Wireline-Retrievable Safety Valves

STAR Wireline-Retrievable Safety Valves offer premium features similar to a tubing retrievable safety valve and are landed in safety valve landing nipples that are equipped with a control line connected to the surface control system. This configuration enables the safety valve to be easily retrieved for repair or maintenance. When assembled to a wireline lock, the assembly can be installed in a safety valve nipple. Hydraulic control line connects the safety valve nipple to the surface emergency shut-down system. Loss of control line pressure will close the valve and shut-in the well. These wireline valves are premium valves due to the use of non-elastomeric seal material, metal-to-metal housing threads, high tensile strength metallurgy, and unique HP/HT packing and piston seal stacks when required by the application. These design features are imperative when considering applications for big bore, high temperature, high pressure, extremely corrosive, and hostile.

Features and Benefits

Equalizing feature
Large bore design
Non-elastomeric dynamic seal assembly
The lock profile enables completion optimization without restriction to standard sealbore sizes
Easy field operation
10,000-psi working pressure

Applications

Production and injection wells

Technical Data

Tubing Size Tubing Weight Valve ID Nipple Seal Bore
in mm Ib/ft kg/m in mm in mm
2 3/8 60.3 4.6 6.85 0.75 19.05 1.875 47.63
4.7 9.52 0.75 19.05
2 7/8 73.0 6.4 9.52 1.13 28.52 2.312 58.72
6.5 9.67 1.13 28.52
3 1/2 88.9 9.2 13.69 1.52 38.61 2.812 71.42
10.3 15.33 1.52 38.61 2.750 69.85
4 101.6 10.9 16.22 1.75 44.45 3.312 84.12
11 16.37 1.75 44.45
4 1/2 114.3 12.6 18.75 2.12 53.85 3.812 96.82
12.75 18.97 2.12 53.85
15.2 22.62 1.89 48.00 3.688 93.68
5 1/2 139.7 17 25.30 2.56 65.02 4.562 115.87
23 34.23 2.25 57.15 4.437 112.70
7 177.8 35 52.09 3.38 85.85 5.875 149.22