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Summary
OBC-30S is a polymer oil well cement fluid loss additive. It is copolymerized with AMPS/AM, which has good resistance to temperature and salt, 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-30S has a wide application temperature, high temperature resistance up to 150°C, good fluidity and stability of the cement slurry system, less free liquid, no retardation, and rapid strength development.
OBC-30S is suitable for configuring various seawater cement slurry systems and has good compatibility with other additives.
OBC-30S has strong dispersibility in cement slurry, and is especially suitable for the configuration of cement slurry systems with high solid content in fresh water or a high proportion of ultra-fine materials.
Technical data
|
Item |
index |
|
Appearance |
White 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 + 0.8% OBC-31S + 0.5% defoamer. | ||
Usage range
Temperature: ≤150°C (BHCT).
Suggestion dosage: 0.6%-3.0% (BWOC).
Package
OBC-30S is packed in a 25kg three-in-one compound bag, or packed according to customer requirements.
Remark
OBC-30S can provide liquid products OBC-30L.
