API I 149 Pipeline variable uncertainties & ther effects on leak detect ability
Implementation
As a rule pipelines for all uses are laid in most cases underground. However in some cases it is necessary to cross a valley or a river on a pipeline bridge. Pipelines for centralized heating systems are often laid on the ground or overhead. Pipelines for petroleum running through permafrost areas as Trans-Alaska-Pipeline are often run overhead in order to avoid melting the frozen ground by hot petroleum which would result in sinking the pipeline in the ground
Maintenance
Maintenance of pipelines includes checking Cathodic protection levels for th proper range, surveillance for construction, erosion, or leaks by foot, land vehicle, boat or air, and running cleaning pigs, when there is anything carried in the pipeline that i corrosive. maintenance rules are covered in Code of Federal US pipeline RegulationsCFR sections. 49 CFR 192 for natural gas pipelines, and 49 CFR 195 for petroleum liqui pipelines.
API I 149 Pipeline variable uncertainties & ther effects on leak detect ability Implementation As a rule pipelines for all uses are laid in most cases underground. However in some cases it is necessary to cross a valley or a river on a pipeline bridge. Pipelines for centralized heating systems are often laid on the ground or overhead. Pipelines for petroleum running through permafrost areas as Trans-Alaska-Pipeline are often run overhead in order to avoid melting the frozen ground by hot petroleum which would result in sinking the pipeline in the ground Maintenance Maintenance of pipelines includes checking Cathodic protection levels for th proper range, surveillance for construction, erosion, or leaks by foot, land vehicle, boat or air, and running cleaning pigs, when there is anything carried in the pipeline that i corrosive. maintenance rules are covered in Code of Federal US pipeline RegulationsCFR sections. 49 CFR 192 for natural gas pipelines, and 49 CFR 195 for petroleum liqui pipelines.
การแปล กรุณารอสักครู่..