SLG450 Coiled tubing unit

Technical Specifications

Applications – Where the SLG450 Excels

The SLG450 coiled tubing unit is purpose-built for demanding well intervention operations in ultra-deep wells and deep unconventional oil & gas development. Here’s where it delivers the best return:

The SLG450 has demonstrated its capabilities across China's major oilfields (Fuling, Weiyuan, Shengli, Puguang) and international markets (Saudi Arabia, Russia, Africa). It is the preferred main equipment for coiled tubing oil and gas field development.

Product Type Configurations

The trailer-mounted integrated SLG450 is particularly noteworthy—it requires no on-site pipe threading or cable connections and can achieve wellhead installation within 1 hour, meeting deep and ultra-deep coiled tubing operation requirements.

OEM Customization Solutions

The SLG450 is not a one-size-fits-all product—it's a flagship platform that we adapt to your specific requirements. SJ offers customized coiled tubing units tailored to your operational needs.

What we customize:

• Reel capacity – Sized precisely to your target depth and tubing diameter

• Tubing diameter – From 2″ up to 2-7/8″ and beyond

• Mounting configuration – Truck-mounted, skid-mounted, trailer-mounted, or combination

• Automation level – From standard hydraulic to full "one-key” electro-hydraulic automation

• BOP stack – Pressure rating and size per your well control requirements

• Control system upgrades – Data acquisition, remote monitoring, automated control features

• Climate adaptation – Cold-weather starting packages; high-temperature cooling

• Well control integration – Compatibility with your existing BOPs or wellhead equipment

• Downhole tool packages – Fishing tools, milling assemblies, logging adapters

• Video monitoring – Explosion-proof cameras for enhanced operator visibility

• Fleet branding – Your company colors and logos applied before delivery

Why Choose SJ Petroleum Machinery?

🏭 Sinopec Manufacturing Heritage

We're not a trading company—we’re a manufacturer with roots in Sinopec's engineering ecosystem. Founded in 1941, we’ve been building oilfield equipment for over eight decades. As a China Critical Technological Equipment Nationalization Base and National Hi-tech Enterprise, our quality systems, supply chains, and engineering standards meet the highest benchmarks.

🔧 Full-Spectrum Engineering Capability – 100% Independent

From injector head to control cabin, we design and build every major component in-house. We don't just assemble—we engineer. Our SLG450 project was recognized as reaching international advanced level by Sinopec’s Science and Technology Department and received Sinopec Group's Science and Technology Progress Second Prize.

🎮 Automation Pioneer – China’s First "One-Key” CTU

We developed China's first "one-key” automated coiled tubing unit. Our fully electro-hydraulic control system with integrated network control represents the cutting edge of coiled tubing automation. We continue to advance automation and network control in coiled tubing equipment.

🌍 Proven Global Track Record

SLG450 units have been deployed across China's major oilfields (Fuling, Weiyuan, Shengli, Puguang) and exported to Saudi Arabia, Russia, Africa, and other regions. In Saudi Arabia’s Udlia block, the SLG450 successfully completed its first induced injection production operation, earning positive feedback from the user, particularly Saudi Aramco.

📊 Field-Proven Performance – 120+ Jobs, 3.6 Million Meters

In 2024 alone, a single SLG450 unit in the Shengli Oilfield completed over 120 well intervention jobs with a maximum depth of 4,965.3 meters and cumulative operation mileage of 3.6 million meters, achieving single-well operations completed within the same day.

📋 Certified to International Standards

API Q1, ISO 9001, and HSE management system certified. Our manufacturing processes are audited annually.

🔄 One-Stop Service Commitment

Commissioning support, operator training, spare parts logistics, and technical troubleshooting—we stay with you after the sale. Our export team understands the logistics of international shipping and can arrange delivery to your location.

💰 Competitive Pricing, No Quality Compromise

Chinese manufacturing doesn't mean cutting corners. We deliver professional-grade coiled tubing equipment at prices that make sense for your capital budget—full transparency on materials, components, and workmanship.

Frequently Asked Questions (FAQ)

Q1: What’s the actual pulling and snubbing capacity of the SLG450?

A: The SLG450 delivers 450 kN (100,000 lbs) of continuous pulling force and 225 kN (50,000 lbs) of continuous snubbing force. These are continuous ratings, not peak—you can rely on these numbers for sustained operations in the most demanding conditions.

Q2: What does "one-key” automation mean?

A: The SLG450 is China's first "one-key” automated coiled tubing unit. The fully electro-hydraulic control system allows operators to achieve automatic pipe running and retrieval, automatic pipe spooling, and automatic lubrication by simply setting input parameters. The system includes three automatic drilling modes that reduce drilling time from 2–4 hours to 0.5–1 hour—a 50% efficiency improvement. It also features adaptive control pressure adjustment that intelligently identifies and intervenes in slip drilling situations to enhance operational safety.

Q3: What tubing sizes and depths does the SLG450 handle?

A: The SLG450 handles tubing from 2″ up to 2-7/8″ (50.8–73.0 mm) with a maximum operational depth of 6,000 meters. Field operations have demonstrated maximum depths of 4,965.3 meters. Reel capacity and tubing diameter are customizable per your requirements.

Q4: What mounting options are available?

A: Truck-mounted, skid-mounted, trailer-mounted, and combination configurations. The two-truck split-type maximizes tubing capacity, while the trailer-mounted integrated configuration requires no on-site pipe threading or cable connections and achieves wellhead installation within 1 hour.

Q5: How much faster is the SLG450 compared to conventional equipment?

A: The SLG450 achieves no-collar, uninterrupted continuous pipe running and retrieval with operating efficiency more than 3 times that of conventional equipment. The "one-key” automation further reduces drilling time by 50%.

Q6: Has the SLG450 been proven in the field?

A: Yes. In 2024 alone, a single SLG450 unit in the Shengli Oilfield completed over 120 well intervention jobs with a maximum depth of 4,965.3 meters and cumulative operation mileage of 3.6 million meters. The unit has also been successfully deployed in Saudi Arabia’s Udlia block (earning praise from Saudi Aramco), Russia's Surgut region, and China’s Fuling, Weiyuan, and Puguang oilfields.

Q7: What's the typical lead time?

A: Standard lead time is 90 to 150 days from order confirmation to shipment, depending on configuration and customization level. Contact our sales team for current availability.

Q8: Do you provide training and after-sales support?

A: Absolutely. Each SLG450 sale includes commissioning assistance and operator/maintainer training—either at your facility or ours. Spare parts are stocked for global shipment, and our technicians are available for field support.

Q9: Are the core components independently manufactured?

A: Yes. The SLG450's injector head, tubing reel, control system, and other key components are 100% independently designed and built by SJ. The SLG450 project was recognized as reaching international advanced level by Sinopec's Science and Technology Department.

Q10: How do I get a quote for an SLG450?

A: Send us your well parameters: target depth, tubing diameter, expected wellhead pressure, preferred mounting configuration, and operating environment. We’ll respond with a technical proposal and commercial quote within 7–10 business days.

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