Multi-function casing scraper is a new type casing scraper that can operate as both non-rotating fixed-type casing scraper and rotating type casing scraper. Beyond standard cleaning operations, this tool can stop running in the drill string when stuck, connect with washover tools, and apply pull force to shear the pin, then shift to rotating mode to proceed with releasing stuck operations. This includes providing torque, pushing, circulation, and jarring until normal conditions are recovered, allowing continued drill string operations.
| Model | Tool OD mm (inch) | Tool ID mm (inch) | Casing Size inch | Casing Weight lbf/ft | Shear Force KN | OAL mm (ft) | Connection |
|---|---|---|---|---|---|---|---|
| DGX121 | 121 (4-3/4) | 38.1 (1-1/2) | 7 | 17 ~ 32 | 334 | 3169 (10.4) | NC38 B × P |
| DGX165 | 165.1 (6-1/2) | 70 (2-3/4) | 9-5/8 | 32.3 ~ 53.5 | 334 | 3169 (10.4) | NC50 B × P |