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  • Name:DSP-2 Copolymer Filtration Reducer
  • ID:cp504
  • AddTime:2019-06-24
  • Hits:930
Product Detail

Product Description

DSP-2 is synthesized from acrylamide (AM), acrylic acid (AA), sulfonic acid (AOBS), epichlorohydrin and a new ring structure of cationic monomer under the effect of the initiator through many multi-step polymerizations. It can increase the viscosity effectively in freshwater muds and increase the viscosity slightly in saltwater muds, reduce the filtration loss, improve the quality of mud cake, inhibit clay dispersion. DSP-2 is suitable for seawater drilling fluids, deep well and ultra-deep well drilling fluids. The recommend dosage is between 3.0 – 5.0 ppb.


Technical Specification




White or light yellow powder

Moisture, %


Residue (0.90mm), %




Active matter content, %


FLAPI for compound brine slurry, mL

Room Temp.







Good capability to reduce filtration loss with low dosage.

Perform well up to 180 ℃, can be used for deep and ultra-deep wells.

Resist salt to saturation and resist calcium and magnesium well. It can be applied in freshwater, saltwater, saturated saltwater and seawater drilling and completion fluids.

Increase viscosity slightly.


Package and Storage

They shall be packaged in 25kg multi-wall paper sacks. They shall be stored in a shady, dry, and ventilated place.



They shall be avoided contact with eyes, skins and clothes, otherwise flush it with water. Handling methods and dangerous data shall be referred to MSDS.