KimaCell® PAC LV Polyanionic Cellulose also named as Poly anionic cellulose, referred to as PAC is a water-soluble cellulose ether derivative obtained by chemically modifying natural cellulose. It is an important water-soluble cellulose ether, and its sodium salt is usually used. The mud fluid prepared by using this product has good dehydration reduction, inhibition and high temperature resistance. Therefore, it is widely used in oil drilling, especially in salt water wells and offshore oil drilling.
Poly anionic cellulose, PAC
Water Soluble Cellulose ether
White to off-white cellulose powder
Degree of Substitution
PH of 1% Solution
Apparent viscosity, cP
Fresh Water Fluids Loss, ml
Sea Water Fluids Loss, ml
KimaCell® PAC LV is Low-viscosity Polyanionic Cellulose which can effectively reduce fluid loss without significantly increasing the viscosity of the system, especially for high-solid content systems; PAC LV has high slurry production capacity and obvious fluid loss reduction, and is especially suitable for low-solid mud and solid-free mud Phase brine slurry.
Mud fluid formulated with PAC can inhibit the dispersion and expansion of clay and shale in high-saline media, so that the wellbore contamination can be controlled. Due to the good uniformity of pac reaction, high degree of substitution, good transparency, excellent salt resistance and heat resistance, a lower fluid loss (PAC-LV) was measured according to the ocma standard.
The workover fluid prepared with PAC has low solid phase and will not block the permeability of the production layer; it can protect the production layer from permanent damage; it has the ability to clean the wellbore and reduce the workload of maintaining the wellbore; It is resistant to water and sand penetration, and rarely foams; it can be stored or transferred between wells, and the cost is lower than that of ordinary mud workover fluids.
The fracturing fluid prepared with PAC can withstand 2% potassium chloride solution (must be added when preparing fracturing fluid), and has good solubility; it is easy to use and can be prepared on site; the gelation speed is fast and the sand-carrying ability is strong; at low osmotic pressure It is used in the formation, and its fracturing effect is more excellent.