The casing scraper is used to remove cement, hard wax, salt scale and blasthole burrs on the inner wall of the casing. It is an important process of workover operations and normal downhole operations. Maintaining a clean casing ID is important to the operation of all tools used in drilling the well. In Tiptop, every parts of the casing scraper are made of high quality steel, and fully heat treated. The scraper blades fit into machined recesses and are securely held by adovetail keeper and spacer. The surface of casing scraper has the left hand helicalgrooves, and the edge is high hardness materials for maximum service. There aresufficient blades in the body to completely scrape the casing surface without rotatingthe tool.The standard connection of the casing scraper is API REG box and pin.
This allows the scraper to be installed in the drilling string between the bit and the bit sub.The bit works under the casing scraper, and has a function of guiding, and alsoprevents from jamming.
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