1111_1 — Presentation — PTC — New Gas-Lift Valve.pdf

New Requirements to Gas Lift Valves

31st Gas-Lift Workshop
Houston, Texas
February 4 – 8, 2008

Øyvind Stokka – Petroleum Technology Company (PTC)
Erling Kleppa – Petroleum Technology Company (PTC)

Why new requirements?

Most operators will not qualify the standard Gas Lift Valve as a barrier element

WHY?

•The traditional valve has not been taken through a qualification program as for well barriers
•The other items in the well barrier envelope is normally subjected to stringent test requirements

New requirements

The industry (authorities and operators) identifies a need for new qualification requirements based on the desire for higher performance levels

PREFERRED PROCESS

•Similar process as the development of ISO 10432:2004 for Downhole Safety Valves (often referred to as the “Rogalands test”)
•The traditional gas lift valves failed to meet the new requirements

HOW?

MERGER OF ISO 14310 (Packers and bridge plugs) AND ISO 17078 – 2 Gas lift valves

CONCLUSION
•New Gas Lift Valve technology needed to be developed