Description
Reverse Circulation Fishing Magnet for Oilfield Wellbore Junk Recovery
Downhole Magnetic Fishing Tool for Drilling, Workover, Completion, and Post-Milling Cleanout
SGPE Reverse Circulation Fishing Magnet is a high-efficiency downhole fishing tool for recovering small ferrous objects from oil and gas wells. It combines strong magnetic holding force with reverse circulation cleaning, so field crews can wash the bottom of the hole, expose buried steel fragments, and retrieve metal debris more effectively.
In drilling, milling, casing repair, tubing handling, pump service, and well intervention, small metal parts may fall into the wellbore. Bit cone fragments, tong pins, slips, bolts, nuts, bearing pieces, steel cuttings, and broken tool parts can damage drill bits, block downhole tools, delay completion work, and increase non-productive time.
SGPE supplies Reverse Circulation Fishing Magnets for drilling contractors, workover teams, well servicing companies, and oilfield procurement departments that need reliable wellbore junk recovery tools for demanding field operations.
Need model selection support? Send SGPE your hole size, fishing string connection, well temperature, and expected debris type. Our team will help you choose a suitable reverse circulation fishing magnet for your oilfield project.
Product Overview
A Reverse Circulation Fishing Magnet works as a downhole magnetic junk recovery tool for oil and gas wells. The magnet element attracts and holds ferrous objects, while reverse circulation flow removes mud, cuttings, and loose particles around the fish. This combined action improves magnetic contact and increases the chance of successful recovery.
Compared with a standard fishing magnet, this tool provides stronger bottom-hole cleaning performance. Operators can run it in open-hole drilling, cased-hole fishing, workover cleanout, completion preparation, post-milling cleanout, and routine well servicing.
For buyers searching for an oilfield fishing magnet, downhole magnetic fishing tool, reverse circulation junk recovery tool, wellbore cleaning tool, drilling debris recovery magnet, or ferrous debris retrieval tool for workover operations, SGPE provides a practical solution with multiple sizes, thread connections, and guide options.
Key Features
Strong Magnetic Holding Force
The magnet element helps recover small steel objects from the bottom of the wellbore. It can attract steel cuttings, bit fragments, bolts, nuts, slips, tong pins, and other downhole metal debris commonly found in oilfield operations.
Reverse Circulation Cleaning Design
The reverse circulation flow path washes the bottom-hole area before the magnet contacts the fish. It clears mud cover and loose cuttings, allowing the magnetic surface to reach metal fragments more directly.
Higher Junk Recovery Efficiency
The tool combines circulation, magnetic attraction, slow rotation, and controlled lifting. This process helps crews retrieve more debris in fewer runs and reduces the risk of leaving harmful steel fragments in the well.
Wide Size Range for Oil and Gas Wells
SGPE offers models from 89 mm to 406 mm O.D. The size range covers many hole sizes used in drilling, workover, completion, well servicing, and post-milling cleanout jobs.
High-Temperature Downhole Capability
The tool supports well temperatures up to 210°C, which makes it suitable for many high-temperature drilling and workover conditions.
Guide Options for Different Fishing Jobs
A standard flush guide suits general magnetic fishing operations. Lipped guides help collect scattered metal debris, while mill guides support post-milling cleanout and irregular bottom-hole conditions.
Product Construction
SGPE Reverse Circulation Fishing Magnet uses a durable structure for wellsite operation. The main components include lifting bail, top sub, housing, magnet element, pole plate, standard flush guide, and steel ball.
| Component | Function in Oilfield Operation |
|---|---|
| Lifting Bail | Connects the tool to the fishing string and supports lifting during retrieval. |
| Top Sub | Provides thread connection and transfers torque and circulation flow. |
| Housing | Protects the internal structure and supports the complete tool body. |
| Magnet Element | Creates magnetic force to attract ferrous downhole debris. |
| Pole Plate | Improves magnetic contact and helps hold recovered metal junk. |
| Standard Flush Guide | Guides the tool to the bottom and supports circulation cleaning. |
| Steel Ball | Activates reverse circulation after operators pump it into the valve seat. |
| Optional Guides | Adapt the tool to different fishing and wellbore cleanout conditions. |
This structure supports stable bottom-hole cleaning, magnetic junk retrieval, and downhole fishing in oil and gas wells.
Working Principle
The Reverse Circulation Fishing Magnet recovers metal debris through a controlled downhole fishing process.
First, the operator lowers the tool into the wellbore and stops about 40 inches above the bottom. Circulation then washes the fish and clears mud, cuttings, and loose debris from the bottom-hole area.
After the flow cleans the area, the operator reduces circulation and slowly lowers the magnet to the bottom. Gentle rotation helps the magnetic surface contact the debris. The magnet then attracts and holds the steel objects.
Next, the operator lifts the tool 10 to 20 inches, drops the steel ball into the fishing string, and pumps the ball into the valve seat. This step activates reverse circulation. After a short period of rotation and circulation, the operator stops the pump and pulls the tool out of the hole.
This process helps improve recovery efficiency, protect downhole equipment, and reduce repeated fishing runs.
Oilfield Applications
SGPE Reverse Circulation Fishing Magnet fits many oil and gas well operations where crews need to remove steel debris, broken parts, or magnetic junk from the wellbore.
Drilling Operations
When bit damage, tool failure, or accidental metal loss occurs during drilling, the tool can recover steel fragments before crews resume drilling or run the next bottom-hole assembly.
Workover Operations
During workover jobs, small steel parts may fall into the well while crews repair tubing, casing tools, pumps, or other downhole equipment. The fishing magnet helps remove these objects before the next operation starts.
Well Servicing and Well Intervention
Oilfield service teams can run the tool during well maintenance, well intervention, or cleanout jobs. It improves wellbore cleanliness and reduces obstruction risks before further downhole work.
Completion Preparation
Before running packers, screens, production tubing, or completion tools, operators can use the magnet to remove magnetic junk from the wellbore. A cleaner hole helps reduce tool damage and running problems.
Milling and Post-Milling Cleanout
Milling often leaves steel cuttings, broken fragments, and small magnetic particles in the well. The Reverse Circulation Fishing Magnet collects these pieces and supports a cleaner post-milling wellbore.
Cased-Hole Fishing
In cased-hole wells, metal debris may restrict tubing movement, block tool passage, or interfere with downhole assemblies. This tool helps restore a cleaner path for follow-up operations.
Open-Hole Fishing
In open-hole drilling, crews can use the tool to remove metal debris before reaming, conditioning the hole, or continuing drilling.
Bottom-Hole Junk Recovery
The tool supports bottom-hole junk recovery when operators need to retrieve bolts, nuts, slips, tong pins, bit cone pieces, bearing parts, steel cuttings, and other ferrous objects from oilfield wells.
Main Benefits for Oilfield Operators
Cleaner Wellbore Bottom
Reverse circulation helps expose buried metal debris and improves magnetic contact. This gives crews a better chance of recovering downhole junk in one run.
Reduced Non-Productive Time
Efficient debris recovery can reduce repeated fishing trips, shorten downtime, and help crews return to drilling, workover, or completion work faster.
Better Protection for Downhole Tools
Removing steel debris helps protect drill bits, mills, pumps, packers, completion tools, and other expensive downhole equipment.
Flexible Model Selection
SGPE provides multiple O.D. sizes, thread connections, and guide options. Buyers can match the tool to wellbore size, fishing string, debris type, and job objective.
Reliable Performance in Demanding Wells
The tool supports high-temperature well environments and common oilfield fishing requirements in drilling, workover, completion, and well servicing operations.
Easier Procurement and Technical Selection
SGPE helps customers select a suitable model according to hole size, casing size, thread connection, operating temperature, debris type, and guide requirement.
Operation Procedure
- Connect the Reverse Circulation Fishing Magnet to the fishing string with the correct thread connection.
- Lower the tool carefully into the oil or gas well.
- Stop about 40 inches above the bottom of the hole.
- Start circulation to wash the fish and clean the bottom-hole area.
- Reduce circulation and slowly lower the magnet to the bottom.
- Rotate the tool slowly to improve contact between the magnet and the metal debris.
- Lift the tool 10 to 20 inches from the bottom.
- Drop the steel ball into the fishing string.
- Pump the steel ball into the valve seat to activate reverse circulation.
- Rotate and circulate for a short time.
- Stop circulation.
- Pull the tool out of the hole and remove the recovered metal junk.
Operators should follow the drilling program, well control requirements, and site safety procedures before running any downhole fishing tool.
Optional Accessories
SGPE provides guide options for different wellbore conditions and fishing objectives.
| Accessory | Oilfield Application |
|---|---|
| Standard Flush Guide | Suitable for general magnetic fishing and bottom-hole cleaning in oil and gas wells. |
| Lipped Guide | Helps collect scattered metal debris and improves junk retention during retrieval. |
| Mill Guide | Supports post-milling cleanout and irregular bottom-hole conditions. |
SGPE can recommend a suitable guide according to hole size, debris type, bottom-hole condition, and operation purpose.
Specifications – Reverse Circulation Fishing Magnet
| Model | O.D. (mm) | Thread Connection | Magnetic Attraction Rating* | Temperature in Well (°C) | Hole Size (mm) |
|---|---|---|---|---|---|
| CLF89 | 89 | NC26 | 9.8 | 210 | 95–110 |
| CLF100 | 100 | NC26 | 9.8 | 210 | 110–135 |
| CLF125 | 125 | NC38 | 9.8 | 210 | 135–165 |
| CLF140 | 140 | NC38 | 8.5 | 210 | 150–175 |
| CLF146 | 146 | NC38 | 8.5 | 210 | 160–185 |
| CLF152 | 152 | NC38 | 8.5 | 210 | 160–185 |
| CLF178 | 178 | NC50 | 7.8 | 210 | 185–210 |
| CLF190 | 190 | NC50 | 7.8 | 210 | 200–225 |
| CLF200 | 200 | NC50 | 7.6 | 210 | 210–235 |
| CLF203 | 203 | NC50 | 7.6 | 210 | 215–240 |
| CLF225 | 225 | NC50 | 7.5 | 210 | 235–270 |
| CLF254 | 254 | 6 5/8 REG | 7.0 | 210 | 265–311 |
| CLF265 | 265 | 6 5/8 REG | 6.9 | 210 | 275–330 |
| CLF292 | 292 | 6 5/8 REG | 6.9 | 210 | 300–442 |
| CLF317 | 317 | 7 5/8 REG | 6.9 | 210 | 340–375 |
| CLF356 | 356 | 7 5/8 REG | 6.9 | 210 | 444.5 |
| CLF406 | 406 | 7 5/8 REG | 6.9 | 210 | 444.5–660 |
*Magnetic Attraction Rating follows SGPE product data. Please contact SGPE if your project requires detailed technical confirmation, inspection details, or test documentation.
Custom sizes, thread connections, and guide options are available according to oilfield project requirements.
How to Select the Right Reverse Circulation Fishing Magnet
Choosing the right model helps improve recovery efficiency and reduce operational risk. Before ordering, buyers should confirm the following information:
| Selection Factor | What to Confirm |
|---|---|
| Hole Size | Match the magnet O.D. with the wellbore or casing size. |
| Thread Connection | Choose a connection that matches the fishing string. |
| Debris Type | Confirm whether the well contains bolts, nuts, slips, steel cuttings, bit cone fragments, or other ferrous objects. |
| Well Temperature | Make sure the tool meets the expected downhole temperature. |
| Operation Type | Confirm drilling, workover, completion, post-milling cleanout, or well servicing use. |
| Guide Requirement | Choose a flush, lipped, or mill guide according to bottom-hole condition. |
| Fishing Objective | Confirm whether the job focuses on junk recovery, wellbore cleaning, or tool protection before the next operation. |
Need help choosing the right model? Send SGPE your hole size, casing size, thread connection, well temperature, and expected debris type. Our team can recommend a suitable Reverse Circulation Fishing Magnet for your oilfield project.
Why Choose SGPE Reverse Circulation Fishing Magnet
SGPE supplies oilfield drilling, workover, and fishing tools for demanding wellsite operations. We support drilling contractors, workover teams, oilfield service companies, and procurement departments with practical equipment selection and export-ready supply.
SGPE supports customers with:
- Multiple tool sizes for different oil and gas well conditions
- Common thread connections for drilling and workover fishing strings
- Optional guide designs for different debris and bottom-hole conditions
- High-temperature downhole working capability
- Model selection support based on wellbore data and fishing objectives
- Custom thread connections and project-based configurations
- Technical communication for quotation and procurement review
- Stable supply for global oilfield markets
- Export-ready packaging for international shipment
- Related oilfield fishing tools for complete fishing operations
SGPE focuses on field practicality. We help customers match the tool to the well condition, fishing string, and recovery target, so crews can clean the wellbore and retrieve ferrous debris with better efficiency.
Mid-Page Inquiry Support
Not sure which model fits your well? Share your wellbore size, casing size, fishing string connection, bottom-hole condition, well temperature, and expected debris type with SGPE. Our team will help you select the right reverse circulation fishing magnet for drilling, workover, completion preparation, or post-milling cleanout operations.
Frequently Asked Questions About Reverse Circulation Fishing Magnet
1. What is a Reverse Circulation Fishing Magnet?
A Reverse Circulation Fishing Magnet is a downhole magnetic fishing tool for oil and gas wells. It helps operators recover small ferrous debris from the bottom of the wellbore. Unlike a standard fishing magnet, it combines magnetic attraction with reverse circulation cleaning.
This design washes mud, cuttings, and loose particles away from the fish, so the magnet can contact steel debris more directly. Oilfield crews often use it during drilling, workover, completion, well servicing, and post-milling cleanout operations.
2. How does a Reverse Circulation Fishing Magnet work in an oilfield well?
The tool works through a controlled downhole fishing process. First, the operator lowers the fishing magnet close to the bottom of the hole and starts circulation to clean the area around the fish. Then the operator lowers the tool to contact the debris and rotates it slowly.
The magnet attracts and holds ferrous objects such as steel cuttings, bolts, slips, and bit fragments. After the operator drops the steel ball and activates reverse circulation, the tool improves bottom-hole cleaning before crews pull it out of the well.
3. What types of debris can this oilfield fishing magnet recover?
SGPE Reverse Circulation Fishing Magnet can recover many types of magnetic metal debris in oil and gas wells. Common targets include bolts, nuts, tong pins, slips, bit cone fragments, bearing pieces, milling cuttings, broken tool parts, steel particles, and small ferrous objects.
These objects may fall into the well during drilling, milling, casing repair, tubing handling, pump service, or workover operations. By removing this downhole junk, crews can protect drill bits, mills, pumps, packers, completion tools, and other expensive wellbore equipment.
4. What is the difference between a standard fishing magnet and a reverse circulation fishing magnet?
A standard fishing magnet mainly depends on magnetic force to attract steel debris. A reverse circulation fishing magnet adds a cleaning function before and during recovery. Its reverse circulation design removes mud cover, loose cuttings, and fine particles around the fish. As a result, the magnet can reach buried or partially covered metal fragments more easily.
For drilling debris recovery, workover cleanout, and post-milling junk removal, this design often gives operators better bottom-hole cleaning and a higher recovery chance.
5. When should operators use a Reverse Circulation Fishing Magnet?
Operators should use a Reverse Circulation Fishing Magnet when magnetic metal debris remains in the wellbore and may affect the next operation. Typical cases include bit damage, tool failure, milling jobs, casing repair, tubing work, pump service, completion preparation, and routine well intervention.
Crews can run the tool before they continue drilling, run a bottom-hole assembly, install completion tools, or perform well servicing. It helps reduce obstruction risks and lowers non-productive time in oilfield operations.
6. Can this tool support drilling, workover, and completion operations?
Yes. SGPE Reverse Circulation Fishing Magnet supports drilling, workover, completion, and well servicing jobs. During drilling, it helps recover steel fragments before crews resume drilling or run the next assembly. In workover operations, it removes metal debris left by tubing repair, pump service, casing work, or downhole tool handling.
Before completion, crews can use it to clean the wellbore and reduce the risk of packer, screen, tubing, or completion tool obstruction. This makes it a practical wellbore junk recovery tool for many oilfield projects.
7. Can the tool recover steel cuttings after milling operations?
Yes. Milling operations often leave steel cuttings, broken fragments, and small magnetic particles in the well. These particles can block tool passage or damage follow-up equipment if crews leave them in the hole. SGPE Reverse Circulation Fishing Magnet helps collect these particles and improves post-milling cleanout efficiency.
Reverse circulation exposes the debris, while the magnet element attracts and holds the steel pieces. For post-milling cleanout in cased-hole wells or workover wells, this tool offers strong practical value.
8. What hole sizes and tool sizes are available?
SGPE offers Reverse Circulation Fishing Magnet models from CLF89 to CLF406, with outside diameters from 89 mm to 406 mm. These models cover a wide range of oil and gas well hole sizes, from small workover wells to larger drilling and cleanout applications.
Buyers can select the tool size according to wellbore size, casing size, fishing string, and bottom-hole condition. For special hole sizes or connection requirements, SGPE can discuss a customized configuration based on the well program.
9. What thread connections does SGPE provide?
Standard thread connections include NC26, NC38, NC50, 6 5/8 REG, and 7 5/8 REG. These connections match common fishing strings used in drilling, workover, and well servicing operations. Choosing the correct thread connection helps ensure safe tool assembly, stable torque transfer, and reliable circulation during the fishing job.
Before ordering, buyers should confirm the fishing string connection, wellbore size, and operation type. SGPE can help check the suitable model and thread connection for the project.
10. How should buyers choose the right guide option?
SGPE provides standard flush guides, lipped guides, and mill guides for different fishing conditions. A flush guide suits general magnetic fishing and bottom-hole cleaning in oil and gas wells. A lipped guide helps collect scattered metal debris and improves junk retention during retrieval.
A mill guide works better for tougher post-milling cleanout jobs or irregular bottom-hole conditions. Buyers should choose the guide according to hole size, debris type, bottom-hole shape, and fishing objective.
11. What information should I provide before requesting a quotation?
To help SGPE recommend the right Reverse Circulation Fishing Magnet, please provide the hole size, casing size, fishing string connection, well temperature, expected debris type, operation type, and preferred guide option.
It also helps to mention whether the job involves drilling debris recovery, workover cleanout, completion preparation, cased-hole fishing, open-hole fishing, or post-milling cleanout. With these details, SGPE can select a suitable model, confirm the connection, and provide a more accurate technical quotation.
12. Why choose SGPE as your Reverse Circulation Fishing Magnet supplier?
SGPE supplies oilfield fishing tools for drilling contractors, workover teams, well servicing companies, and oilfield procurement departments. The company offers multiple tool sizes, common thread connections, optional guide designs, and project-based configuration support.
SGPE also helps customers choose suitable tools according to wellbore size, debris type, downhole temperature, and operation purpose. If you need an oilfield fishing magnet supplier for wellbore junk recovery, drilling debris retrieval, or post-milling cleanout, SGPE can provide practical technical support and export-ready supply.
Request a Quote
Looking for a reliable Reverse Circulation Fishing Magnet for oilfield drilling, workover, completion, post-milling cleanout, or well servicing operations?
Send SGPE your hole size, fishing string connection, well temperature, debris type, and fishing objective.
E-Mail:
info@sgpe.com
