DST super safety valve SSV with remote control panel

Model: TOP-SSV-02
Place of Origin: Shaanxi,China (Mainland)
Working pressure: 105Mpa
Working temperature: 400F
H2s: As per NACE MR0175
Material: Inconel 718
Type: Surface control
Size: 8"
Condition: Stock/unused
Operation: Remote control
Application: Well testing service
Working condition: Full H2S
Special Groups: Case hole DST
DST Tools
DST Super safety valve
drill stem testing SSV
drill stem testing
super safety valve

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Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:9000.0 USDProduction Capacity:1set/month
Trade Term:FOB,CFRPacking:plywood
Payment Terms:L/C, T/TDelivery Date:90days
Min. Order:1 Set/Sets
Means of Transport:Ocean, Air, Land

DST super safety valve SSV with remote control panel

Downhole DST Super safety valve SSV with remote control

Super safety valve Halliburton type


DESIGN FEATURES

The Super Safety Valve is controlled by two hydraulic lines and contains a chemical injection port. It is designed to 

close by spring force but has a nitrogen charge chamber to quicken the closing time.  This feature gives the valve the

 ability to cut wireline and coiled tubing without the addition of balance line pressure.  The valve is held open by 

maintaining hydraulic control pressure on the control line.  The nitrogen charge chamber and the balance line 

chamber are the same chamber.  The nitrogen pressure acts directly on the operating piston and a floating check

 valve keeps the nitrogen from escaping from the chamber into the balance line.  The check valve floats on the surface

 of the water (or hydraulic fluid) as fluid is pumped into the chamber. When the fluid is removed, the floating check valve

 sets down on the seat and seals the nitrogen charge in the chamber.

 

No

Specification

8"

1

O.D.

203.2mm

2

Bore Diameter

76.5mm

3

Length

2855.5mm

4

Working pressure

103.5Mpa

5

Internal pressure strength

178.3Mpa

6

External pressure strength

257.8Mpa

7

Tensile strength

6299KN

8

Torque strength

137.6KN.m

9

Service

H2S,NACE MR0175

10

Working temperature

-29oC+204oC

11

Connection thread

5 3/4-4AS.B 5"-4ACME.B

 

The main function of remote control  system is to control the downhole safety valve in case of emergency 

situation to shut off the safety valve

The system contains Three loop, one loop(1) connects with control line in safety valve,one loop(2) connects with

balance line, and rest loop(3) connect with a fusible plug

In case of fire, the temperature on site over 210F, the fusible plug melt, control line loop cut off, the pressure in system released, push the ball valve in safety valve closed to prevent well in safety situation.

Or if other unexpected happen need to close the well, just pull off the handle of emergency shut down valve, the hydraulic oil will push safety valve piston forward up, the ball valve will be closed by spring, to prevent the well.

Or when do coiled tubing testing, extra force need to be added to shut down safety valve ball valve, the loop 2 will in

work

There are other option's operation for such system depended on the purpose of testing.

 

 


DST super safety valve SSV with remote control panel

Downhole DST Super safety valve SSV with remote control

Super safety valve Halliburton type


Category: Super Safety valve DST tools

Related Category: Gauge Carrier DST  Rupture Disc Sampler DST  well testing safety valve  Cased hole drill stem testing tools  Open hole drill stem testing tools 


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