Drilling fluids comprising sized graphite particles

Details Drilling fluids comprising sized graphite particles Drilling fluids comprising sized graphite particles

C - Chemistry, Metallurgy

09

K

C09K 8/05 (2006.01)

Patent

CA 2521749

Drilling fluid systems, graphite particle mixtures, and methods for use thereof including: (a) drilling fluid systems having effective rheology and lubricity properties comprising a suspension of graphite particles having a particle size distribution sufficient to permit greater than 65 wt.% of the graphite particles to pass through a shaker screen having a mesh size of about 80 or less; and (b) spotting fluids having effective rheology comprising graphite particles having an average particle size of 120 mesh or greater.

L'invention concerne des systèmes de liquides de forage, des mélanges de particules de graphite et leurs procédés d'utilisation, y compris : (a) des systèmes de liquides de forage possédant des propriétés rhéologiques et lubrifiantes efficaces, comprenant des particules de graphite en suspension ayant une distribution granulométrique suffisante pour permettre à plus de 65 % en masse des particules de graphite de traverser un séparateur densimétrique ayant un calibre inférieur ou égal à 80 mesh ; et (b) des liquides de spotting ayant une rhéologie efficace, comprenant des particules de graphite ayant une dimension granulométrique moyenne supérieure ou égale à 120 mesh.

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