SP Casing Scraper
Achieve effective casing cleaning with high-rotation, high-strength, and larger-flow-area tools
The Sharp Razor SP casing scraper is a durable tool for deepwater, deep, and deviated well applications. It is used to remove mud or cement sheath, perforation burs, rust mill scale, paraffin, and similar substances from interior walls of casing. The tool can be run by itself or as an integral part of a complete wellbore cleaning system with circulation tools, brushes, magnets, filters, and bits.
The casing scraper features one-piece mandrel design without any internal connection. The tensile and torque ratings of the tool are higher than those of the tool joint. This allows the tool to be used in deep wells or deviated wells in which higher tensile and torque ratings are required.
One feature of the tool is its high allowable rotation speed. Allowing drillpipe to rotate up to 150 rpm significantly increases the cleaning efficiency and also allows the tool to be used in the drilling or milling applications in which high rotation speed is required.
The tool also provides large inside diameter and annulus flow areas. It allows for more effective circulation and displacement operations.
The new helical blade design uses both sides and ends of the blade blocks providing more than doubled scraping area than the conventional scraper. The non-rotating blades and stabilizers prevent any excessive wear or damage to the casing when pipe rotation occurs.
Specifications
Tensile rating: higher than the tensile rating of tool joints
Torque rating: higher than the torque rating of tool joints
Allowable rotation speed: 150 rpm
Applications
Deepwater wells
Deep wells
Deviated wells
Extended-reach wells
Wells with high dogleg severity
Features and Benefits
One-piece mandrel design with higher-than-tool-joints tensile and torque ratings
Provides a reliable and effective tool to clean wellbore, and significantly mitigates completion and production risks and costs
Non-rotating stabilizers and scrapers
Effectively cleans well without damaging or wearing casing wall
Highest allowable rotation speed of 150 rpm
Increases cleaning efficiency
Large circulation areas
Improves circulation and displacement efficiency
Spring-energized helical blades with 360° coverage
Increases cleaning surface and circulation area
No exposed fasteners that could vibrate loose
Improves operational reliability
