M-I SWACO, a Schlumberger company


M-I SWACO became a Schlumberger company in 2010. Innovative drilling fluid engineers are at the company's core, helping oil and gas operators increase efficiency and lower costs. We do this by developing drilling fluid systems and additives that accommodate a wide range of drilling environments and demanding applications—including HPHT, deep water and ultradeep water, shale gas, heavy oil, depleted wells, and more.

Editor's note: Updated Feb. 11, 2020.


Pickling as part of the shut-in process can help extend the shelf life of a well.

A new stable water-based drilling fluid provides thermal stability to maintain rheology and fluid loss control in high-temperature…

A company increased drilling efficiency for long laterals using an integrated alternative drilling technique.