MIXED METAL HYDROXIDE DRILLING FLUID MINIMIZES WELL BORE WASHOUTS

Frederic Lavoix Elf Aquitaine Production Pau, France Mark Lewis International Drilling Fluids Inc. Houston The use of a mixed metal hydroxide (MMH) drilling fluid, instead of a conventional polymer-based fluid, improved well bore stability in troublesome formations in West Africa. The unique flow and suspension characteristics of the MMH fluid improved cuttings removal and decreased well bore washouts. With fewer hole problems and better cleaning in the well, the operator reduced drilling time

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