Efficiently Remove Debris from Your Wellbore with Junk Sub A
Must-Have for Drilling
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Product Overview:
Junk Sub is a core tool in oilfield drilling and repair operations,
dedicated to efficiently capture and remove heavy debris (such as
carbide teeth, drill bit fragments, gadget parts, bearings, etc.)
that cannot be discharged from the wellbore through conventional
circulation. Ensure bottom cleaning and drill bit safety,
significantly extend the life of the drill tool and reduce the risk
of drilling. It uses high-strength alloy material and optimized
fluid dynamic design, adapted to high pressure, high temperature
and complex well conditions, and is a key equipment for improving
drilling efficiency and operational reliability.
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The Working Principle Of Junk Sub Produced And Sold By Our Company
Huichi Petro:
In drilling operations, when it is necessary to salvage debris or
falls from the hole, connect the Junk Sub to the drilling equipment
and go down into the well. Then, through the operation of the
drilling equipment, the garbage basket or other salvage tool
connected to the lower end of the Junk Sub is sent downhole. When
the garbage basket catches debris or falling objects, the Junk Sub
and garbage basket are put out of the well through the lifting
function of the drilling equipment to complete the salvage
operation.
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Core Functions And Features:
- Efficient debris collection
- Eddy current deceleration design: Through the optimization of the outer contour structure and the
annular space gap, the fluid flow rate is reduced and the vortex is
formed, which promotes the natural settlement of heavy debris to
the collection chamber, and the removal efficiency is increased by
more than 40%.
- Modular filtration system: The multi-layer alloy filter can capture metal debris above 0.5mm,
adapt to API standard casing (5″-13⅜″), and is compatible with
straight, horizontal and large-slope well operations.
- High pressure resistance and corrosion resistance
- It is made of chromium molybdenum steel or nickel-based alloy,
which withstands extreme temperatures (-30℃ to 150℃), high pressure
(up to 10,000psi) and acidic media environment, ensuring long-term
downhole stability.
- Flexible adaptability
- It can be quickly deployed with tools such as hydraulic disassembly
and assembly (maximum torque of 300kN·m), continuous oil pipe
(CTU), etc., supports multi-working operation, reduces the number
of drilling and saves operating time by 30%.
- Intelligent monitoring module (optional)
- o Built-in sensors monitor debris accumulation and tool status in
real time, and reduce the risk of wellbore blockage through ground
control system early warning.
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Technical Parameters:
- Suitable well types: vertical well, horizontal well, large incline well
- Working pressure: ≤10000psi
- Temperature resistance range: -30℃ to 150℃
- Adaptation tools: hydraulic disassembly and continuous oil pipe system
- Material standards: Comply with API Spec 5B, ISO 9001 quality certification
| Model | Hole Size (mm) | Thread Conn. | I.D. (mm) | O.D. (mm) |
| LB94 | 108~117.5 | 2 3/8 REG | 19 | 94 |
| LB102 | 117.5~124 | 2 7/8 REG | 32 | 102 |
| LB114 | 130~149 | 3 1/2 REG | 38 | 114 |
| LB127 | 152.4~162 | 3 1/2 REG | 38 | 127 |
| LB140 | 165~190.5 | 3 1/2 REG | 38 | 140 |
| LB168 | 190.5~216 | 4 1/2 REG | 57 | 168 |
| LB178 | 219~244.5 | 4 1/2 REG | 57 | 178 |
| LB190 | 229~273 | 4 1/2 REG | 57 | 190 |
| LB197 | 235~279.5 | 4 1/2 IF | 70 | 197 |
| LB219 | 244~295 | 6 5/8 REG | 76 | 219 |
| LB229 | 254~305 | 6 5/8 REG | 76 | 229 |
| LB245 | 292~330 | 6 5/8 REG | 76 | 245 |
| LB280 | 330~375 | 7 5/8 REG | 76 | 280 |
| LB311 | 327~375 | 7 5/8 REG | 76 | 311 |
| LB327 | 375~444.5 | 7 5/8 REG | 76 | 327 |
| LB340 | 386~456 | 7 5/8 REG | 76 | 340 |
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Product Advantages:
- Extend drill tool life: reduce the wear of debris on the drill bit and casing, and reduce
the frequency of unplanned downtime.
- Easy to operate: the modular design supports rapid disassembly and assembly and
maintenance, and is adapted to mainstream drilling platforms.
- Environmental protection and safety: Accurately collect debris to avoid wellbore pollution, and comply
with international HSE standards.
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Notes:
When using Junk Sub for salvage operations, you need to select
appropriate salvage tools and operating methods according to the
well condition and salvage needs to ensure the safety and success
of the salvage operations. At the same time, you need to pay
attention to the maintenance and maintenance of Junk Sub, and check
the connection parts and wear conditions in a timely manner to
extend its service life and maintain the best working condition.
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Application Scenarios:
Junk Sub produced and sold by our company Huichi petro is widely
used in drilling, well repair and other operations in oil fields.
Especially when dealing with underground debris, small pieces of
falling objects and other impurities, its efficient and reliable
connection and salvage performance have been widely used.
Recognition and application.
- Drilling operations: Remove metal debris from drill bit wear to prevent drilling
accidents.
- Well repair and rescue: salvage the fracture tool or casing fragments in the well to
restore the integrity of the wellbore.
- Abandoned well sealing: Clean up residues in the abandoned wellbore to facilitate cement
sealing and environmentally friendly treatment.
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After-sales Service:
- Provide global 24-hour technical support and on-site operation
training, covering major oil-producing areas such as the Middle
East, North America, and Southeast Asia.
- Replace non-human damaged parts for free during the warranty
period, and provide customized debris management solution design
services.
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Product display:
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Product package:
Product packaging: iron box or iron frame, wooden pallet, wooden
box, bulk or customized according to customer requirements.
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Product detection:
100% inspection will be carried out before shipment, and video
image data and inspection reports will be provided.
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Accepted delivery terms:
FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express
Delivery, DAF, DES.
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About HuiChi (HC) petro:
Shandong Huichi Industry & Trade is a professional supplier of
drilling equipment for the oil and gas industry. We are committed
to providing the best products and services to customers around the
world.
We HuiChi (HC) Petro always regard our customers as our partners
and aim to achieve long-term cooperation value. Our Huichi products
cover different fields such as oil fields, water wells, HDD, etc.
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Why choose HuiChi (HC) petro?
One-stop drilling equipment supply;
Employee engineers have more than 10 years of experience in
supplying drilling equipment;
More than 10 people engaged in export business;
More than 40 partner countries and regions;
More than 200 customers having close cooperative relationships;
More than 250+ partner factories as suppliers.
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Focus on well drilling equipment , we have been working hard and
hope to become your most professional oil & gas equipment supplier
and the best partner!
Sales Manager:Cherry Chi
Email: cherry@huichipetro.com
Mob/WhatsApp/We chat: +86 15553820372
