Oil well casings are prone to getting dirty, which is why casing scrapers were invented. They let you reach down in casings in a safe manner for thorough cleaning. You'll be pleased with cleaning and scraper quality if you shop using these tips. Ensure Rotary Support Is Offered Sometimes using a casing scraper by hand isn't enough to effectively remove dirt and grime that has collected. Rather, you need to automate the scraper somehow, and that's totally possible if you get a scraper that comes with rotary support.