Description
1. Product Overview
Calcium Carbonate Medium 20µm — Bridging Agent is a precisely milled grade of calcium carbonate engineered for use in drilling fluids and fluid-loss control systems in oil and gas operations. With a controlled median particle size of approximately 20 microns, it functions as an effective bridging and sealing material that helps stabilize wellbore formations and reduce fluid invasion into permeable zones. The key value proposition lies in its predictable particle distribution, acid solubility, and compatibility with water-based and oil-based drilling mud systems. Strategically, this material is widely used in drilling and completion programs where temporary formation plugging and clean acid removal are required to protect reservoir productivity.
2. Key Specifications & Technical Characteristics
- Chemical Composition:
- Calcium Carbonate (CaCO₃) ≥ 95–98%
- Trace natural mineral impurities (silica, magnesium compounds)
- Purity Level / Grade:
- Industrial drilling-grade calcium carbonate
- Acid-soluble mineral suitable for wellbore cleanup operations
- Physical Characteristics:
- Powder form
- Color: White to off-white
- Median particle size (D50): ~20 microns
- Controlled particle size distribution for effective bridging
- Bulk density: Typically 1.2–1.5 g/cm³ (depending on processing)
- Insoluble in water but readily soluble in acid
- Packaging Options:
- 25 kg multi-layer paper bags
- 1 MT jumbo bulk bags
- Bulk container loading for large-volume shipments
- Shelf Life:
- Indefinite under dry storage conditions
- Store in moisture-free, sealed packaging to maintain flowability
3. Core Industrial Applications
Primary Industries:
- Oil and gas drilling operations
- Drilling fluid service companies
- Well completion and workover services
- Oilfield chemical suppliers
Operational Use Cases:
- Bridging agent in drilling mud systems to reduce formation fluid loss
- Temporary plugging of permeable formations during drilling operations
- Formation damage control in reservoir drilling environments
- Lost circulation mitigation in medium-permeability zones
- Acid-soluble filler for drilling and completion fluid formulations
Performance & Cost Advantages:
The controlled 20µm particle size distribution provides efficient bridging of formation pores while maintaining optimal fluid rheology. Its acid solubility allows easy removal during well stimulation or acidizing treatments, preventing permanent formation damage. Compared to non-soluble bridging materials, calcium carbonate offers superior reservoir compatibility, operational flexibility, and cost efficiency in drilling fluid systems.
4. Competitive Advantages
- Quality Consistency: Precisely controlled particle size distribution with batch quality verification
- Supply Reliability: Scalable production capacity for continuous drilling program supply
- Logistics Capability: Global bulk shipping and containerized export handling
- Price Competitiveness: Cost-efficient alternative to synthetic bridging materials
- Sustainability Benefits: Naturally derived mineral with minimal environmental impact
- Technical Documentation: Full product specification sheets, COA, and SDS available
Positioned as a strategic drilling fluid additive, Calcium Carbonate Medium 20µm enables operators and service companies to maintain wellbore stability, optimize drilling efficiency, and protect reservoir performance throughout drilling and completion operations.
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): BULK 20MT
- Loading Capacity (MT per container): Approximately 20–25 MT per 20’ container depending on packaging configuration
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