The critical parts for all DST tools can be available in a short time also including the redress kits in order to keep tools running in good condition.

Redress kit:
1. O rings(US Parker or Chinese)-Viton
2. Backup seals
3. Tension sleeve
4. Rupture Discs
5. Wiper
6. Packer Element
7. Springs
8. Mechanical Slips
9. Holddown slip body
10. Operate Pin
Critical Parts:
1. Ball valve Assy
2. Mandrel
3. Catridage
4. Nitrogen House
5. Nipple
6. Couplings Top and bottom
7. Ball valve case
8. Ball valve holder
9.Metering sleeve
10. Metering cone

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.