Cased hole DST tool Vertical shock absorber

Brief introduction

The Vertical Shock Absorber is designed to protect pressure measuring equipment from vertical shock loads 

transmitted through the workstring by the firing of tubing-conveyed perforating guns. The Vertical Shock Absorber can 

be used to protect other sensitive components in the tool string.

Operation

The Vertical Shock Absorber is normally run below the packer and is always run between the gauge carrier and the 

tubing-conveyed perforating guns. It is recommended that the Vertical Shock Absorber be run in conjunction with a drag block assembly for effective shock absorption.

A 3 3/8-in. OD Vertical Shock Absorber is avaliable with a blank ID. When run in theworkstring, this absorber is located 

below the TCP guns and above the gauges.

Technical Parameter

Material Traceability SGS

Testing Equipment

ZZ TOP OIL TOOLS is the professional manufacturer for the drill stem testing tools and surface testing equipment. All the DST tools are conformed with NACE MR 0175 with traceability,and the DST tools can be worked in H2S & CO2 above 175 F and full H2S, also with the skilled and experienced engineers, we can design the drill stem testing tools as per customer's well condition. Moreover, we supply the training in our factory and operation instruction at the well site. The DST tools are exported to USA, Colombia, India, Pakistan, Iran, Brazil etc. and enjoy the good reputation from the customers.

To shorten the delivery time, we proceeded the DST Tools in stock:

Packer,circualting valve,select tester valve,APR N-valve,OMNI valve,Hydraulic Jar,Tubing string tester

1. Full bore Packer, 7" Casing, working pressure 70Mpa, Working Temperature 400F, Connection: IF, 4set

2. Tester valve, 5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4 sets

3. Hydraulic Jar,5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4sets

4. Rupture disk Circulating valve, 5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4sets

5. Flowhead (surface test tree), 3 1/16", working pressure 70 Mpa. 1set

Should you have any interest or inquiry on the Drill stem testing tools, contact us freely.