Low temp drilling technology

Technical Specifications – Low Temperature Drilling Rigs

All units designed for continuous operation at -45°C and storage at -60°C.

Parameter	ZJ40 Low Temp	ZJ50 Low Temp	ZJ70 Low Temp	ZJ90 Low Temp
Nominal Drilling Depth (4‑½″ DP)	2,500–4,000 m (8,200–13,120 ft)	3,500–5,000 m (11,480–16,400 ft)	4,500–7,000 m (14,760–22,970 ft)	6,000–9,000 m (19,680–29,530 ft)
Max Hook Load	2,250 kN (506,000 lbf)	3,150 kN (708,000 lbf)	4,500 kN (1,012,000 lbf)	6,750 kN (1,517,000 lbf)
Drawworks Rated Power	735 kW (1,000 HP)	1,100 kW (1,500 HP)	1,470 kW (2,000 HP)	2,210 kW (3,000 HP)
Operating Temperature	-45°C to +45°C	-45°C to +45°C	-45°C to +45°C	-45°C to +45°C
Storage Temperature	-60°C to +45°C	-60°C to +45°C	-60°C to +45°C	-60°C to +45°C
Mast Height (K-type)	41.5 m	43–45.5 m	48 m	48 m
Rotary Table Opening	698.5 mm (27‑½″)	952.5 mm (37‑½″)	952.5 mm (37‑½″)	952.5 mm (37‑½″)
Drilling Line Diameter	32 mm (1‑¼″)	35 mm (1‑⅜″)	38 mm (1‑½″)	45 mm (1‑¾″)
Mud Pump Configuration	2× F-1300 HP	2× F-1600 HP	2–3× F-1600 HP	3× F-1600 HP
Drive Type	AC-VFD / DC-SCR	AC-VFD / DC-SCR	AC-VFD	AC-VFD
Main Brake	Hydraulic disc brake	Hydraulic disc brake	Hydraulic disc brake	Hydraulic disc brake
Auxiliary Brake	Dynamic / eddy current	Dynamic / eddy current	Dynamic / eddy current	Dynamic / eddy current

Product Types – Our Low Temperature Drilling Technology Portfolio

We do not offer just one low-temperature rig. We offer a complete ecosystem of low temperature drilling solutions across multiple product categories:

1. Low Temperature Truck-Mounted Drilling Rigs – ZJ40 units (225T hook load, 4,000m depth) delivered to Russia with cold-weather material and heat preservation process technology

2. Low Temperature Wheel-Rail Drilling Rigs – For cluster drilling in permafrost zones without rig-down between wells

3. Low Temperature Modular Skid Rigs – Helicopter-portable modules for true remote access

4. Low Temperature Coiled Tubing Units – Proven in Surgut, Russia for -45°C operations including sand cleanout, wax removal, and nitrogen lifting

5. Low Temperature Workover Rigs (XJ Series) – XJ150 through XJ1200 with max static load from 585 kN to 2,250 kN

6. Low Temperature Solids Control Systems – Tank-integrated heating and insulation for mud recycling at -45°C

7. Low Temperature Wellhead & BOP Control Systems – Hydraulic and electric systems with low-temp-rated seals and heating jackets

Application Fields

🌨️ Arctic and Sub‑Arctic Land Drilling

Our primary market is West and East Siberia, the Timan-Pechora region, Northern Canada, and Alaska’s North Slope. We have successfully delivered and commissioned 11 low-temperature drilling rigs to Rosneft, establishing SJ Petro as a leader in the Russian low-temperature drilling equipment market.

🧊 Permafrost Cluster Drilling

For fields requiring multiple closely-spaced wells, our wheel-rail low-temperature rigs allow the entire drilling package to skid from wellhead to wellhead without dismantling major components — saving weeks of operational time in extreme cold.

🚚 Remote Single-Well Exploration

For exploration wells far from infrastructure, our truck-mounted low-temperature configurations combine mobility with full winterization — drive in, heat up, drill, and move to the next prospect.

🏔️ High‑Altitude Cold Regions

Altitude does not exempt you from cold-weather engineering. Our low-temperature drilling technology is suitable for the Kunlun Mountains, Andes, and Himalayan foothills, where temperatures drop below -35°C regardless of the season.

🌊 Offshore Arctic Platforms

Our offshore-rated low-temperature packages are designed for ice-strengthened platforms and bottom-supported structures, meeting both marine corrosion protection and extreme cold requirements.

Why Choose SJ Petro for Low Temperature Drilling Technology?

🏭 Backed by Sinopec – The Real Manufacturing Base

We are not a trading company. We are the actual manufacturing base for Sinopec Oilfield Equipment Corporation’s drilling rig production line, with over 200 product models across four major categories and 12 series. Our annual production capacity includes 100 drilling rigs, 100 workover rigs, 120 cementing units, 80 fracturing units, and over 150,000 high-pressure manifolds.

✅ Field-Proven in the Harshest Markets

Our low-temperature drilling technology has been exported to Russia, Kazakhstan, the Middle East, South America, the United States, and Canada. We delivered 11 low-temperature drilling rigs to Rosneft, including the ZJ40DB low-temperature drilling rig package, establishing our position as a leader in the Russian low-temperature drilling market. Our SZJ30 low-temperature truck-mounted drilling rig has operated for Schlumberger in Russia.

🧪 National-Level Laboratory Validation – No Guesswork

That national-level low-temperature impact testing laboratory is not just a marketing line. It is a real facility where every batch of critical steel is tested to -60°C before it goes into your rig. We even wrote China’s national design standard for low-temperature drilling rigs. You can trust our technology because we have proven it — on paper and in the field.

🔧 End-to-End Integrated Service

We provide:

• Pre-sale engineering consultation and well planning support

• On-site installation supervision and commissioning

• Crew training for low-temperature operation and emergency procedures

• Long-term spare parts supply with dedicated cold-weather component inventory

• 24/7 technical support hotline with overseas representative offices in key markets

📋 Full Certification Package

We can provide a complete set of certification in accordance with API, GOST, and CE. Our manufacturing process is open to customer-witnessed testing and third-party inspection by any certification body (DNV, BV, ABS, etc.).

Frequently Asked Questions (FAQ)

Q1: What is the lowest operating temperature your low-temperature drilling technology guarantees?

A: Our standard low-temperature drilling rigs are guaranteed for continuous operation down to -45°C. Storage capacity extends to -60°C without material degradation. For projects requiring operation below -45°C, our engineering team can perform site-specific thermal modeling and recommend custom modifications — contact us with your requirements.

Q2: Can you provide GOST certification for Russian customs clearance?

A: Yes. We design and manufacture to GOST 12.2.141-99 and GOST 16293-89 requirements. All necessary certification packages for Russian import and field acceptance are available upon request.

Q3: What is the typical lead time for a complete low-temperature drilling rig?

A: Standard lead time is approximately 8–10 months from order confirmation to FOB port shipment, depending on rig size and customization level. We maintain a dedicated green channel for low-temperature component sourcing to ensure delivery meets seasonal drilling windows.

Q4: How do you validate the cold-temperature performance of steel components?

A: Every critical load-bearing component is sampled and tested in our national-level low-temperature impact testing laboratory. We test for Charpy impact values at -45°C to -60°C, depending on application. Test reports are included with each rig shipment and available for customer witnessing.

Q5: What configurations are available for cluster drilling in permafrost?

A: We offer wheel-rail low-temperature drilling rigs designed specifically for cluster drilling. The entire rig package moves from well to well on built-in rail systems without breaking down mast, drawworks, or mud systems — dramatically reducing non-productive time in extreme cold.

Q6: Do you offer helicopter-portable low-temperature drilling rigs?

A: Yes. Our helicopter-portable modular rigs break down into sling-loadable modules (compatible with Mi-17 class and similar) for true remote-area access. Each module includes all necessary heating interfaces for rapid field reassembly.

Q7: What after-sales support do you provide for international buyers?

A: We provide a standard 12-month warranty from commissioning. On-site technical representatives are available for the initial rig-up. We maintain an international spare parts inventory and operate a 24/7 technical support hotline. For key markets, we have local field service presence through our overseas representative offices.

Q8: Can I witness the low-temperature testing of my equipment before shipment?

A: Absolutely. Our manufacturing process is open to customer-witnessed testing and inspection. We welcome your engineers to visit our facility in Jingzhou, Hubei province, and witness the low-temperature impact testing and full system commissioning before your rig ships.