JKN-RT-900L Retarder

JKN-RT-900Ldissolves in water quickly owing to its strong hydrophilic property.It can absorb on the surfaces of the cement slurry hydrate to inhibit contact with water and chelate with Ca2+ to prevent crystal nucleus forming early.

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JKN-RT-900L Retarder

Product Description




JKN-RT-900Ldissolves in water quickly owing to its strong hydrophilic property.It can absorb on the surfaces of the cement slurry hydrate to inhibit contact with water and chelate with Ca2+ to prevent crystal nucleus forming early. Therefore, it can retard thickening time.And,it can enhance the last strength of the cement stone because C3A shows weak adsorption performance.



Characteristics




JKN-RT-900Lconsists of sulfonate and organic salts.


Normal dosage: 0.3%~2.5%(BWOC).


Suitable temperature:60℃~180℃(BHCT).


It is used in the medium and deep well.It can prolong the thickening time effectively and increase the pumped time. It can formulate a right angle thickening cement slurry system.


If there is the a settlement phenomenon happened to the cement slurry because of its strong dispersion performance, the appropriate amount of oil well cement fluid loss additive can be added to the cement slurry.



Technical Specification




Items

Specification

Appearance

Homogeneous liquid

Initial consistency , Bc/90℃,53.3MPa,49min

≤30.0

Thickening time,min/90℃,53.3MPa,49min

≥120.0

Mutation value of thickening curve,Bc

≤10.0

Thickening time extension value, min  

≥60.0

Sensitivity of increase,%  

≤25.0

Sensitivity of temperature,%

≤20.0

Transition time,min/90℃,53.3MPa,49min

≤40.0

Free liquid(90 ℃),%

≤1.4

Compression strength, MPa/113℃,21MPa,24h

≥14.0



Packing, Storage




  • Be stored in plastic barrels, 25kg/barrel.

  • Be kept away from moisture, Stored in cool and dry situation.

  • Storage life time is one year.