Description
1. Product Overview
Walnut Shells Crushed 12–20 Mesh — LCM (Lost Circulation Material) are high-performance, naturally derived granular materials engineered for fluid loss control in drilling operations. Produced from carefully processed walnut shell waste, this material delivers reliable bridging and sealing properties that help prevent drilling fluid loss into porous or fractured formations. With its controlled particle size distribution and mechanical strength, it enables operators to maintain wellbore stability and improve drilling efficiency. As the energy industry continues to prioritize operational reliability and environmentally responsible materials, walnut shell LCM provides a proven, sustainable solution for modern drilling programs.
2. Key Specifications & Technical Characteristics
- Material Composition: Processed natural walnut shells (lignocellulosic biomass)
- Purity / Grade: Industrial-grade, screened and cleaned to remove dust and foreign matter
- Mesh Size: 12–20 mesh particle size distribution
- Form: Crushed granular particles
- Color: Light brown to dark brown
- Bulk Density: Approx. 0.64–0.80 g/cm³ (varies slightly depending on processing)
- Hardness: High compressive strength with controlled abrasiveness
- Solubility: Insoluble in water and common drilling fluids
- Chemical Stability: Stable under typical drilling temperatures and fluid systems
- Packaging Options:
- 25 kg industrial bags
- 500 kg / 1000 kg jumbo bags
- Custom bulk packaging available for large-scale drilling operations
- Shelf Life: 24 months when stored in dry, ventilated conditions
3. Core Industrial Applications
Oil & Gas Drilling (Primary Application)
Walnut Shells Crushed 12–20 Mesh are widely used as lost circulation materials (LCM) in drilling fluids to control fluid loss into fractured or permeable formations. The particle size is optimized to bridge formation voids and create an effective seal, preventing costly drilling fluid losses and improving wellbore integrity.
Wellbore Stabilization
In water-based and oil-based mud systems, walnut shell LCM helps stabilize drilling operations by forming a temporary barrier within fracture zones, allowing continued drilling without significant fluid loss.
Completion and Workover Fluids
Due to its mechanical strength and chemical stability, walnut shell material is also used in completion fluids where reliable particulate bridging is required without damaging formation permeability.
Operational Advantages Over Alternatives
- Natural material that minimizes formation damage
- High compressive strength ensures effective sealing under pressure
- Controlled particle distribution improves bridging efficiency
- Compatible with multiple drilling fluid systems
- Cost-effective compared to synthetic LCM materials
4. Competitive Advantages
- Consistent Quality Control: Precisely screened particle size distribution ensures predictable performance in drilling environments
- Reliable Bulk Supply: Industrial-scale production capable of supporting large drilling programs
- Global Logistics Capability: Efficient export packaging and containerized shipment for international energy markets
- Cost-Effective Performance: Competitive pricing compared to synthetic lost circulation materials while maintaining high operational reliability
- Environmentally Responsible: Derived from renewable agricultural by-products, supporting sustainable material sourcing
- Technical Documentation: Product specifications, particle distribution analysis, and application guidance available upon request
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): BULK 20 MT
- Loading Capacity:
- 20 ft Container: ~20–22 MT depending on packaging format
- 40 ft Container: ~24–26 MT depending on packaging configuration











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