Core Barrels
Core barrels are downhole drilling assemblies designed to cut, retain, and protect core samples during mineral exploration and geotechnical drilling operations.
Role in the Core Drilling System
Core barrels are the primary sampling tools within a core drilling system. Positioned at the bottom of the drill string, they house the cutting bit and inner tube assembly responsible for recovering continuous, undisturbed core samples. Proper selection of core barrel type and size is essential to ensure accurate geological information, efficient drilling performance, and reliable core recovery.
Product Description
Spenta Engineers manufactures core barrels designed for consistent performance across a wide range of drilling conditions. Each core barrel is engineered to operate seamlessly with compatible drill rods, head assemblies, and wireline systems, ensuring dimensional accuracy and operational reliability in mineral exploration and geotechnical drilling projects.
Standard Sizes, Lengths & Manufacturing
Core barrels are manufactured in standard sizes including AQ, BQ, NQ, HQ, and PQ. All components are produced from high-strength alloy steel using precision machining processes. Controlled heat treatment is applied to enhance strength, wear resistance, and durability under continuous drilling conditions.
Standard Specifications
| Available Types | Single Tube, Double Tube, Triple Tube |
| Standard Sizes | AQ, BQ, NQ, HQ, PQ |
| Core Recovery Method | Conventional / Wireline |
| Material | High-strength alloy steel |
| Heat Treatment | Controlled heat treatment |
| Typical Application | Mineral exploration and geotechnical drilling |
Selection Guidance
- Single Tube Core Barrels suitable for stable formations and shallow drilling
- Double Tube Core Barrels used for general exploration drilling to improve core recovery
- Triple Tube Core Barrels recommended for fractured, soft, or weathered formations where maximum core preservation is required
Key Advantages
- Designed for efficient and reliable core recovery
- Compatible with standard wireline drilling systems
- Precision-machined components for accurate alignment
- Suitable for a wide range of geological formations
System Compatibility
Core barrels must be compatible with the selected drill rods, head assembly, and overshot system. All core barrels supplied by Spenta Engineers are designed to integrate seamlessly with standard core drilling system components of corresponding sizes.
Request a Quote for Core Barrels
Share your drilling requirements and our technical team will assist you in selecting the appropriate core barrel configuration for your application.