CMC Drilling Fluid Filtration Loss Agent Drilling Fluid Additives
PAC HV is high viscosity polyanionic cellulose and low molecular
weight, low viscosity type polymer designed specifically for use in
solids-laden, water-based drilling fluids, which can effectively
reduces the filtration rate of many water-based drilling fluids,
especially solids-laden fluids, without causing significant
increases in viscosity or gel strengths.
|Appearance||Free flowing off-white powder|
|Moisture Content %||10.0 Max|
|PH of Solution||6.0-8.5|
|Particle Size||95%min pass through 40mesh|
|2.2g in 350ml Deionized water||600 rpm reading value||≥30|
|2.7g in 350ml 4%Nacl||≥30|
|2.5g in 350ml Saturated Navl||≥30|
|Fluid loss (ml/30min)||≤10|
CMC - HV in Oil-Drilling Industry:
High degree of substitution, good uniformity of substitution,high
viscosity, low dosage, improve the performance of drilling mud.Good
resistance to humidity ,salt and alkali, suitable for fresh water,
sea water and saturated brine slurry.Stabilize soft soil structure
and prevent collapse of wall of a well.Suitable for a wide range of
mud systems, unstable solid content mud system.
Method for dissolution and usage:
1 . Under continuous stirring, slowly adding CMC into the water,
until completely dissolved.
2 . Take a predetermined amount of 50% of the water and heated to
about 60 °C, fully stirring water and slowly add CMC, finally add
the remaining water, which can be completely dissolved.