API RP 11S 7:1993 (R2013)

This RP contains tutorial, testing, and failure evaluation information. It provides a general understanding of construction and functioning of seal chamber sections and identification of well conditions, system requirements and characteristics that influence component selection and application. Also included is information needed to evaluate causes of seal chamber section failures. Testing sections establish acceptable test procedures and criteria to help verify seal chamber section functionality. General shipping and handling information is also included.