Drill Stem Testing(DST) Tools 5"OD x 15000 PSI, 400F, 3 1/2" IF or 3 7/8" CAS

Introudction

The PT-RD Safety valve is a pump through Rupture disk controlled safety valve, a single cycle safety valve for end of test operations as a shut off tool.

The valve can be converted to a PT-RD safety circulating valve is the circulating ports added, or remove the valve mechanism and add the circulating ports can be converted to a circulating valve.

The PT-RD safety valve functions as a safety valve, with pump through capabilities, the tool is functioned by increasing the applied annulus pressure so that the annulus pressure at the tool(hydrostatic plus applied) reaches a predetermined value at which point the RD will burst. When the tool is functioned, it closes a valve below the tool and establishes communication between the annulus and the workstring above the closed valve if the circulating ports added.

If the tool is placed above the gauge carrier, it also acts as a backup shut in tool for the final shut-in, minimizing wellbore storage during final pressure build up.

Technical parameter of RD Pump through Safety(Circulating) Valve

Explosive view:

Advantage of Techcore Oil Tools

Techcore Oil Tools expertise in manufacture of the downhole oil 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, coiled tubing tools for CT operation.

* Techcore insist on superior quality, strong packing & timely delivery.

* Third party inspection is available from SGS, BV, DNV etc.

* Techcore do the best to supply thoughtful and prompt after-sales service to guarantee for the

customers' benefits

The drill stem testing tools are applied in cased hole, open hole and slim hole downhole operation, the DST tools not only used for well testing oepration, but also used for fracturing operation, well completion operation, well flow test operation, and tubing perforating oepraton.

The main DST tool string includes RTTS packer, full bore retrievable circulating valve, full bore retrievable safety joint, select tester valve, downhole tester valve, omni valve / multi-cycle circulating valve, hydraulic jar, radia shock absorber,Vertical shock absorber, RD safety circulating valve, high pressure retrievable packer with bypass, IPO valve, tubing string test valve, and so on.

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