Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
[Appearance] The solid product appears as a free-flowing white or off-white fibrous powder without caking. The liquid product presents as a homogeneous emulsion showing no microbial degradation.
[Physical and Chemical Properties] This product is non-toxic and odorless. It is primarily made from styrene-butadiene latex, synthesized by emulsion polymerization with butadiene and styrene as the main monomers. It exhibits excellent chemical and mechanical stability, with no adverse effect on cement slurry thickening time, rheology, or free water, significantly enhances compressive strength, and provides effective gas migration control during the waiting-on-cement (WOC) period.
Technical Specifications of Gas Migration Control Additive
Item | Specification | |
Appearance | Solid | Liquid |
Non-caking solid | Uniform emulsion without mildew | |
| Initial consistency, Bc / 80℃, 46.5MPa, 45min | ≤30 | |
| Thickening curve spike value, Bc | ≤10 | |
| Transition time, min | ≤40 | |
| Fluid loss, ml / 80℃, 6.9MPa, 30min | ≥100 | |
Compressive strength, MPa / 102℃, 21MPa, 24h | ≥14 | |
[Application] The primary function of the gas migration control additive is to prevent gas migration, improve cementing quality, and avoid gas channeling, thereby avoiding cementing failures and wellbore instability to ensure the safe and efficient operation of oil and gas wells. It can significantly reduce operational difficulty and increase success rates.
1. It reduces free water, fills voids, increases density, and helps resist corrosion.
2. It improves bonding strength and accelerates the development of early compressive strength.
3. It has good salt resistance and auxiliary fluid loss reduction properties, allowing reduced dosage of fluid loss additives.
[Product Advantages]
1. Excellent gas migration prevention performance;
2. Effective cementing quality improvement;
3. Fluid loss reduction and excellent performance in various environments;
4. Wide applicability with good stability.
[Usage and Dosage] Recommended dosage: 3%–10% by weight of cement (BWOC).
[Packaging] Solid: 25kg/bag, packed in double-layer woven plastic or triple-layer kraft paper sacks. Liquid: 50kg per drum, packed in plastic drums, customizable packaging available.
[Storage Conditions] During transport, avoid package damage. Store in a cool, dry place. Shelf life is two years for solids and one year for liquids.
