Introduction Pipeline Terminologies Scraper Receiver Scraper LauncherKickerFlow in Flow out
Introduction Pipeline Terminologies Scraper Receiver Scraper LauncherFlow in Flow out Intermediate Scraper Receiver & Launcher
Introduction Pipeline Terminologies Need of scrapers and their handling facilities: Cleaning Batching Inspection
ObjectivesThis study is aimed to determine based onexperience the maximum length that certainpipelines can be extended without the needto install intermediate scraper handlingfacilities. It is also aimed to explore andprovide more information about the variety ofpipeline operators’ decisions and try tohighlight the need to establish a guideline fordetermining the optimum pipeline design.
Objectives To determine the maximum length of pipeline segment used in the industry without intermediate scraper handling facilities To find out what pipeline operator problems with longer segments. To explore the extent of using internal coating option. To estimate the economic benefits of eliminating the intermediate scraper handling facilities.
Significance of the Study & ItsBenefits Opportunity to Reduce cost Less Capital investment Less O&M Cost Establish benchmarking Improve competiveness of pipelines Reduce risk exposure Enhance Safety
Methodology(Questionnaire in Four Sections)1. To determine the maximum length of pipeline segment used in the industry without intermediate scraper handling facilities2. To find out what pipeline operator problems with longer segments.3. To explore the extent of using internal coating option.4. To estimate the economic benefits of eliminating the intermediate scraper handling facilities.
Summary & Conclusion It was found out that 27% of pipelines covered in this survey have segments with length greater than 500 kilometers without intermediate scraper handling facilities. Pipeline industry has a large variation in determining such length ranging from two digit distance to 1000 kilometers. Result did not indicate problems associated with operating longer pipeline segments.. Result indicated 40% of the pipelines are internally coated.
Cont… Summary & Conclusion It is apparent that there is an economic incentive to eliminate one intermediate scraper handling facilities which could result in saving about 40 M$ annually in addition to the initial investment cost that could exceed 20 times the annual operating cost. It is very clear that the pipeline industry has not yet established clear guidelines and standards that can be employed to optimize the length of a pipeline segment. It is recommended to perform a technical research to establish a reference or guideline that can be used for determining optimum length for pipeline segment