8" Super saftey valve
Drill stem testing tools - SSV
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.
Specification
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 |
Cutting the tubing
our facility
ZZ Top Oil Tools Co.,Ltd, with the professional technical team, specialized in providing cost-effective oilfield
equipment, and at the moment ZZ TOP invested in two sub-factories, one is for Drill stem testing tools
and some downhole tools, The other one is for wellhead equipment.
As one group, ZZ TOP provides the clients highly efficient & expertized 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.
