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A pig is a device inserted into a pipeline which travels freely through it, driven by the product flow to do a specific task within the pipeline. These tasks fall into a number of different areas: (a) Utility pigs which perform a function such as cleaning, separating products in-line or dewatering the line; (b) Inline inspection pigs which are used to provide information on the condition of the pipeline and the extent and location of any problem (such as corrosion for example) and (c) special duty pigs such as plugs for isolating pipelines. Pipeline pigging is a technique to inspect the pipeline ducts to ensure clean and complete operability of any pipeline in various sectors such as construction, industrial plants such as chemical, oil & gas, water treatment etc. 'PIGS' are the devices which are inserted into the pipeline and travel throughout to record the blockage, affected parts of the pipeline. There are mainly two types of Pigs such as 'utility pigs' which are used to clean and separating the batch and in-line inspection, second type of pigs are 'ILI Tools', which are also known as intelligent pigs and are used to collect information such as condition of the pipeline and intensity of the problem and location. Smart Pigs or Intelligent Pipeline Pigging are large pieces of machinery pulled together with powerful technology that help with the maintenance of transmission pipelines. These pipeline pigging devices are major components to pipeline safety and accident prevention. These inspection tools provide data on the condition of pipelines which help gauge the health and integrity of the pipes. In a time where environmental protection is key and of global concern, smart pigs are the peacekeepers of the delicate relationship between pipelines and Mother Earth (and regulators). In addition, these smart pipeline pigs make sure that transmission of the product doesn't stop due to pipeline integrity issues, which can be disasterous to the bottom line.
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