4bdb9d57cc846ef550412023-11-18T11:37:40ZengMDPI AGMetrology2673-82442023-04-013213113810.3390/metrology3020008Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment MethodsEugênio Benevides dos Santos0Elcio Cruz de Oliveira1Exploration & Production (UN-BC/SE/LFCEN), PETROBRAS S.A., Macaé 27913-350, BrazilPostgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro 22451-900, BrazilBrazilian regulation requires the test methods for analysing the shrinkage factor, and the solubility ratio in crude oils must be estimated under the measurement conditions for appropriation. Since these physicochemical parameters depend upon the density, a Brazilian oil company proposed an adapted and more user-friendly methodology for adjusting the digital density meter under high pressure and temperature conditions. This study aimed to evaluate the metrological compatibility of this proposal by comparing it with the fit model presented by a manufacturer of a digital densimeter and with the tabulated reference values of fluid density. Since the density data behaviour presented non-normal distributions, the Wilcoxon signed-rank test showed metrological compatibility between the approaches studied in the pressure range from 0 psi to 1200 psi (8.273709 MPa) and the temperature range from 5 °C to 70 °C.https://www.mdpi.com/2673-8244/3/2/8digital density meter adjustmenthigh temperatures and pressuresnon-parametric testWilcoxon signed-rank testcrude oilsAnton Paar |
| spellingShingle | Eugênio Benevides dos Santos Elcio Cruz de Oliveira Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods Metrology digital density meter adjustment high temperatures and pressures non-parametric test Wilcoxon signed-rank test crude oils Anton Paar |
| title | Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods |
| title_full | Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods |
| title_fullStr | Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods |
| title_full_unstemmed | Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods |
| title_short | Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods |
| title_sort | metrological evaluation of the compatibility of two different digital density meter adjustment methods |
| topic | digital density meter adjustment high temperatures and pressures non-parametric test Wilcoxon signed-rank test crude oils Anton Paar |
| url | https://www.mdpi.com/2673-8244/3/2/8 |
| work_keys_str_mv | AT eugeniobenevidesdossantos metrologicalevaluationofthecompatibilityoftwodifferentdigitaldensitymeteradjustmentmethods AT elciocruzdeoliveira metrologicalevaluationofthecompatibilityoftwodifferentdigitaldensitymeteradjustmentmethods |