Oil and Gas industry uses pipelines widely to transport its products over long distances .Pipelines ensures a certain amount of safety, efficiency and its economical for the purpose. So Integrity in pipelines is essential for reliable pipeline operations for preventing expensive downtime and failures in pipelines.
Pipeline Integrity and reliability study consists of the following steps.
In-Line Inspections are done using sophisticated pigging tools to detect corrosion, cracks or leaks.
The Benefit of Performing a Pipeline Integrity and reliability study are as follows.
An Initial Risk assessment will be conducted to identify the potential integrity issues prevailing with the existing pipelines. Appropriate actions will be recommended to address the existing issues.
Annual integrity reviews for all pipeline systems, assessing the effectiveness of the integrity programs and making recommendations for improvement where needed.
Detection and Identification tools are used to collect information regarding the existing defects in the pipelines. Pipeline Defect information is normally gathered through walking along the pipeline by technical personnel, hydrostatic testing, and in-line inspection (ILI), non-destructive evaluation (NDE), etc. ILI tools are currently the most widely used for detecting pipeline defects.
Defect growth prediction is used to predict when a pipeline failure will occur and predict the growth of defect. Metal loss, Cracking Dents, Third party Damage, Weld etc. are threats to pipeline integrity. Studies are conducted on different defect Prediction models for effective integrity management.
Risk-based management will determine proper inspection intervals and maintenance and repair actions. Risk-based management models will also influence the first step and the second by possibly altering the inspection actions and defect status. The purpose of this program is to achieve accurate prediction and balance the reliability and costs in an effective way.