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NP-1 Nano-polyester for Drilling Fluid
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Product Description

NP-1 is a multi-polymer composed of alkane sulfonate, alkyl ester, crosslinking agent. It forms nano-solid sealing material through special technology. The special functional groups on the molecular chain has strong adsorption ability, and strong adhesion properties. NP-1 reduces pore-pressure transmission by sealing pore throats and micro-fractures due to reasonable size distribution of NP-1 in muds. It can be used in various water-base drilling fluids. Its recommend dosage is 1.0 – 3.0% (v/v).


Technical Specification




White Emulsion



Particle size D50 after 150℃/16h aging, μm


Penetration Index, mm





Form semipermeable membrane at the borehole interface and cutting surface, to maintain the stability of borehole and integrity of the cuttings.

Excellent performance of borehole stability, it can be applied to all kinds of strong water- sensitive and other complex formation.

Resist high temperature up to 200 ℃ and reduce HTHP filtration loss.

Compatible with other additives well.

Low fluorescence, can be applied to exploration wells.


Package and Storage

It is a liquid packaged in 5 gal cans and 55 gal drums. International packaging may vary. And they shall be stored in a shady and dry place with good ventilation.



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.

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