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 PDC Reamer

PRODUCT PARAMETERS

Product Type: PDC-cutter drilling reamer

Body Material: 4145H high-strength torsion-resistant alloy steel (adapted to the load conditions of drilling reaming)

Cutter Material: Polycrystalline Diamond Compact (PDC) (features high hardness and low wear)

Outer Diameter Specifications: Matched to wellbore sizes, e.g., 8-1/2″ (215.9mm), 9-7/8″ (250.8mm), 12-1/4″ (311.15mm) (customizable reaming sizes)

Reaming Range: Capable of expanding wellbore diameter by 10%-30% (adapted to reaming needs of different drilling stages)

Blade Structure: 2-blade/3-blade streamlined blades (equipped with built-in flow channels to ensure drilling fluid circulation and cuttings removal efficiency)

Wear-resistant Treatment: Tungsten carbide wear-resistant coating on blade surface (enhances tool wear resistance)

Compatible Drilling Tools: API standard drilling drill pipe/drill collar (compatible with mainstream drilling tool strings)

Applicable Formation: Soft to medium-hard formations (clay, sandstone, shale, weakly cemented gravel layers)

Applicable Working Conditions: Directional drilling wellbore reaming, wellbore trimming before casing running, conventional drilling wellbore shaping

Connection Thread: API standard drill pipe thread (e.g., 4-1/2″ REG, ensuring tool connection reliability)

Compliance Standard: Conforms to API 7-1 drilling tool industry standard and PDC reamer tool technical specifications

Description
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Description

1. Material & Structure

Body: Solid steel or welded matrix body.

Cutting elements: PDC cutters (Polycrystalline Diamond Compact) arranged on blades or slots.

Surface protection: Tungsten carbide hardfacing and wear-resistant spray coating.

Typically designed with 3–6 blades, optionally equipped with replaceable nozzles.

2. Application
Ideal for soft to medium-hard formations such as mudstone, sandstone, shale, and limestone.
Commonly used for:

HDD back reaming

Water well and geothermal well hole enlargement

Mining and geological drilling
Features: High penetration rate, long service life, no moving parts, and low maintenance cost.

3. Specifications

Diameter range: φ133mm–φ660mm (5 1/4″–26″)

Connecting thread: API 2 7/8″–6 5/8″ REG

Customizable blade angles and cutter layouts.

4. Example Models

ModelDiameterBlade CountFormation
PR-171171 mm3 bladesSoft to medium-hard
PR-215215 mm4 bladesMedium-hard
PR-311311 mm5 bladesMedium-hard to hard
PR-508508 mm6 heavy-duty bladesHard / water well reaming

FAQs

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