Core Barrels

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Product Description

Technical Features：

The Core Barrel is mainly used to obtain core in oil drilling well or in geological prospecting. It can assemble one to three inner and outside core barrels per a trippingThe tool is available to soft, medium, hard and mix stratum.

Main Parameters

Type	4 3/4″×2 5/8″	5 1/4″×2 3/4″	6 3/4″×4″	7 1/8″×4 1/8″
Barrel Length ft	30′ /60′ /90′	30′ /60′ /90′	30′ /60′ /90′	30′ /60′ /90′
Outer tube（OD×ID）	4 3/4″×3 5/8″	5 1/4″×4″	6 3/4″×5 3/8″	7 1/8″×5 11/16″
Inner tube（OD×ID）	3 1/4″×3 7/8″	3 1/2″×3″	4 3/4″×4 1/8″	5″×4 7/16″
Top thread	3 1/2IFBOX	3 1/2IFBOX	4 1/2IFBOX	4 1/2IFBOX
Bit size in	5 7/8″~6 1/2″	5 7/8~6 1/2″	7 1/2″~9 5/8″	8 1/2″~9 5/8″
Core OD in	2 5/8″	2 3/4″	4″	4 1/8″

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