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Oilfield Glossary
Oilfield Glossary
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Tools

scraper

1. n. [Well Workover and Intervention]
Also called a pig, a device with blades or brushes inserted in a pipeline for cleaning purposes. The pressure of the oil stream behind pushes the pig along the pipeline to clean out rust, wax, scale and debris. To clean downhole tubulars a similar device, called a casing scraper or paraffin scraper, may be used.
Synonyms: pig