Wireline Core Barrel

Name: China Wireline Core Barrel Manufacturers Suppliers Factory - Wireline Core Barrel Price - Gold Drills Equipment
Brand: Gdrills
SKU: 264773912

Available model: Q series (BQ, NQ, HQ, PQ), Q2/QTK series, Q3 series(NQ3, HQ3, PQ3), QU series (BQU, NQU, HQU), TW series (BTW, NTW, HTW)
Tube type: standard double tube barrel, thin Kerf barrel, triple tube barrel
Gdrills supplies a wide range of wireline core barrels in various sizes and configurations to meet the diverse needs of mineral exploration, geo-technical investigations, and underground drilling projects. Our core barrels are designed for high performance, durability, and maximum core recovery, even in the most challenging drilling conditions.

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General Introduction

In diamond core drilling, a core barrel drilling is a crucial component of the drilling system used to extract cylindrical rock samples (core) from the earth. It is part of the wireline coring system and is designed to hold and protect the rock core as it is drilled.

A core barrel consists of an outer tube, which rotates and cuts into the rock, and an inner tube, which holds the core sample securely. At the bottom, a diamond-impregnated core bit cuts through the rock, while a core lifter and core lifter case help retain the core when the inner tube is pulled to the surface. In wireline drilling, the head assembly connects to a wireline system, allowing for efficient retrieval of core samples without removing the entire drill string.

Core barrels are available in various sizes, such as NQ, HQ, PQ, and BQ, depending on the required core diameter.

Specifications

Q Series Core Barrels (Standard double tube)

Item No.	Core Dia.		Hole Dia
Item No.	mm	inch	mm	inch
BQ	36.4	1.433	60	2.362
NQ	47.6	1.874	75.7	2.98
HQ	63.5	2.5	96	3.78
PQ	85	3.346	122.6	4.827

Q2/QTK Series Core Barrels (Thin Kerf)

Item No.	Core Dia.		Hole Dia
Item No.	mm	inch	mm	inch
NQ2/NQTK	50.6	1.992	75.7	2.98

Q3 Series Core Barrels (Triple tube)

Item No.	Core Dia.		Hole Dia
Item No.	mm	inch	mm	inch
NQ3	45	1.772	75.7	2.98
HQ3	61.1	2.406	96	3.78
PQ3	83	3.268	122.6	4.827

QU Series Core Barrels (Standard double tube)

Item No.	Core Dia.		Hole Dia
Item No.	mm	inch	mm	inch
BQU	36.4	1.433	60	2.362
NQU	47.6	1.874	75.7	2.98
HQU	63.5	2.5	96	3.78

TW Series Core Barrels (Standard double tube)

Item No.	Core Dia.		Hole Dia
Item No.	mm	inch	mm	inch
BTW	42	1.654	60	2.362
NTW	56	2.205	75.8	2.984
HTW	71	2.795	96	3.78

Choose the Right Core Barrels

Item	Tube Type	Advantages	Application
BQ Core barrels	Standard double tube	Smallest size, lower core recovery.	Surface drilling. Used for deep drilling in hard rock formations.
NQ Diamond core Barrels	Standard double tube	Good balance of sample size and drilling speed.	Surface drilling. Most commonly used in mineral exploration;
HQ Core barrels	Standard double tube	Preferred when high-quality, larger core samples are required.	Surface drilling. Used in fractured formations.
PQ Core barrels	Standard double tube	Largest core size	Surface drilling. Best for soft formations or when maximum sample is needed.
Q2/QTK Core barrels	Thin Kerf	Better core retention than standard Q-series	Surface drilling. Used in weak, broken, or soft formations where core loss is a concern
NQ3 Core barrels	Triple tube	Provides better core protection than standard NQ. Ideal for moderately fractured formations.	Surface drilling. Fractured rock, soft formations, clay-rich zones
HQ3 Core barrels	Triple tube	Enhances core recovery in highly fractured or soft rock. Reduces core loss.	Surface drilling. Highly fractured rock, weak formations
PQ3 Core barrels	Triple tube	Best for soft and weakly cemented formations. Allows recovery of large, undisturbed core samples.	Surface drilling. Soft rock, weakly cemented formations, environmental studies
NQU Core barrels	Standard double tube	Provides good recovery in confined spaces.	Underground drilling, confined spaces
BQU Core barrels	Standard double tube	High durability, good recovery in tight spaces	Underground drilling Smaller-diameter underground core drilling
HQU Core barrels	Standard double tube	Maximum sample retention, excellent for deep drilling	Underground drilling Large-diameter underground core drilling
NTW Core barrels	Standard double tube	Compared to BTW, NTW offers improved core retention in fractured formations. Better recovery, balanced cost and efficiency	Surface drilling. Ideal for mineral exploration and geo-technical assessments.
HTW Core barrels	Standard double tube	Provides the largest diameter core for detailed geological analysis. Ensures high recovery in formations prone to crumbling.	Surface drilling. Best suited for soft to moderately hard formations, allowing the collection of larger core samples for detailed geological and geo-technical analysis
BTW Core barrels	Standard double tube	Best for deep drilling, and hard rock formations. High penetration, lower cost, minimal deviation	Surface drilling. Suitable for hard rock formations and deep drilling, often used in mining exploration where smaller diameter holes are needed.

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Conventional Diamond Core Barrel

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