Product Name: Oil well cement retarder
Appearance: Grey white/light brownish yellow free flowing powder, loose and uniform powder
Product attribute: Special additive for oil well cementing slurry, extending the thickening time of cement slurry and ensuring the safety of high-temperature cementing construction in deep wells
Water solubility: easily dispersed in cement slurry system
Sample tip: Seed glass bottles are laboratory display samples, while bulk orders are packaged in industrial bags
Storage conditions: ventilated, cool and dry storage, strictly prevent moisture
Shelf life: 24 months with intact sealing
Material Description
Organic phosphonate or modified lignin functional component composite powder. Adsorbed on the surface of cement hydration particles, it inhibits the rate of cement hydration reaction, prolongs the thickening time, and stably regulates the waiting period of cement slurry under high temperature environment, without hindering the development of compressive strength in the later stage.
Core selling point
1. Stable high-temperature retarding effect, suitable for deep well high-temperature cementing conditions
2. Controllable extension of thickening time to ensure the safety of injection replacement construction
3. It has little impact on the rheological properties of cement slurry, and the later strength development is not inhibited
4. Moderate sensitivity to dosage, easy to adjust formula
5. Excellent compatibility, can be used in combination with various cementing additives
6. Both dry mixing and slurry water feeding are available, with flexible construction
Product Advantages
-Effectively delaying cement hydration, extending thickening time, meeting the requirements of cementing construction time for long sealing sections in deep wells, and preventing premature thickening during the construction process
-Stable retarding effect under high temperature conditions, not easily ineffective, suitable for high-temperature well cementing formula
-Small disturbance to the rheological properties of cement slurry, without damaging the overall performance of the slurry, and normal increase in compressive strength of cement stone after setting
-Good compatibility with well cementing additives such as fluid loss agents, dispersants, and expansion agents, suitable for different density cement slurry systems
-The feeding method is flexible, and it can be mixed with cement dry or added to the mixing water for use
Usage
1. It can be dry mixed with oil well cement or mixed with slurry water, and can be used in combination with other cementing additives.
2. Add to the cementing formula for deep wells, high-temperature wells, and long sealing sections.
3. Before on-site use, indoor formula trials must be conducted to determine the optimal dosage based on the circulating temperature at the bottom of the well, and then on-site construction can be carried out.
4. Mix and stir thoroughly according to the formula ratio, and perform injection replacement cementing operations.
Storage precautions
Sealed and moisture-proof, avoiding exposure to sunlight and rain; Use up as soon as possible after opening; Wear dust-proof protective equipment during operation.