Drill Stem testing tools string(DST tools)

Price: 2000.0~20000.0 USD
Trade Term: FOB
Payment Terms: T/T,L/C
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Basic Info.
  • Standard: NAC 
  • Material: AISI41XX/Inconnel 
  • Condtion: Stock/New/On shelf 
  • Working pressure: 105Mpa 
  • Working Temperature: 400F 
  • Operation: Annlar pressure operated 
  • Type: Full bore 
  • Size: 5" OD for 7"/9 5/8" 13 3/5" casing 
  • Model No.: Drill Stem Testing tools(DST) String 
  • Place of Origin: Shaanxi  
  • Min.Order: 1 Set/Sets
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 2 string/month
  • Packing:plywood
  • Delivery Date: 45days
General Information
The DST tools manufactured by ZZ Top is full bore type and annular pressure operated, applicable for 4 1/2" to 20" casing, the tools OD is 3 7/8" and 5", Working pressure upto 105Mpa, working temperature upto 425F.
As per NACE MR0175 standard, the materials ZZ Top used is AISI41XX Alloy steel with hardness in 30HRC in average but also consider the high working pressure to choose high hardness material used in Critical parts i.e. Nitrogen Case, for ball valve, the material is Inconnel 718 which import from USA directly.
And for strict working condition such as high H2S, CO2, Acid and HCL, we also suggest the material Inconnel or other high Nickel alloy steel.
For other redress parts like O rings, rupture discs are also optional from US parker and Fike USA, and as per our test Chinese are also in good performance, those parts can be availably once request.
Regarding DST tools, the maintenance is very important for each well running, replace all O rings after a job is very necessary to keep tools in well condition, ZZ Top also provide DST maintenance training in user site and in factory.
ZZ Top is running under ISO9001:2008, and all tools were certified by SGS in full process, from material to final function testing.

Tools features:
1. Full bore type which can be available for slickline/wireline testing.
2. Annular pressure operated.
3. Short time Maintenance.
4. High pressure and high temperature working condition.
5. Suitable for H2S, CO2, HCL, Acid serivce

Tools Working Case:
1. Colombia- Normal working service, Gas sealing thread perfect.
2. Kuwait-High H2S percetage, High temperature
3. Austrilia-Normal Working service
4. Brazil: Offshore working, Super safety valve ncessary
5. Lybia: Normal service.

Drill Stem testing tools string(DST tools)Drill Stem testing tools string(DST tools)
Drill Stem testing tools string(DST tools)Drill Stem testing tools string(DST tools)


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Ms. Elaine
Tel: 86-29-81779342
Mobile: 13629207466
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XI'AN ZZ TOP OIL TOOLS CO.,LTD
RM22808,SHANGPIN INTERNATIONAL,NO.88GAOXIN ROAD,HI-TECH ZONE, Xi'an, Shaanxi, China (Mainland)
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