Product Overview
Our rotary washing tool provides rotational jet cleaning for casing inner wall descaling, sand removal and wellbore cleanout operations. The tool features a hydraulically driven rotating nozzle head that directs high-pressure jetting fluid against the casing wall. As the nozzle rotates, it creates a helical cleaning pattern that effectively removes scale, paraffin, sand deposits and other wellbore obstructions. The rotating nozzle design provides more thorough coverage than stationary jetting tools. Hardened nozzle orifices resist erosion from abrasive cleaning fluids. The tool is compatible with water, brine, acid and solvent cleaning fluids. Standard thread connections for integration with coiled tubing BHA or workover strings.
Core Features
- Hydraulically driven rotating nozzle head
- Helical cleaning pattern for thorough coverage
- Hardened nozzle orifices resist erosion
- Compatible with various cleaning fluids
- Standard thread connections
- Sour service material options available
Technical Specifications
| Model | Tool OD | Nozzle Count | Connection | Length | Flow Rate | Max Pressure |
|---|---|---|---|---|---|---|
| RWT-150 | 1.687" | 4 | 1" AMMT | 24" | 1.0-2.5 bpm | 5,000 PSI |
| RWT-175 | 1.750" | 4 | 1" AMMT | 28" | 1.5-3.5 bpm | 5,000 PSI |
| RWT-200 | 2.250" | 6 | 1 1/2" AMMT | 32" | 2.0-5.0 bpm | 5,000 PSI |
Typical Applications
- Casing inner wall mineral scale and asphalt deposit removal
- Cleanup of compacted sand, residual proppant after fracturing operations
- Removal of cement burrs and drilling residue inside casing
- Water injection well flow channel dredging and biofilm cleaning
- Sour well washing under hydrogen sulfide corrosive conditions
- Horizontal well extended section full-perimeter wellbore cleanup
- Pre-packer installation casing cleaning to guarantee sealing performance
Advantages Over Fixed Jet Washing Tools
- Rotational jet achieves full circumferential coverage, no uncleaned blind spots along casing circumference
- High-speed water jet shear can strip harder scale that fixed nozzles cannot remove efficiently
- Rounded nose protects casing from sharp tool collision during running in hole
- Replaceable jet nozzle components lower overall tool maintenance cost
- Even distributed hydraulic load reduces local casing erosion caused by long-time fixed jet impact
- Less multiple-pass requirement reduces total operation time compared with fixed nozzle tools
FAQ
Q: What pumping flow rate is required for ideal venturi suction performance?
A: Each model has a recommended flow range in the specification table; our engineers will select suitable model after confirming your pump output.
Q: Can this tool be manufactured for sour well applications?
A: We supply NACE MR0175 / ISO 15156 certified sour service versions with full material test certificates for export clearance.
Q: What is the maximum debris size that can be captured?
A: The inlet size and collection chamber opening dimensions determine maximum particle size; contact our team with your debris size information for model recommendation.
Q: What is the production lead time?
A: Standard in-stock models ship within 3–7 working days; customized venturi junk baskets take 15–25 working days based on order quantity.
We manufacture full series downhole cleaning tools with rigorous quality control. Contact us for detailed datasheet and competitive pricing.
