دورية أكاديمية
Experimental analysis of the impact of ionic concentration and type on shale's stability: dilute vs. concentrated salt solutions.
العنوان: | Experimental analysis of the impact of ionic concentration and type on shale's stability: dilute vs. concentrated salt solutions. |
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المؤلفون: | Alkhaldi, M. M., AL-Bazali, T. M. |
المصدر: | Geosystem Engineering; Aug2023, Vol. 26 Issue 4, p129-141, 13p |
مصطلحات موضوعية: | SOLUTION (Chemistry), SHALE, PETROPHYSICS, DRILLING fluids, DRILLING muds, CONCENTRATION gradient |
مستخلص: | Wellbore instability in shale formations is one of the most bothersome problems leading to significant changes in shale's petrophysical, mechanical, and chemical properties, and could cost billions of dollars annually. Drilling fluid's ionic composition is one of the factors affecting wellbore stability. This paper investigates the impact of chemical osmosis, ionic diffusion, and diffusion osmosis on the stability of shale, identify the critical salt concentration, and examine the impact of ionic type and concentration on shale's stability. Experimental methods include utilisation of two different shale cores (I and II), in which each core is cut into several samples, to conduct linear expansion and gravimetric measurement tests using different salt solutions (KCl, NaCl, and CaCl |
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قاعدة البيانات: | Complementary Index |
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