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Oil and gas production chemicals

Filtrate reducer

Product features
The product is a kind of polyacrylamide copolymer, which can effectively prevent drilling fluid and filtrate from invading the formation, thus causing shale expansion and collapse and causing borehole wall instability. This series of polymers is resistant to different formation temperatures and high salts, and exhibits excellent filtration loss performance in the range of 100-250℃ in both clear water and salt water.

Technical indicators







White or light yellow free flowing powder

Fineness (screen residue)


Solid content


Water insoluble substance




Heat resisting temperature





Apparent viscosity

≤15.0 mPa·s

≤35.0 mPa·s

High temperature and high pressure filtrate loss



Method of application
According to the actual temperature used in the field, the type and amount of addition are selected. Generally, the amount of addition is 0.1-0.4% in medium and low temperature and 0.4-1% in high temperature drilling fluid. It is recommended to prepare 1-2% aqueous polymer solution before adding to drilling fluid as needed.

Store the product in a dry and cool place to avoid exposure to the sun. Shelf life: Two years.

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