The purpose of the procedure is to assess health and integrity of old operative & ageing pipelines (beyond design life),residual life assessment and jobs to be undertaken by operators for repair of damages/ defects with the objective to prevent incident and sustain pipeline operation
After the completion of initially estimated design life of the cross country pipeline, the following monitoring / Assessment of pipeline integrity have to be carried out within one year, using the appropriate methods:
- In-Line Inspection,
Rate of corrosion as calculated by corrosion probe, coupon, sensor placed in the pipeline
Pig residue shall be chemically examined
Intelligent pigging through a high-resolution tool
Records pertaining to inspections, such as external or internal line conditions
- Pressure Test
- Review of CP system
- Review of records of Leak , burst & repair history
- Direct Assessment, or
- Other new technology.