Sleeve Type Drain Valve Downhole Oil Tools Drill Stem Test 15000 PSI 105 Mpa

Sleeve Type Drain Valve Downhole Oil Tools Drill Stem Test 15000 PSI 105 Mpa

Introudction of Sleeve Type Drain Valve

When the drill stem testing finished, the sleeve type drain valve as the part of the DST work string, is used to drain the volume fluid and release pressure.The drain valve is composed of a ported body, sliding sleeve,and rotating nut. Before running in well,the ports in the sleeve of drain valve will be sealed with two sets of O rings, and the sliding sleeve and rotating nut are locked by two screws in order to keep the sliding sleeve tighten in course of downhole operation, attach drain collar after testing finished, rotate the rotating nut to make the sliding sleeve moves up until when the ports in the sleeve are aligned with the ports in the body of the tool, the fluid may be drained.

Maintenance Attention for the sleeve type drain valve

1. After finishing test each time, the tool should be taken apart completely and washed clearly, replacing all the O-rings and damaged Back-up Rings. Checking all the sealing surfaces and threads, all the damaged parts should be replaced because that they would have bad influence upon the tool.

2. Make sure you have an instruction manual, a maintenance check sheet, and the appropriate assembly drawing at your workstation before beginning the job.

3. Make sure use the high temperature o-ring in the high temperature well and H2S condition.

Technical parameter of DST Slim Hole Drain Valve

Sleeve Type Drain Valve

5" x 15000psi for cased hole DST Operation

3 7/8" x 15000psi for slim hole DST Operation

Techcore Oil Tools has the professional Reserch and Development (R&D) department with skilled engineers whom were committed to the design of downhole tools for more than ten years and Techcore is equiped with advance equipments to manufacture the oil downhole tools and its related parts in high quality.

* 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 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.

Welcome to contact us for more information!

ZZ Top Oil Tools Co.,Ltd as head office registered in Xi’an City in 2010, and in 2016, ZZ TOP OIL TOOLS enlarged the downhole oil tools factory under the Brand - TECHCORE in Baoji, which engages in designing and manufacturing the downhole oil tools including DST tools, Coiled tubing tools etc.

As one group, ZZ TOP provides the clients highly efficient & expertise service as well as more comprehensive products to meet the customers' requirements during the work, and insists on "Traceability, Serialization" for each tools and related parts

Equipments List

Techcore specialized in design, manufacture and sales of the oil well downhole tools as below:

* Drill stem testing tools for cased hole,  open hole and slim hole:

Retrievable packer, circulating valve,safety joint, downhole tester valve,LPR- N Valve, multi-cycle circulating valve, hydraulic jar, shock absorber, RD safety circulating valve,CHAMP packer, IPO valve, tubing string test valve, drain valve,RD sampler, super safety valve etc.

* Coiled Tubing Tools: Double slip connector, roll on connector, roll on x thread connector, double flapper check valve, motor head, dual function circulating valve, hydraulic jar, fishing tools etc.

* Perforating tools: Various perforator & perforating gun system, Shaped Charge Body

 *Oil well completion tools include: Subsurface safety valve, wireline retrievable subsurface safety valve, single string production packer, dual strings production packer, ESP packer, mechanical set packer, permanent packer, compensation device, bridge plug, sliding sleeve, nipples etc. 

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