A highly effective water-based inhibitive drilling fluid system for drilling reactive clay formations. An environmentally and economically viable alternative to oil-based muds (OBMs).
Drilled cuttings of highly active gray clay from a depth of 2200 m. Western Kazakhstan.
An effective solution to issues such as: bit not reaching the bottom of the well, borehole wall collapse, hole narrowing, inability to run casing due to insufficient inhibition of the drilling fluid — all of which can lead to increased drilling time, significant cost overruns, and even loss of the well.