Product Introduction:
Poly anionic cellulose, abbreviated as PAC, is a water-soluble cellulose derivative obtained by chemical modification of natural cellulose. It is an important water-soluble cellulose, which is a white or slightly yellow powder, non-toxic and odorless. It can dissolve in water and has good heat stability, salt resistance, and strong antibacterial properties. The mud fluid formulated with this product has good water loss reduction, inhibition, and high temperature resistance. Widely used in oil drilling, especially saltwater wells and offshore oil drilling.
Polyanionic Cellulose PAC products are divided into two categories: high viscosity (HV) and low viscosity (LV), and are high-tech products with independent intellectual property rights of our company. Belonging to anionic cellulose, it has the characteristics of high purity, high degree of substitution, and uniform distribution of substitution. It can be used as a thickener, rheological regulator, water loss agent, etc. High viscosity and low viscosity PAC have excellent filtration reducing effects in both freshwater and seawater mud, and are indispensable products in mud compatibility. The PAC produced by our company is a high-purity refined product with a white flowing powder appearance, and its aqueous solution is a transparent viscous liquid.
PAC, as a water-soluble polymer, has the following functions and properties:
(1) Quickly dissolve in cold or hot water;
(2) Can be used as a thickener, rheology controller, adhesive, stabilizer, protective colloid, suspension agent, and water retaining agent;
In the petroleum extraction industry, PAC is a good drilling mud treatment agent and material for preparing completion fluids, with high slurry production rate and good salt resistance. PAC is an excellent filtration loss reducing agent for freshwater mud, seawater mud, and rain saturated saltwater mud, and has good viscosity increasing ability and high temperature resistance (150 ℃). Suitable for preparing fresh water, seawater, and saturated saltwater completion fluids, and can be formulated into completion fluids of various densities under the weight of calcium chloride. It can also make the completion fluid have a certain viscosity and low filtration loss. Our company's high and low viscosity PAC products comply with GB/T 5005 standards, European OCMA standards, and API 13A standards.