C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/035 (2006.01) E21B 21/01 (2006.01) E21B 43/22 (2006.01)
Patent
CA 2562651
A drilling fluid additive comprised of ground canola meal that decreases seepage loss and fluid loss of the fluid to permeable formations. The canola meal is ground to particle sizes between about 10 and 1250 microns, preferably between about 100 to 1000 microns. This product can be added to oil or water based drilling fluids. It is environmentally safe, reduces torque and drag on a drill string, and provides viscosity in the system. The additive has a high return permeability and acid degradability.
Blake Cassels & Graydon Llp
Paloverde Environmental Ltd.
LandOfFree
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