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Use of Calcium Carbonate as Loss Circulation Material in High Pressure High Temperature Drilling Fluids
Date
2018-07-26
Author
Kök, Mustafa Verşan
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https://hdl.handle.net/11511/75990
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Bentonite is the most preferred silicate-based binder in iron ore pelletizing. However, it is considered as an impurity due to its high SiO2 and Al2O3 content. The iron-making economy is adversely affected by the addition of bentonite or other silicate-based binders. In recent years, impurity-free alternative binders have been tested in order to replace bentonite or to lower the bentonite dosage. Organic binders yield good quality green and dry pellets. However, they fail to impart enough mechanical strengt...
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In drilling technologies, Na-bentonite-water mixtures are used as drilling mud. As the reserves of sodium-bentonite decline, calcium or low-quality bentonites are activated with inorganic salts and/or treated with different types of polymers as an alternative to Na-bentonite. The quality of such bentonites, commonly referred to as extended bentonite may deteriorate under severe drilling conditions, such as; bacterial activity, high temperature etc. It was considered that borates could prevent the deteriorat...
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M. V. Kök, “Use of Calcium Carbonate as Loss Circulation Material in High Pressure High Temperature Drilling Fluids,” 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/75990.