Full H2S Select Tester Valve Dst Well Test Tubing Tester Valve Cased Hole

Introudction of Tubing tester Valve

The Tubing Tester valve is a full opening test valve that allows the drill stem test string to be pressure
tested at any depth while running in the hole.The tubing tester valve is operated after it is stung into a permanent packer or a retrievable packer is set. The tubing tester valve primarily consists of flapper valve and spring, shear pin section and locking dogs.

Two sized of the tubing tester valves are available : 3 7/8" for slim hole and 5" for the cased hole, and the valve is made of alloy steel and Inconel steel can be served in standard DST operation and Full H2S well testing service

Specification of Tubing Tester Valve

What kind of test will done to check the tubing tester valve

Test Condition:

• No sands and dust in the place of production depositary.
• Temperature:0~35℃

Test requirment:

* Inner sealing Testing

Attach testing caps on top and bottom of tools, bleed off air in the tool by increasing pressure from bottom, increasing pressure upto 105Mpa gradually, Closed the check valve on testing cap, keep the pressure 15 minutes, check if pressure drop, leakage.

* Flapper valve sealing testing

Attach testing caps on top and bottom of tools, bleed off the air in tools, increase pressure gradually upto 105Mpa,keep pressure for 15 minutes.

* Tools function Testing

Install 6pcs shear pins into tool, increasing pressure from circulating port in pressure housing upto 22.2+-1Mpa, shear pins sheared, the mandrel move upward, increasing pressure again upto 70Mpa, keep the pressure, the flapper valve open fully, locking block locked, check if pressure drop, leakage.

Flapper valve sealing testing of the tubing tester valve



Inner sealing test chart of tubing tester valve



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.

We approach every client’s enquiry with meticulous attention to technical specifications, and a high level of appreciation for their urgency.

Downhole Oil Tools Tubing Tester Valve Cased Hole Select Tester Valve​

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. 

DST Tools Warehouse