Drilling bentonites are produced using a special variety of modified bentonite. Such a formula facilitates the preparation of a suspension which has proper rheological parameters, as specified by the American Petroleum Institute. A bentonite fluid has good lubricating properties and a very high capacity for transporting excavated material irrespective of the local geological conditions.
A drilling fluid is an essential element of drilling work. If badly selected, it can cause many complications during drilling and increased costs as a result.