Description
Cellulose Derivative · Low Viscosity
Carboxy Methyl Cellulose – CMC Low Viscosity Grade (LV)
Water-soluble cellulose derivative specifically designed for applications requiring effective fluid loss control with minimal viscosity contribution. Commonly used in drilling fluids, cement slurries, and completion fluids where low viscosity is essential for operational efficiency. CMC LV is a cost-effective and environmentally safe additive suitable for use across a variety of water-based mud systems.
Product Overview
Carboxy Methyl Cellulose (CMC) Low Viscosity Grade is a water-soluble cellulose derivative specifically designed for applications requiring effective fluid loss control with minimal viscosity contribution. It is commonly used in drilling fluids, cement slurries, and completion fluids where low viscosity is essential for operational efficiency. CMC LV is a cost-effective and environmentally safe additive suitable for use across a variety of water-based mud systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Appearance | White to Cream Powder |
| Degree of Substitution (DS) | 0.65 – 0.85 |
| Viscosity (2% solution, 25°C) | 20 – 100 mPa·s |
| Moisture Content | ≤ 10% |
| pH (1% solution) | 6.5 – 8.5 |
| Purity | ≥ 85% |
| Particle Size | 95% pass through 100 mesh |
| Solubility | Soluble in hot and cold water |
Applications
Drilling Fluids
Fluid loss control without viscosity increase
Cement Slurries
Reduces fluid loss during cementing operations
Completion Fluids
Filtration control in high-density brine systems
Workover Operations
Minimizes fluid invasion into formations
Detergent & Textile Industry
Used as a processing aid
Safety Information
Handling Precautions
- Avoid inhalation of dust during handling
- Use appropriate PPE — dust mask, safety goggles, and gloves
- Keep away from open flames and ignition sources
Storage Conditions
- Store in a cool, dry, and well-ventilated area
- Keep away from moisture and direct sunlight
- Recommended storage temperature: Below 40°C
- Shelf Life: 2 years from date of manufacture when stored properly
First Aid Measures
- Eyes: Flush immediately with plenty of water for 15 minutes
- Skin: Wash thoroughly with soap and water
- Inhalation: Move to fresh air immediately; seek medical attention if irritation persists
- Ingestion: Do not induce vomiting; seek immediate medical attention
✔ Non-toxic
✔ Biodegradable
✔ Not classified as hazardous under GHS
✔ Biodegradable
✔ Not classified as hazardous under GHS
Frequently Asked Questions (FAQs)
Q1. How does CMC LV differ from CMC Regular Grade?
CMC LV has a lower molecular weight than CMC RG, resulting in significantly lower viscosity in solution. It provides similar fluid loss control while contributing minimal viscosity to the mud system.
Q2. Is CMC LV compatible with high-density completion fluids?
Yes. CMC LV is compatible with many completion fluid systems and is used for filtration control without affecting the density or flow properties significantly.
Q3. What is the recommended dosage of CMC LV?
Typical dosage ranges from 0.25 to 2.0 lb/bbl depending on the desired fluid loss control and the specific mud or fluid system in use.
Q4. Can CMC LV be used in cement slurries?
Yes. CMC LV is widely used as a fluid loss additive in cement slurries for oil well cementing operations.
Q5. Is CMC LV safe for the environment?
Yes. CMC LV is biodegradable and derived from natural cellulose, making it environmentally safe under normal use and disposal conditions.
Q6. What is the shelf life of CMC LV?
CMC LV has a shelf life of 2 years when stored in sealed packaging in a cool, dry environment away from moisture and direct sunlight.
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