Description
1. Product Overview
Silica Flour is a premium-grade, finely milled crystalline silica engineered as a high-temperature additive for oilfield and industrial cementing operations. Its primary use is to prevent strength retrogression in cement systems exposed to temperatures above 110°C, ensuring long-term zonal isolation and well integrity. The key value proposition is superior thermal stability combined with consistent particle size distribution, delivering predictable slurry performance and reduced additive loading. In today’s market, reliable high-temperature cement additives are strategically critical for deepwater, geothermal, and HPHT well construction where failure risks and non-productive time carry significant financial exposure.
2. Key Specifications & Technical Characteristics
- Chemical Composition: Silicon dioxide SiO2, minimum 98.5%
- Purity Grade: API Spec 10A compliant, industrial grade with Fe2O3 less than 0.05%
- Physical Form: Dry, free-flowing powder
- Color: Off-white to light grey
- Particle Size: D50 15-25 microns, 325 mesh residue less than 5%
- Specific Gravity: 2.65
- Moisture Content: Less than 0.5%
- Packaging Options: 25 kg multi-wall paper bags with PE liner, 1.0 MT jumbo bags, bulk tanker for silo delivery
- Shelf Life: 24 months when stored in original sealed packaging in dry, ventilated conditions
3. Core Industrial Applications
- Primary Industries: Upstream oil and gas, geothermal energy, industrial construction, refractory manufacturing
- Specific Use Cases: High-temperature oilwell cementing above 110°C, geothermal well cementing, thermal recovery wells, furnace and kiln refractory castables, ceramic formulations requiring thermal shock resistance
- Performance vs Alternatives: Outperforms standard Class G cement alone by preventing compressive strength decline and permeability increase at elevated temperatures. Provides better slurry stability than coarse silica sand due to higher surface area and reactivity
- Efficiency & Cost Advantages: Enables optimized cement designs with lower total additive packages, reduces risk of costly remedial cementing, and extends productive life of wells. Consistent particle size reduces mixing energy and improves batch to batch reproducibility
4. Competitive Advantages
- Quality Consistency: Manufactured under ISO 9001 certified processes with full lot traceability and API 10A batch testing. Certificate of Analysis provided with each shipment
- Supply Reliability: Dedicated production lines with 50,000 MT annual capacity and regional stocking hubs in Houston, Rotterdam, and Singapore
- Logistics Capability: Experienced in bulk vessel, containerized, and intermodal delivery. In-house export documentation and HS code classification support
- Price Competitiveness: Direct mine-to-mill integration reduces intermediary costs while maintaining premium specifications for long-term contract stability
- Sustainability: Low-waste dry milling process, 100% recyclable packaging options, and compliance with REACH and RoHS directives
- Technical Support: Full lab support for slurry testing, compatibility studies, and on-site technical service. SDS, TDS, and regulatory documents available in multiple languages
5. Commercial & Supply Information
- Minimum Order Quantity MOQ: BULK 20MT
- Loading Capacity: 26 MT per 20-foot FCL container for bagged product, 27-28 MT per 20-foot FCL for jumbo bags
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