Product Overview
Our cylinder type heavy duty magnetic fishing tool is designed for retrieving ferrous junk and metallic debris from the wellbore. The high-performance rare earth magnet assembly generates a powerful magnetic field that attracts and holds ferrous objects including bits, mill cuttings, hand tools and connection components. The cylindrical housing with full-length magnetic core maximizes the capture surface area and magnetic field penetration depth. A retractable shield or flux bridge protects the magnetic surface during tripping in, preventing premature accumulation of junk from the casing wall. Once at the target depth, the shield is retracted to expose the full magnetic surface for maximum junk retrieval. High-strength alloy steel housing protects the magnet assembly from impact damage. Standard thread connections allow direct integration with coiled tubing BHA or slickline tool string.
Core Features
- High-performance rare earth magnet assembly
- Full-length cylindrical magnetic core for maximum capture area
- Retractable shield prevents premature junk accumulation during tripping in
- High pull force retrieves large and small ferrous debris
- Robust housing protects magnet from impact damage
- Standard thread connections for BHA integration
- Sour service material options available
Technical Specifications
| Model | Tool OD | Magnet Length | Connection | Pull Force | Max Temp |
|---|---|---|---|---|---|
| MFT-150 | 1.687" | 18" | 1" AMMT | 50 lbs | 350°F |
| MFT-175 | 1.750" | 24" | 1" AMMT | 75 lbs | 350°F |
| MFT-200 | 2.250" | 30" | 1 1/2" AMMT | 120 lbs | 350°F |
Typical Applications
- Recover metal debris generated during plug milling, casing cutting and grinding operations
- Fish fallen small ferrous hardware including bolts, cutter inserts, drill bit fragments inside casing
- Wellbore cleanup before completion to remove scattered metal junk
- Sour well debris fishing with hydrogen sulfide downhole environment
- Coiled tubing / slickline light fishing operations for scattered metal cuttings
- Remedial cleanup after failed downhole tool breakage accidents
- Sand washing and debris collection combination runs
Advantages Over Open Magnetic Fishing Tools
- Casing enclosure protects magnets from sand erosion, greatly prolonging magnetic service life
- Longer magnetic layout provides wider adsorption coverage to capture more scattered junk in one run
- Solid tubular structure can withstand greater axial tension and minor collision during tripping
- Internal magnet cartridge can be replaced individually without scrapping the outer tool housing
- Smoothing outer cylinder reduces casing scratch risk compared with open magnet bar designs
- Higher total magnetic pull force than open-magnet tools of same OD by enclosing magnetic circuit inside steel shell
FAQ
Q: Can internal magnetic cartridges be replaced after long-term usage?
A: Yes, you can disassemble the tool end fittings to swap worn magnetic cartridges, the outer alloy housing can be reused repeatedly.
Q: Is sour service housing available for high-sulfur wells?
A: We offer NACE MR0175 compliant CRA alloy housing versions with full material test certificates for export clearance.
Q: What is the maximum operating temperature?
A: Standard neodymium magnet models are rated to 350°F. High-temperature samarium cobalt magnet options are available for wells up to 500°F.
Q: What is your production lead time?
A: Standard in-stock models ship within 3–7 working days; customized magnetic fishing tools take 15–25 working days based on order quantity.
Get Custom Specification Sheet & Ex-Factory Bulk Price
We are specialized manufacturer of full-series coiled tubing downhole fishing tools with strict full-process QC inspection and complete certification files. Share your casing size, junk type and well conditions, our engineering team will send detailed datasheet and competitive quotation within 24 hours.
