Stop Rings Inner Tube Assembly Wireline Core Barrels Bq Nq Nq2 Nq3 Hq Hq3 Hqtt Pq Pq3

Wireline core drilling is a kind of don't need to lift the drill rod, direct gain rock cores drilling tool. It includes: core barrels assembly, overshot, drill rods, wireline winch, hoist plug, foot clamp, circular wrenches and other accessories. It has high drilling efficiency, high bit coring rate, long working life, low labor intensity. With the more deep drilling depth, its advantage is more obvious.

The head assembly provides: latching and pivoting spearpoint mechanisms to allow insertion and retrieval of the inner tube assembly, a bearing assembly to allow the inner tube to remain stationary and avoid sample damage while drilling, fluid pressure operating indications and fluid control valves.

All head assemblies incorporate a shut off valve assembly which provides a fluid pressure signal to the drill operator when the valve members are compressed, indicating a full or blocked inner tube.

Our head assembly features long life span, good compatibility with parts like inner tube and outer tube from other vendors, and availability in all spare parts.

Wireline double tube core barrels are available in BQ NQ HQ PQ SQ standards, which is composed of outer tube group & inner tube group. However, diamond bit & reaming shell are not included when pricing.

Outer tube group is composed of locking coupling, adaptor coupling, landing ring, outer tube, stabilizer, reaming shell & bit. Outer tube is available in 3M & 1.5M.

Inner tube group is composed of head assembly, inner tube, stop ring, core lifter, core lifter case. Inner tube is available in 3 & 1.5M.