The RazRdillo™ Casing Scraper is a robust, 360° free rotating contact, wellbore clean-up tool and can be run individually or modularly as part of the ArmRdillo ™ Wellbore Clean-Up System. The RazRdillo™ Casing Scraper can be adapted to suit any casing size and drill pipe combination.
Features
- Strong, self-sprung, single piece Scraper Broach machined from a single billet of steel with multiple rows of overlapping teeth
- Scraper Broach flexes to perfectly fit the casing ID, while being stiff enough to provide strong scraping force which ensures true 360° coverage where sprung pad scrapers cannot
- Two fluted Centralizer Rings provide centralization, bypass and protects the Scraper Broach
- Free rotating tool design with Internal Bearing Rings to prevent drill pipe, tool or casing wear
- Can be quickly assembled redressed on location with simple hand tools
- No external bolts, clamps or fasteners that can come loose down hole
- Robust assembly method with multiple back-ups
Benefits
Cost savings
- The ArmRdillo™ Wellbore Clean-Up System has incremental cost savings on logistics, deck space, inspection and maintenance and can also be serviced at the rig-site with basic hand tools
Increases Well Productivity
- A properly executed wellbore clean-up reduces fine debris which can block screens and pore throats reducing well productivity
Integrity
- The ArmRdillo™ Wellbore Clean-Up System can be provided with any type of rig end connections including premium and high torque connections reducing the need for reduced strength crossovers
- Single piece mandrel with no internal connections for increased strength
Reducing Non-Productive Time
- A robust wellbore clean-up is proven to reduce nonproductive time during the completion of the well
- Reduces premature failure of completion equipment by debris which can interfere with valves, electronics and other hardware
Applications
- Pre-completion wellbore clean-up operations to remove hardened cement sheath, scale, mud solids, cuttings and other detritus from the casing wall
- Typically run as a complement to the ScourRdillo™ Casing Scraper for superior hole cleaning
- Drilling casing cement plugs in a single trip
- Extended reach wells where high strength drill pipe connections are required
- Remote locations where logistics are constrained and tool maintenance can be performed at the rig site
- Short tripping where multiple tools need to be run on the same string
Operational
- While running in hole, the teeth of the RazRdillo™ Scraper Broach scrapes the casing wall removing cement sheath and other debris
- Cement plugs can be drilled inside the casing as required
- The RazRdillo™ is reciprocated across critical depths to remove hardened cement sheath and other debris
- During displacement the drill string can be rotated and reciprocated to improve hole cleaning without fear of damage or wear of the casing, drill pipe or of the ArmRdillo™ Wellbore Clean-Up System