Fluid Loss Additives-OBC-51S

Short Description:

OBC-51S is a polymer oil well cement fluid loss additive. It is copolymerized with AMPS/NN/HA, which has good temperature and salt resistance, as the main monomer, combined with other salt-tolerant monomers. The molecule contains a large number of -CONH2, -SO3H, -COOH and other strong adsorption groups, which play an important role in salt resistance, temperature resistance, free water adsorption, and fluid loss reduction.


Product Detail

Summary

OBC-51S is a polymer oil well cement fluid loss additive. It is copolymerized with AMPS/NN/HA, which has good temperature and salt resistance, as the main monomer, combined with other salt-tolerant monomers. The molecule contains a large number of -CONH2, -SO3H, -COOH and other strong adsorption groups, which play an important role in salt resistance, temperature resistance, free water adsorption, and fluid loss reduction.

OBC-51S has good versatility, can be used in a variety of cement slurry systems, and has good compatibility with other additives. Based on OBC-50S, the product has improved its salt resistance and has a better salt resistance function.

 OBC-51S has a wide application temperature and can resist high temperatures up to 230℃. Due to the introduction of HA, the suspension stability of the cement slurry system at high temperatures is better.

Suitable for fresh water/salt water slurry preparation.

Technical data

Item

index

Appearance

Black or brown black powder

Cement slurry performance

Item

Technical index

Test condition

Water loss,mL

≤50

80℃,6.9MPa

Thickening time, min

≥60

80℃,45MPa/45min

Initial consistency,Bc

≤30

Compressive strength, MPa

≥14

80℃,normal pressure,24h

Free water, mL

≤1.0

80℃,normal pressure

Cement slurry composition: 100% G grade cement (high sulfur resistance) + 44.0% fresh water + 0.9% OBC-51S + 0.5% defoamer.

Usage range

Temperature: ≤230°C (BHCT).

Suggestion dosage: 0.6%-3.0% (BWOC).

Package

OBC-51S is packed in a 25kg three-in-one compound bag, or packed according to customer requirements.

Shelf time: 12months.

Remark

OBC-51S can provide liquid products OBC-51L.


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