December 2012
Supplement
Design and development considerations for HPHT subsurface safety valves
Although the industry considers 15,000 psi and 350°F to represent “high-pressure/high-temperature” (HPHT) conditions, these are rapidly becoming the category’s lower limits. Since subsurface safety valves are the emergency fail-safe flow-controlling devices within a completion, they must have superior performance and reliability throughout a well’s life. Additional validation techniques must be employed to ensure robust, fit-for-purpose performance early in the development process.
