Description
Polyanionic cellulose,PAC is
easy soluble in water, having excellent properties of
salt-resistance, Calcium,Magnesium-resistance and reduce filtration
loss. It can be used in different drilling/completion drilling
fluids, especially in salt water based drilling fluids, seawater
based drilling fluids and saturated-brine drilling fluids,can
reduce filtration very well.
Unique properties:
1) Evenly
substituted, high transparency, control viscosity and reduce
filtration loss
2) Applied
in fresh water,seawater and brine water based mud
system
3) Formulated
mud show good filtration loss, brine-resistance and high
temperature stable
4) Formulated
mud show good rheology control,to inhibit clay or shale swell or
collapse, hence to prevent well contamination
5) Stable
soft soil structure, prevent well collapse
6) While
drilling through the rock surface, to slow down the solid
accumulation in mud.
7) Keep
down the turbulence scale,to minimize the pressure loss in
reverse-flow system.
8) Improve
mud yield, reduce filtration loss
9) Stable
foam in mud
