Api Standard Overshot Assembly Hq Core Barrel For Surface Wireline Drilling

api standard overshot assembly double tube mining drilling tools hq core barrel for surface wireline drilling

>> Introduction

A wireline coring system includes core barrel assembly and overshot assembly.The core barrel assembly is composed of inner tube group and outer tube group.Inner & outer tubes have standard length of 1.5 meters and 3 meters.

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.

The core barrel assembly is composed of the inner-tube group and outer-tube group.The inner-tube group is composed of:Head Assembly,Inner Tube,Core Lifter Case,Core Lifter,Stop Ring.
The inner-tube group collects the core sample during the drilling process and is independent of the outer-tube group. The outer-tube group is composed of the remainder of the core barrel components:

Locking Coupling,Adapter Coupling,Outer Tube.
The outer-tube group always remains at the bottom of the hole and houses the inner-tube group during the drilling process.

>> HQ Head Assembly structure diagram

>> Package & Shipment

>> About Us

JCDRILL provide users high quality Mining & Drilling solutions,we always focus on the strategic conception of "Survival by quality, Development by credit''. We have specilized in research, development and produce of rock blasting drilling rig, water well drilling rig, diamond core drilling rig, anchor drilling rig, and relative accessories & drilling services. constantly provide professional drilling solutions for all customers with our advanced technology, excellent equipment, strict testing means and good service network, which establish our brand "JCDRILL" a good image of market, now,we products account for 50% of domestic market and have been export to more than 40 countries, and we awarded ISO9001: 2000 in November, 2002. With excellent technology and solid market service capabilities, we have both a sound marketing system and excellent service support system, which help us win confidence of customers both at home and abroad,we can provide drilling rig users with high quality professional air compressor solution and relative after-sales service also.

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Api Standard Overshot Assembly Hq Core Barrel For Surface Wireline Drilling Images