What is it about?
In this study, some green materials were considered as possible substitutes for PAC R in water-based drilling fluid systems. The rheological properties of four water-based mud systems with typical compositions were studied at 80 and 150 °F. These two temperature ranges were necessary so as to evaluate the effect of temperature on the viscosity, plastic viscosity and yield point properties of these mud systems formulated with these green materials as viscosifier. These green materials were processed to powder form and sieved to their finest particle sizes to reduce amount of solute that will be present in the water-based drilling fluid formed with the materials. The properties of the formulated mud systems were analyzed using API standard.
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Why is it important?
These green materials behaved optimally as viscosifiers for the formulated water-based mud systems under ambient temperature. Also the mud systems behaviour at 150 °F showed a reduction in the flow properties at this high temperature as recorded in the literatures. From the results of the experiment, we can say that Kian (Averrhoa carambola L.) has the characteristic of being a substitute for PAC R when beneficiated for water-based drilling fluids.
Perspectives
Experimental measurements on suitability and compatibility of these green materials as water-based mud fluid viscosifying agent were conducted with respect to API standard. The QAQC test, which is a bench analysis, showed that these materials acted as thickeners and thus, were further used for formulation and mud properties analysis.
Dr. Emeka Emmanuel Okoro
Covenant University
Read the Original
This page is a summary of: Optimizing aqueous drilling mud system viscosity with green additives, Journal of Petroleum Exploration and Production Technology, May 2018, Springer Science + Business Media,
DOI: 10.1007/s13202-018-0481-0.
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