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 butalso consider the high working pressure to choose high hardness material used in Critical parts i.e. Nitrogen Case,for ball valve, the material is Inconel 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 available 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.
The DST tools in ZZ Top include:
Name | Size | Specification |
RTTS Packer | 4 1/2"-20" Casing | 70Mpa, 400F |
CHAMP IV Packer | 7"-13 3/8" Casing | 70Mpa,400F |
Champ XHP Packer | 7"-13 3/8" Casing | 105Mpa, 400F |
RTTS Circulating Valve | 4 1/2"-20" Casing | 70Mpa, 400F |
IPO Circulating Valve | 5" OD | 105Mpa 400F |
Hydraulic Circulating Valve | 3 7/8" and 5" OD | 105Mpa 400F |
RD Safety Circulating Valve | 3 7/8" and 5" OD | 105Mpa, 400f |
RD Circulating Valve | 3 7/8" and 5" OD | 105Mpa, 400f |
OMNI Circulating Valve | 3 7/8" and 5" OD | 105Mpa, 400f |
RTTS Safety Joint | 4 1/2"-20" Casing | 105Mpa, 400F |
Round mandrel slip joint | 3 7/8" and 5" OD | 105Mpa, 400f |
TST Valve | 3 7/8" and 5" OD | 105Mpa, 400f |
RD Sampler | 3 7/8" and 5" OD | 105Mpa, 400f |
Drain valve | 3 7/8" and 5" OD | 105Mpa, 400f |
LPR-N Valve | 3 7/8" and 5" OD | 105Mpa, 400f |
Select tester valve | 3 7/8" and 5" OD | 105Mpa, 400f |
Hydraulic Jar | 3 7/8" and 5" OD | 105Mpa, 400f |
Gauge Carrier | Design as per Gauges | 105Mpa, 400f |
Radial shock absorber | 7"Casing | 105Mpa, 400F |
Vertical Shock Absorber | 5" OD | 105Mpa, 400F |
MFE | 5" OD | 70Mpa, 400F |
VR Safety Joint | 5" OD | 70Mpa, 400F |
Hollow plug Impact reversing sub | 5" OD | 70Mpa, 400F |
Acc. For DST tools
Name | Size | Specification |
Cross over subs | 2 7/8"EUE, 3 1/2" IF, 3 7/8" CAS, 4 1/2" IF, 3 7/8" CAS, ACME. | |
Spacer Pup Joint | As per request | |
Radioactive Maker sub | As per request | |
Wireline reentry Guide(Mule shoe) | As per request | |
Testing Caps | As per request | |
Special Tools | As per request | |
Redress kits for each tool | As per request |
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
Full bore Packer, 7" Casing, working pressure 70Mpa, Working Temperature 400F, Connection: IF, 2. Tester valve, 5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4 sets
Hydraulic Jar,5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP,
Rupture disk Circulating valve, 5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP,
Flowhead (surface test tree), 3 1/16", working pressure 70 Mpa.
Should you have any interest or inquiry on the Drill stem testing tools, contact us freely.
