Bentonite chips are a commonly used product in well construction and well abandonment. They are available in a medium size (⅜-inch) as well as a coarse size (¾-inch) For many applications, these bentonite chips are sufficient. However, there are cases where the use of bentonite tablets is preferred.
Bentonite tablets are made from a high-quality, high-swell bentonite source. The clay is field dried to a specific moisture content and then further dried in a rotary kiln dryer. It is screened to a granular consistency (30-50 or 8-20 mesh), then compressed into tablets. The tablets are available in sizes ranging from ¼- to ½-inch.