Hydraulic double acting Type Shock sub

Short Description:

The Shock absorber is used for reducing vibrations caused by hard formation drilling and keeping the drill bit firmly on the bottom, so that it helps to reduce drill string connection fatigue and prolong drill string life.

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Product Detail

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Product type

MECHANICAL-HYDRAULIC SHOCK SUB
mechanical-hydraulic shock absorber is a new type double acting shock absorber, it absorbs jumping and shaking of drilling tools through compressed energy storage from two kinds of damping elastic elements which are disc spring and silicone oil, it has advantages of good maintainability, high load resistance and long service life etc. It can be suitable with different formation and provide the best protection for drill bits and drilling tools, and High temperature products (180oC) can also be provided according to user’s requirement.

DOUBLE WAY HYDRAULIC SHOCK SUB
double way hydraulic shock absorber is a kind of shock absorber which can slow down or eliminate shock both in vertical and axial direction. This tool can keep the normal bit pressure and torque, therefore it can reduce the damage of drill bit, drilling tools and ground equipment due to shock, to achieve the purpose of improving drilling rate and reducing the drilling costs.

MECHANICAL SHOCK SUB
shock absorber is a shock tool act as vertical absorbing function when drilling with cone bit or abrasive coring bit. It can absorb or slow down vertical shocking and impact load of drill stem while drilling, thereby keep normal drilling pressure, prolong service life of drill bit, protect drilling tools and surface equipment, decrease drilling cost and increase drilling efficiency.
shock absorber use butterfly spring as elastic element, this is quite different with hydraulic shock absorber which use silicon oil etc., As working medium, its working property do not effect by working circumstance, it has the advantages of simple structure, reliable working, convenient operation, maintenance, good shock absorption, long service life and high property.

HYDRAULIC SHOCK SUB
hydraulic shock absorber can use its inner compressible liquid to absorb or reduce impact and shock load on drill bit and drilling tools whiledrilling, so it is a kind of tool which can protect drill bit teeth, bearings and drilling tools, to prolong the service life of drill bit and drilling tools.

Technical parameter

OD	ID	Tool Joint	Max. Tensile Load	Max. Drill Pressure	Max. WorkingTorque	Max. Stroke
OD	ID	Connection	(Lbf)	(Lbf)	(Lbf-ft)	(in)
4 3/4''	1 1/2''	3 1/2 REG	220,320	89,920	7,370	4''
6 1/4''	2''	NC46	337,230	134,890	10,840	4 3/4''
7''	2 1/4''	NC56	337,230	134,480	10,840	4 3/4''
8''	2 13/16	2 13/16	449,640	157,370	14,450	5 1/2''