Fluid Loss Additives-OBC-34S

Short Description:

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, temper...


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, and having good gas channeling resistance.

OBC-34S has a wide application temperature, high temperature resistance up to 180℃, 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.

Usage range

Temperature: ≤180°C (BHCT).

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

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.

Packing

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

Storage

It should be stored in cool, dry and ventilated areas and avoid being exposed to the sun and rain.

Shelf life:24 months.

Remark

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

 


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