| Autor: |
Marum Daniela Martins, Afonso Maria Diná, Ochoa Brian Bernardo |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Applied Rheology, Vol 30, Iss 1, Pp 107-118 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1617-8106 |
| DOI: |
10.1515/arh-2020-0108 |
| Popis: |
Predicting drilling fluids rheology is crucial to control/optimize the drilling process and the gas extraction from drilling fluids in logging systems. A Couette viscometer measured the apparent viscosity of a bentonite mud at various shear rates and temperatures. The bentonite mud behaved as a yield-pseudoplastic fluid, and a modified Herschel-Bulkley model predicted the shear rate and temperature effects upon the shear stress. A pipe viscometer was built to seek a correlation between the mud flow rate and the pressure drop and thereby determine refined Herschel-Bulkley parameters. Coupling a rheological model to a pipe viscometer enables the continuous acquisition of apparent viscosities of Newtonian or non-Newtonian fluids at a rig-site surface. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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