Snubbing unit supplier

Product Series & Technical Specifications

SJ Petroleum Machinery offers a comprehensive range of snubbing units — from light-duty workover units for routine maintenance to heavy-duty systems capable of handling extreme downhole pressures. Below are the representative parameters of our snubbing unit product line:

Parameter	BYJ Series (Hydraulic Snubbing Workover)	160-ton Marine Snubbing Unit	2,250 kN Snubbing Unit (Deep Well Application)
Max Lifting Capacity (Hook Load)	400 – 2,700 kN (7 grades available)	1,600 kN (160 tons)	2,250 kN (225 tons)
Snubbing Capacity	185,400 – 400,000+ lbs	—	Compatible with high-pressure operation
Max Rotary Torque	—	—	22,000 N·m
Max Well Depth	Up to 6,100 m	Offshore qualified	6,100 m (operational track record)
Operating Pressure	Up to 21 MPa (3,000–10,000 psi applicable)	10,000 psi	High-pressure gas well certified
Configuration Options	Skid-mounted, trailer-mounted, truck-mounted	Offshore modular	Skid-mounted / Independent type
BOP Stack Compatibility	API 6A / 16C compliant	API 6A / 16C	API 6A / 16C
Certifications	API, ISO 9001, HSE	API, ISO 9001, National patents (8 items)	API, ISO 9001, National patents
Typical Operations	Snubbing in/out, fishing, milling, scraping, circulating sand, plugging, ESP deployment, underbalanced drilling	Offshore hydraulic workover	Deep & ultra-deep wells, long horizontal wells

Core technical capabilities: Our snubbing units feature micro-mark clamping hydraulic slips, bidirectional load-bearing power rotary tables, synchronized control heavy-duty cylinders, and high-performance hydraulically controlled plug valves — key components that enhance safety and operational efficiency under pressure. For deep shale gas applications, our snubbing equipment has completed over 30 well interventions at maximum depths of 6,100 meters, with fastest pipe tripping speed reaching 30 joints per hour.

Application Fields

Our snubbing units are deployed across a wide spectrum of well intervention scenarios:

• Live Well Workover & Completion – Perform well servicing without killing the well, protecting formation pressure and eliminating kill fluid costs.

• Underbalanced Drilling (UBD) – Maintain underbalanced conditions throughout drilling operations for enhanced reservoir recovery.

• Deep & Ultra-Deep Well Intervention – Rated for depths up to 6,100 meters, handling extreme downhole pressures.

• High-Pressure Gas Well / Shale Gas Development – Specially engineered for high-pressure environments, with surface pressures up to 14000 psi supported by field-proven track record.

• Offshore Hydraulic Workover – 160-ton marine snubbing unit fills domestic gaps in offshore hydraulic workover equipment with modular, crane-liftable design.

• Fishing, Milling, Scraping, Circulating Sand, Plugging, ESP Deployment – Full-service capability for complex downhole interventions.

Why Choose SJ Petroleum Machinery as Your Snubbing Unit Supplier?

✅ 1. API Certification & Global Standards Compliance

Our snubbing units are designed and manufactured in accordance with API 6A, API 16C, API 7K, API Q1, and international HSE standards (ISO 14001, OHSAS 18001). We maintain a rigorous quality management system that ensures every unit leaving our facility is fully documented and certified.

✅ 2. Sinopec-Backed Engineering Excellence

As a Sinopec subsidiary, we leverage over eight decades of petroleum machinery expertise, a national-level enterprise technology center, and over 200 national patents. Our engineers have participated in major international cooperation projects including the "1600 kN Oil & Gas Snubbing Equipment” program under China’s State International Science & Technology Cooperation Initiative.

✅ 3. Full Range of Product Configurations

We offer snubbing units in independent and assisted types, available in skid-mounted, trailer-mounted, and truck-mounted configurations — adaptable to onshore, offshore, desert, and arctic environments. From light-duty workover to heavy-duty 2,700 kN hydraulic snubbing systems, we have the right solution for your operation.

✅ 4. Factory-Direct Pricing & Global Shipping

Direct-from-manufacturer pricing eliminates middleman costs. Our logistics team handles safe packaging, loading, and international shipping to any destination, ensuring your equipment arrives on time and in perfect condition.

✅ 5. Responsive After-Sales & Technical Support

We provide comprehensive after-sales services: remote diagnostics, field technician dispatch, spare parts supply, and operator training. Our foreign sales and service teams maintain regular contact with clients long after delivery, ensuring continuous operational readiness.

🔧 Innovation Highlights

• Large-tonnage hydraulic slips with micro-mark clamping technology — eliminates pipe surface damage while maintaining secure grip under extreme loads.

• Bidirectional load-bearing power rotary table — enables milling and drill-grinding operations under snubbing conditions.

• Synchronized control heavy-duty cylinders — ensures smooth and safe lifting/snubbing strokes even under high differential pressure.

• High-performance hydraulically controlled plug valves — quick shut-off capabilities for emergency well control.

• "L”-shaped outriggers — no guylines required during operation, dramatically improving rig-up efficiency on congested well pads.

• 蓄能器-integrated hydraulic system — reduces installed power requirements while maintaining snubbing performance.

📦 Product Type Classification

Type	Configuration	Ideal Application
Independent Snubbing Unit	Self-contained hydraulic system; full snubbing capability without external assist	Deep wells, high-pressure gas wells, shale gas developments
Assisted (Hydraulic Workover) Unit	Lightweight, modular design	Routine workover, completion, low-to-medium pressure wells
Truck-mounted Snubbing Unit	Integrated on special-purpose vehicle chassis	Cluster wells, remote locations, rapid mobilization
Trailer-mounted Snubbing Unit	Towable configuration	Onshore operations requiring frequent relocation
Skid-mounted Snubbing Unit	Modular skid design	Offshore platforms, permanent installations
Marine Snubbing Unit	Corrosion-resistant, crane-liftable modules	Offshore platforms, floating production facilities

❓ FAQ – Snubbing Unit Supplier

Q1: What certifications do your snubbing units carry?
All our snubbing units are designed and manufactured to API 6A, API 16C, API 7K, and API Q1 standards, with ISO 9001, ISO 14001, and OHSAS 18001 / HSE management system certifications. We can provide full documentation upon request.

Q2: Can you customize snubbing units for specific well conditions?
Absolutely. We offer customized snubbing units tailored to specific pressure ratings, well depths, BOP stack configurations, and environmental conditions (offshore, arctic, desert, H₂S service). OEM/ODM services are available.

Q3: What is your typical lead time?
Standard snubbing units typically require 90–150 days from order confirmation to delivery, depending on specifications and production schedule. Expedited options may be available for select models. Contact our sales team for current lead time estimates.

Q4: Do you provide spare parts and technical training?
Yes. We maintain a comprehensive spare parts inventory and provide full technical documentation, on-site or remote training for operators and maintenance personnel, and ongoing technical support throughout the equipment’s service life.

Q5: Which countries have you exported snubbing units to?
Our petroleum equipment has been exported to oil-producing regions globally, including the Middle East, Southeast Asia, Africa, Central Asia, and South America. We are capable of shipping to any international destination with proper export documentation.

Q6: How do I get a quote for a snubbing unit?
Please contact our sales team via the inquiry form below or email us directly with your required specifications (lifting capacity, working pressure, well depth, configuration preference, and any special requirements). We will respond within 24 hours with a detailed proposal.

Q7: What is the difference between independent snubbing unit and assisted snubbing unit?
Independent snubbing units carry full hydraulic power and control systems onboard, capable of snubbing operations without external assistance. Assisted (hydraulic workover) units are lighter, more compact, and suitable for routine live well interventions with lower pressure requirements.