Fluid Loss Additives-OBC-34S

Short Description:

OBC-34S is a polymer oil well cement fluid loss additive. It is copolymerized with AMPS/NN, which has good resistance to temperature and salt, as the main monomer, combined with other salt-tolerant monomers. The product introduces groups that are not easily hydrolyzed, the high temperature resistance is significantly enhanced, and the molecule contains a large number of strong adsorption groups such as -CONH2, -SO3H, -COOH, etc., which play an important role in salt resistance, temperature resistance, free water adsorption, fluid loss reduction, etc.


Product Detail

Summary

OBC-34S is a polymer oil well cement fluid loss additive. It is copolymerized with AMPS/NN, which has good resistance to temperature and salt, as the main monomer, combined with other salt-tolerant monomers. The product introduces groups that are not easily hydrolyzed, the high temperature resistance is significantly enhanced, and the molecule contains a large number of strong adsorption groups such as -CONH2, -SO3H, -COOH, etc., which play an important role in salt resistance, temperature resistance, free water adsorption, fluid loss reduction, etc.

OBC-34S has good versatility, can be used in a variety of cement slurry systems, and has good compatibility with other additives.

OBC-34S has a high low shear rate viscosity, which can effectively enhance the suspension stability of the cement slurry system, while maintaining the fluidity of the slurry, preventing sedimentation. It has not anti-gas channeling function because of the change of functional group.

OBC-34S has a wide application temperature, high temperature resistance up to 230℃, good fluidity and stability of the cement slurry system, less free liquid, no retardation, and rapid development of early strength at low temperature.

OBC-34S is suitable for fresh water/salt water slurry mixing.

Technical data

Item

Index

Appearance

White powder

Cement slurry performance

Item

Technical index

Test condition

Water loss,mL

≤100

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 + 0.6% OBC-34S + 0.5% defoamer.

Usage range

Temperature: ≤230°C (BHCT).

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

Package

OBC-34S is packed in a 25kg three-in-one compound bag, or packed according to customer requirements.

Remark

OBC-34S can provide liquid products OBC-34L.


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