scope:

PURPOSE

The purpose of the Recommended Practice is to describe the components and the engineering principles for the design calculations, installation, and operation of subsurface safety valve systems. This document is intended for use by both engineering and operating personnel.

CLASS OF SERVICE

SSSV equipment installed in accordance with this RP shall conform to one or more of the following classes of service:

Class 1. Standard Service.

This class of SSSV equipment is intended for use in oil or gas wells which do not exhibit the detrimental effects caused by sand or stress corrosion cracking.

Class 2. Sandy Service.

This class of SSSV equipment is intended for use in oil or gas wells where a substance such as sand could be expected to cause SSSV equipment failure. Class 2 SSSV equipment must also meet the requirements for Class 1 service.

Class 3. Stress Corrosion Cracking Service.

This class of SSSV equipment is intended for use in oil or gas wells where corrosive agents could be expected to cause stress corrosion cracking. Class 3 equipment must meet the requirements for Class 1 or Class 2 and be manufactured from materials which are resistant to stress corrosion cracking. Within this service class there are two subclasses, 3S for sulfide stress cracking service and 3C for chloride stress cracking service.

COVERAGE

This RP covers considerations for system design, instructions for safe installation, repair, and guidelines for operating and testing to assure safe and efficient performance of the SSSV System. Also included are procedures for reporting failures. This recommended practice is directed toward wireline, tubing retrievable and pumpdown SSSV systems.