Coiled Tubing Units (CTUs)

Technical Specifications – Complete CTU Configurations

Below are standard models. We build to your exact well depth, tubing size, and transport constraints – not just "off the shelf.”

Parameter	Light CTU	Medium CTU	Heavy CTU
Injector Pull Capacity	20,000 – 30,000 lbs	40,000 – 70,000 lbs	80,000 – 100,000+ lbs
Tubing OD Range	1.000″ – 1.500″	1.500″ – 2.000″	2.000″ – 3.500″
Max Depth (typical)	8,000 ft	15,000 ft	20,000+ ft
Reel Capacity	8,000 m of 1.25″	7,000 m of 1.75″	6,000 m of 2.375″
Power Pack	250 HP diesel	400 HP diesel	600–800 HP diesel
Hydraulic Reservoir	150 gal	250 gal	400 gal
Control Cabin	Enclosed, ground level	Enclosed, elevated	Enclosed, elevated
Transport Width	8.5 ft (2.6 m)	8.5 ft (2.6 m)	8.5 ft (2.6 m) – modular skids
Total Weight (dry)	~35,000 lbs	~55,000 lbs	~85,000 lbs

Product Types – Choose Your Mounting Style

We offer three primary mounting configurations. Each has advantages depending on your well access, road regulations, and budget.

1. Skid-Mounted Coiled Tubing Units

• Best for: Offshore platforms, permanent installations, or locations with crane access

• Advantages: Compact footprint (as small as 20ft x 8ft), corrosion-resistant coating, easy to stack

• Transport: Flat rack or container ship – fits ISO container footprint

2. Trailer-Mounted Coiled Tubing Units

• Best for: Onshore wells with paved or gravel roads, low-cost mobilization

• Advantages: Lower cost than truck-mounted, can be left on site with tractor removed

• Transport: Single or dual-axle trailers, highway legal (8.5ft width)

3. Truck-Mounted Coiled Tubing Units

• Best for: Remote locations, rough terrain, rapid well-to-well moves

• Advantages: All-in-one mobility, no separate tractor needed, 4×4 or 6×6 options

• Transport: Self-propelled, top speed ~50 mph (80 km/h)

4. Custom / Hybrid Designs

Need something different? We’ve built:

• Helicopter-liftable skids (sub-5,000 lbs modules)

• Dual-rig CTUs (two injectors on one power pack for parallel operations)

• Low-profile units for barn or garage wellheads

Applications – What Our CTUs Run Every Day

Our coiled tubing units are deployed across a wide range of well intervention and light drilling operations:

• Sanding / fill cleanout – circulating water, nitrogen, or foam

• Acid stimulation & matrix treatment – precise fluid placement

• Milling – cast iron bridge plugs, composite plugs, scale

• Fishing – using CT-conveyed tools (overshots, spears, magnets)

• Velocity string installation – for gas well deliquification

• Logging & perforating – with electric line or fiber through CT

• Through-tubing drilling – re-entry and slim hole sidetracking

• Cementing – squeeze jobs and plug setting

Why Choose SJ Petro for Your Coiled Tubing Unit?

Because you need a supplier who answers the phone when something breaks at 2 AM.

Concern	SJ Petro’s Answer
"Lead times from big brands are 8–12 months.”	We deliver in 90–120 days. Need it faster? Ask about our expedited build (60–70 days).
"Spare parts take weeks to arrive.”	We stock critical spares (chains, gripper blocks, seals, valves) and ship DHL/FedEx within 24 hours.
"Our local technicians aren’t familiar with your equipment.”	We provide full documentation, video libraries, and optional onsite training.
"We need financing or lease options.”	We work with lease partners or offer milestone payments (30/40/30).
"Your price seems too low – what’s the catch?”	No catch. We’re a direct manufacturer with lower overhead, not a rebrander. The quality is field-proven.

More reasons to work with us:

• Sinopec Group backing – financial security and deep oilfield engineering DNA

• API Q1 and ISO 9001 certified manufacturing – audited processes, not just paper

• Global reference list – Saudi Aramco, Kuwait KOC, Oman PDO, Rosneft, and major Chinese operators

• One-stop shop – We supply the CTU plus coiled tubing strings, downhole tools, and BOP. Coordinated delivery, single PO.

Frequently Asked Questions (FAQ)

Q1: What’s the difference between a skid-mounted and a trailer-mounted CTU?

A: Skid-mounted units require a crane for placement and are ideal for offshore platforms or permanent pads. Trailer-mounted units have axles and road lights – you tow them with a tractor, then disconnect at the wellsite. Trailers are cheaper to build but require more space to maneuver.

Q2: Can you build a CTU for 3″ coiled tubing?

A: Yes. Our heavy CTU (80k–100k lb injector) handles up to 3.5″ OD tubing. We’ll adjust the reel core diameter, injector chains, and BOP interface accordingly.

Q3: How long does it take to train a crew on your equipment?

A: A new crew typically becomes proficient in 3–5 days of classroom and field practice. We provide training materials, and our field service engineer can stay on site for your first two jobs.

Q4: What certifications do your CTUs carry?

A: Standard – CE mark for European markets. Optional – API 4F (hoisting equipment), DNV 2.7-1 (offshore containers), ABS, or customer-specified third-party inspection (e.g., BV, Lloyds).

Q5: Do you offer remote technical support?

A: Yes. We can connect via video call to your wellsite and walk your crew through diagnostics. Many issues are resolved without a site visit.

Q6: What is the typical fuel consumption of your diesel-powered CTU?

A: Approximately 8–12 gallons per hour (30–45 L/h) at normal operating load (circulating, light pulling). Heavy milling or deep pulling increases consumption to ~15–18 gph (57–68 L/h). Electric drive models use 90–150 kW.

Q7: Can you customize the control cabin for left-hand or right-hand operation?

A: Absolutely. We build left-hand, right-hand, or center mount. Also can add extra displays, remote stop pendants, or data recording.

Q8: How do I know which pull capacity I need?

A: Send us your well profile (depth, deviation, tubing size, maximum anticipated pull during fishing or milling). We use industry-standard force modeling software and will recommend a specific injector rating – with a written calculation.

Q9: Do you have used or refurbished CTUs for sale?

A: Occasionally. We sometimes take trade-ins from customers upgrading their fleet. Contact us to ask about current availability.