Drilling fluid

Details Drilling fluid Drilling fluid

C - Chemistry, Metallurgy

09

K

31/33

C09K 8/14 (2006.01)

Patent

CA 1252281

Abstract Drilling fluid for drilling of wells is subterranean forma- tions where the weight material includes particles of one or more metals and/or metal alloys, including iron and steel. The particles are preferably formed as pearls (pellets) or are ball- shaped and can be made of stainless steel. The weight material can have a small part of particles made of zinc for cathodic protection of pumps and pipe installations which the drilling fluid is transported through.

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