APR Drill Stem Testing Tools For Slim Hole Downhole Testing

The Drill Stem Testing Tools / DST tools manufactured by Techcore Oil Tools is full bore type and annular pressure operated downhole testing tools as per Halliburton tools, the DST tools are 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 Inconel 718
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.

Specification of the Drill stem testing tools string

About Techcore Oil Tools

Techcore Oil Tools was rebuilt with ZZ TOP Oil Tools in 2016 to expand the production floor and products range. Techcore is expertised in manufacture of the Drill Stem Testing Tools for more than Ten years, the professional Reserch and Development (R&D) department improves the advanced technology in design of the Drill stem testing tools for well testing service.

Techcore oil tools is certified by ISO, all the manufacture is strictly conformed with ISO system including Quality Control Management, Environmental Management and Occupational Health & Safety Management. For each downhole tools and each parts, we make the trace-ability from the raw material till the products. And any TPI inspection are available with us from SGS/BV/ TUV /DNV etc..

Techcore designs and chooses the raw material of DST tools according to the customers' oil well condition, and make all our effort to supply the cost effective well testing tools to satisfy the customer, and improve the test tools to meet the industry’s demand for ultra-high pressure and temperature downhole operation.

Continuous after sales service

Techcore provides the prompt after-sales service to our customers to guarantee your benefits. For the complete downhole tools, we provide the free training in our factory, and if you need the site instruction, we can appoint our technical engineer to your site for the training.