Bentonite in Drilling Mud Fluids Appliions Types
WEBJul 2, 2021 · Bentonite continues to rank second in quantity only to barite as a mud additive, as shown in Fig. In spite of the partial replacement of bentonite by polymers in some muds, about 1,160,000 short tons (1,050,000 tonnes) of swellingtype bentonite, with a wellsite cost of roughly 120,000,000 (check also oil well drilling well .