Quick question about drilling fluids

**petro_student** · 10-06-2009, 03:54 AM

What can be used to improve the fluid loss properties of water-based drilling fluids?

**babe221** · 10-10-2009, 10:06 PM

Use mica, to minimize fluid loss, it will covered the porous zone in the formation quickly..

**ahmed abou zena** · 10-11-2009, 11:09 AM

Originally Posted by babe221

Use mica, to minimize fluid loss, it will covered the porous zone in the formation quickly..

can you tell me what's the mechanism to use mica in this case?
thanks alot

**goon24** · 11-29-2009, 03:43 AM

starch is a fluid loss control agent at 4-6 ppb but not good or hi-temp and will bio-degrade. CMC or more refined PAC will also decrease fluid loss which comes in regular which will also incr. the vis or low vis. PAC conc. is 0.5 -1.5 ppb. Cypan (sod.polyacrylate) is very temp stabile at 1-2 ppb, over treatment will thin drilling fluid.

**marwaalqutt** · 01-27-2010, 09:07 PM

goon24
bravo

**RichardNagel** · 01-31-2010, 04:40 AM

USE PAC polymers and Starches. A combination of these (3-4 sx Starch to 1 sk PAC) works better than either of the two by themslves. Be aware that Starches are very susceptlble to bacterial degredation.