Wireline Core Drill Bits & Diamond Reaming Shells
roduct Range: Diamond Core Bits / PDC Core Bits / Reaming Shells
Sizes: BQ / NQ / HQ / PQ / NTW / HTW / 101
Application: Geological Exploration / Rock Sampling / Mineral Exploration
Formation: Soft to Hard Rock
Customization: Matrix / Cutter / Crown / Diameter / Connection
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Description
Complete Wireline Core Drilling System
A complete wireline core drilling system covering hot-pressed diamond core bits, PDC wireline core bits and matching diamond reaming shells. Available in BQ, NQ, HQ, PQ, NTW, HTW, 101 and customized core drilling sizes for geological exploration, mineral exploration and deep core drilling.
Series 01 Hot-Pressed Diamond Wireline Core Bits For continuous core drilling in abrasive and variable formations. | Series 02 PDC Wireline Core Bits For fast penetration in suitable soft-to-medium and selected medium-hard formations. | Series 03 Diamond Reaming Shells Installed behind the core bit to maintain borehole diameter and drilling stability. |
One system, three product series
Five design advantages behind the complete wireline core drilling system.
01 / 05 Complete Wireline Product RangeBQ, NQ, HQ, PQ, NTW, HTW and customized core drilling sizes are available. | 02 / 05 Diamond & PDC Cutting OptionsChoose hot-pressed diamond matrix or PDC cutter structures according to formation conditions. | 03 / 05 Matching Reaming ShellsReaming shells are available for standard wireline core drilling systems. |
04 / 05 Formation-Specific ConfigurationMatrix hardness, cutter design and waterway structure can be adjusted according to rock conditions. | 05 / 05 OEM ManufacturingCustom size, connection, crown profile, cutter configuration and product marking are available. |
Used across exploration, mineral and geotechnical projects
The wireline core drilling system is suitable for geological exploration, mineral exploration and rock core sampling. Other applications include deep core drilling, geotechnical investigation, hydrological exploration and engineering geological drilling.
01 Geological ExplorationContinuous rock cores for geological surveys and subsurface research. | 02 Mineral ExplorationReliable core samples for mineral resource evaluation and drilling programs. | 03 Rock Core SamplingPreserving rock core structure for accurate laboratory analysis. |
Complete system for wireline core drilling
Each series is designed for a specific role in the wireline core drilling system — from cutting to borehole stabilization.
Hot-Pressed Diamond Wireline Core Bits
Designed for continuous core drilling in geological exploration and mineral exploration. The hot-pressed diamond matrix provides good wear resistance and stable cutting performance.
Different matrix hardness grades can be selected according to rock hardness and abrasiveness.
NQ
NQ3
HQ
HQ3
PQ
PQ3
NTW
HTW
101
PDC Wireline Core Bits
PDC wireline core bits use polycrystalline diamond compact cutters and are suitable for formations where efficient shearing action and fast penetration are required.
Commonly used in geological exploration and rock sampling in suitable soft-to-medium and selected medium-hard formations.
NQ
HQ
PQ
Diamond Reaming Shells
Diamond reaming shells are installed behind the core bit. Their main functions are to:
| Maintain the correct borehole diameter | |
| Provide clearance for the core barrel | |
| Help stabilize the drilling string | |
| Reduce borehole deviation | |
| Allow replacement core bits to pass smoothly |
Standard wireline core bit dimensions
Available for hot-pressed diamond and PDC wireline core bits.
Matching reaming shells for standard models
Reaming shell outside diameters are slightly larger than the corresponding core bit to maintain borehole gauge.
Which core bit should you choose?
Hot-pressed diamond and PDC core bits are designed for different drilling conditions. Final bit selection should be based on rock hardness, abrasiveness, fracture conditions, drilling depth and drilling parameters.
Hot-Pressed Diamond Hot-Pressed Diamond Core BitSuitable when:
| PDC PDC Wireline Core BitSuitable when:
|
Matrix selection for hot-pressed diamond core bits
The matrix hardness should be selected according to rock hardness and abrasiveness.
Soft Matrix For Harder FormationsRecommended for harder formations where faster diamond exposure is required. | Medium Matrix For General DrillingSuitable for general exploration drilling and mixed formations. | Hard Matrix For Softer or AbrasiveRecommended for softer or more abrasive formations where slower matrix wear is desirable. |
Why use a diamond reaming shell?
Reaming shells are a key part of the wireline core drilling system. They help maintain borehole quality and protect downstream equipment.
Maintain Borehole DiameterKeeps the drilled hole at the required gauge. | Improve Drilling StabilityHelps stabilize the core barrel and drilling assembly. |
Reduce Hole DeviationSupports straighter drilling during deep exploration. | Protect Core Drilling EquipmentMaintaining proper hole clearance helps reduce unnecessary friction around the core barrel. |
How to select the right wireline core drilling tools
To recommend a suitable configuration, please provide the following information. Our engineers will respond with a factory quotation within 24 hours.
01 Core Drilling System BQ / NQ / HQ / PQ / NTW / HTW / Other | 02 Rock Formation For example: limestone, granite, shale, sandstone or fractured rock. | 03 Hardness & Abrasiveness Formation hardness and abrasiveness level. |
04 Drilling Depth Planned drilling depth and depth range. | 05 Core Bit Type Required Hot-Pressed Diamond / PDC | 06 Reaming Shell Required Reaming shell required or not. |
Customized wireline core drilling solutions
We can customize the following items according to your drilling project requirements.
Core Bit Size | Inside / Outside Diameter | Matrix Hardness | Diamond Concentration |
PDC Cutter Type | Cutter Quantity | Crown Profile | Waterway Design |
Reaming Shell Diameter | Thread Connection | OEM Marking | Packaging |
Professional drilling tools manufacturer in China
Chenghui Drilling Co., Ltd. specializes in the design, production and supply of PDC drill bits, tricone drill bits, DTH drilling tools and related drilling equipment for customers worldwide. Every drill bit is manufactured and inspected in our own factory, ensuring stable quality, competitive pricing and reliable delivery for international drilling contractors and distributors.
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Need a complete wireline core drilling system?
Share your drilling requirements with our engineers. We will recommend a suitable combination of hot-pressed diamond core bits, PDC wireline core bits and diamond reaming shells, and provide a factory quotation within 24 hours.
| 1. Core Drilling System | 2. Rock Formation |
| 3. Bit Type (Diamond / PDC) | 4. Reaming Shell Required |
FAQ
Downloads
| File | Download |
|---|---|
| CNC-Machining-Center.pdf | Download |
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