Safety Alert
Safety Alert 92 - Testing of Subsurface Safety Valves
Safety Alert 92 - Testing of Subsurface Safety Valves
- BSEE
- Safety Alert
- BSEE Safety Alert 92
- Inspection and MaintenancePressure Systems
- Mechanical failureWell integrity
- Valve
- Functional testing
- Upstream oil and gas
- Laboratory
Summary
This alert describes occasional laboratory test failures of two sizes of tubing-retrievable, surface-controlled subsurface safety valves for high-flow-rate gas wells. Accumulated manufacturing tolerances caused internal parts to grab. It records tightened manufacturer specifications and case-by-case well reviews, and highlights the advisability of additional laboratory testing to verify operation against design.
Classifications: Mechanical failure; equipment failure.
Classifications: Well integrity; well life cycle integrity.
Classifications: Valve; valves.
Classifications: Functional testing; function test.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Laboratory.
BSEE Safety Alert 92. Themes: inspection and maintenance, pressure systems.