Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
[Appearance] This product appears as white, earthy yellow, or gray powder.
[Physical and Chemical Properties]
The product is primarily composed of organic salts. The recommended dosage is 1.5%–4.0% (by weight of cement, BWOC). With an applicable temperature range from 28℃ to 110℃, it is suitable for both conventional and low-density cements. It is applicable to fly ash low-density cement, standard oil well cement, and microsphere-based low-density cement slurry systems. It can be used in both dry-blending or wet-blending applications.
Table 1 Requirements for Physical and Chemical Properties of Oil Well Cement EarlyStrength Agent
| ltem | Specification |
| Appearance | Powder or granules |
| Moisture content，% ≤ | 5.0 |
| Fineness (0.84 mm sieve residue)，% ≤ | 4.0 |
Table 2 Requirements for the Performance of Cement Slurry and Set Cement withLow-Temperature (30°C) Early Strength Agent
| ltem | Specification |
Fluid loss，% ≤ | 1.0 |
Compressive strength，MPa ≥ | 3.5 |
Table 3 Requirements for the Performance of Cement Slurry and Set Cement withMedium-Temperature (52'c) Early Strength Agent
| ltem | Specification |
Fluid loss,% ≤ | 1.0 |
Initial consistency,Bc ≤ | 30 |
Thickening time reduction rate,% ≤ | 25 |
| Ratio of compressive strength ≥ | 1.35 |
[Applications]
The main function of the oil well cement early strength agent is to accelerate cement hydration, promote early strength development, enhance early slurry strength, stabilize the cement slurry structure, reduce volume shrinkage of set cement, and improve the bonding effectiveness between cement and formation. Specifically, the agent alters ion concentrations during cement hydration, accelerating the dissolution of cement components and promoting the reaction of C₃S, C₃A and the formation of ettringite, thereby densifying the cement structure and achieving early strength or accelerated setting. Early strength agents are suitable for low-density and medium-low temperature cement slurry systems, activating the reactivity of inert materials, enhancing early compressive strength, reducing cement shrinkage and improving overall slurry performance.
[Product Advantages]
With a wide application range, the product accelerates cement hydration, enhances early strength, exhibits excellent compatibility with other additives and maintains effectiveness across a wide temperature range.
[Packaging] 25 kg/bag, packed in moisture-proof kraft paper bags with triple-layer composite structure
[Storage Conditions] Store in a cool, dry, and well-ventilated area. Protect from moisture, fire, and high temperatures.
