Land drilling equipment

Technical Specifications — Full Range Reference

Here’s a consolidated technical reference covering the key parameters across our land drilling equipment portfolio. All specifications represent standard configurations; final parameters are customized per project.

Parameter	Light‑Medium Rigs	Medium‑Heavy Rigs	Heavy‑Ultraheavy Rigs
Drilling depth (4‑1/2″ DP)	1,000‑3,000 m	3,000‑5,000 m	5,000‑9,000+ m
Max hook load (kN / tons)	585‑1,350 kN (60‑135 t)	1,350‑3,150 kN (135‑315 t)	3,150‑9,000 kN (315‑900 t)
Installed power (HP)	235‑550 HP	550‑1,500 HP	1,500‑3,000+ HP
Drive options	Mechanical / AC‑VFD	Mechanical / AC‑VFD / DC	AC‑VFD / DC
Mast type	Telescoping / K‑type	K‑type	K‑type / modular
Mast height	27‑34 m	34‑45 m	45‑52 m
Mobility type	Truck‑mounted / trailer	Truck‑mounted / skid / modular	Skid / modular / walking
Transport width	≤2.5 m	≤2.5‑3.1 m	Modular (≤2.5 m per module)
Module weight	≤15‑20 tons (truck integrated)	≤20 tons (heli‑liftable available)	≤20 tons per module
Rig‑up time	1‑3 days	3‑7 days	5‑10 days
Environmental range	–30°C to +55°C	–45°C to +55°C (arctic spec)	–45°C to +55°C
API compliance	Q1, 4F, 7K, 8C	Q1, 4F, 7K, 8C	Q1, 4F, 7K, 8C
Certifications	ISO 9001, HSE	ISO 9001, HSE, ABS/DNV (opt)	ISO 9001, HSE, ABS/DNV

Where Our Land Drilling Equipment Is Deployed

Our rigs are operating in more than 30 countries across North America, Russia and Central Asia, the Middle East and North Africa, Southeast Asia, and Africa. Here’s where they’re being used, and why.

1. Conventional Oil and Gas Development Wells

This is the bread and butter. From the Permian Basin to the Middle East, conventional onshore reservoirs still represent the majority of drilling activity worldwide. Land drilling rigs are stationary onshore units used to drill into the earth for oil and gas extraction .

How SJ Petro helps: Our ZJ30 through ZJ70 series rigs are purpose‑designed for conventional development. You choose the depth rating that matches your reservoir, the drive system that fits your power infrastructure, and the mobility configuration that works with your pad layout.

2. Shale Gas and Tight Oil Multi‑Well Pads

Unconventional drilling has completely changed the economics of onshore operations. A single pad may hold 8, 12, or even 16 wells drilled in sequence. Without the ability to move efficiently between wellheads, the cycle time kills your project economics.

How SJ Petro helps: Our skid‑mounted and modular rigs support integral dragging movement of the main unit, allowing operators to move the rig efficiently between wellheads on cluster well pads . The smaller footprint works well in mature oilfields, desert blocks, and pad drilling sites where space is limited .

3. Deep and Ultra‑Deep Well Drilling (5,000‑9,000+ m)

Deep wells push equipment to its limits — high hook loads, long hoisting cycles, high temperatures at depth. You can't spec down on a deep well without risking failure at 6,000 m.

How SJ Petro helps: Our ZJ90 and ZJ120 ultra‑deep rigs are built for these conditions. Maximum hook loads up to 6,750‑9,000 kN. Mast heights up to 52 m for triple stands. AC‑VFD drive systems for precise speed and torque control. All API Q1, 4F, 7K, 8C certified.

4. Remote and Road‑Limited Locations (Jungle, Mountain, Arctic)

If there’s no highway leading to the wellsite, conventional truck‑mounted rigs can't get there. But the reserves still need to be developed.

How SJ Petro helps: Our modular rigs break down into helicopter‑liftable modules (≤10 tons per module) for transport into roadless locations. We’ve done this for jungle operations in Southeast Asia and arctic tundra in Russia. For mountainous regions, we offer compact mountainous drilling rigs with a footprint small enough to navigate tight forest roads and narrow drilling platforms .

5. Arctic and Sub‑Arctic Drilling (–45°C to –60°C)

When the temperature drops below –40°C, ordinary steel becomes brittle, seals crack, hydraulic fluid thickens, and electronics fail. You cannot operate a standard rig in the Russian arctic or Canadian north without cold‑weather engineering.

How SJ Petro helps: Our cold‑weather drilling rigs use low‑temperature materials and are designed to operate reliably at –45°C to –60°C . We have exported these rigs to Russian state oil companies for arctic field development. Features include heated enclosures for critical electronics, arctic‑rated seals and hoses, specialized lubricants, and insulated fluid systems.

6. Geothermal Energy and Water Well Drilling

Beyond oil and gas, our land drilling rigs are used for geothermal energy projects and large‑scale water well drilling. These applications require the same reliability as oilfield drilling — often in remote locations with limited support infrastructure.

How SJ Petro helps: Our ZJ30 and ZJ40 rigs are well‑suited for geothermal and water well applications, with depths up to 3,000‑4,000 m and the same API certifications required for international geothermal tenders.

What Sets SJ Petro Land Drilling Equipment Apart

Here’s the straightforward case for choosing us — based on what actually matters when you're running a drilling program.

1. Over 80 years of continuous manufacturing. We started building drilling equipment in 1941. Our product lines now cover 200+ models across 12 series, including drilling rigs, workover equipment, fracturing units, offshore systems, and high‑pressure fluid controls. That’s not a startup trying to figure things out.

2. A wholly‑owned subsidiary of Sinopec. That means our rigs are validated in China's toughest basins — Shengli, Jiangsu, Tarim — before they ever reach export markets. You’re not our beta tester. The same rigs that drilled in China's most challenging fields are the ones we export to you.

3. Full API certification for international procurement. API Q1 (Quality Management), API 4F (Drilling and Well Servicing Structures), API 7K (Drilling Equipment), and API 8C (Hoisting Equipment) — we meet the standards that every serious tender requires . For offshore or marine applications, we can provide ABS, DNV, or CCS certification upon request.

4. Globally supported powertrain. Caterpillar diesel engines. Allison automatic transmissions. KOBELT disc brake systems. These are components your mechanics already know how to service, and parts are stocked in every oil‑producing region. The ZJ40, for example, runs on dual Cat C18 engines (630 HP each) with Allison M6620AR transmissions .

5. Field‑proven in extreme environments. Cold‑weather operation at –45°C — already delivered to Russian arctic projects. Desert operation at +55°C — proven in Saudi Arabia and the UAE. Modular designs for helicopter transport — delivered to jungle and arctic locations.

6. Complete IP ownership. Our rig designs, control systems, and hydraulic systems are自主研发 (independent R&D) with full intellectual property rights. No third‑party licensing fees. No technology transfer restrictions. No foreign vendor lock‑in.

7. Cost‑effective without corner‑cutting. Our land drilling rigs typically cost 30–40% less than comparable Western brands — not because we compromise on quality, but because we control our own manufacturing, maintain lean operations, and don't charge a brand premium.

8. Global track record — 3,000+ international transactions. Our equipment has been exported to more than 30 countries. We understand export logistics, customs documentation, and cross‑border technical support. The XJ650 is highly popular among users across South America, Western Africa, and the Middle East.

9. Full life‑cycle support. We’ve established a high‑quality supply chain to ensure full‑life service — spare parts availability, remote diagnostics, field service engineers, and comprehensive training for your crews.

10. Made in China, designed for the world. We’re a National Hi‑tech Enterprise and China Critical Technological Equipment Nationalization Base. But our rigs are built to international API standards — not Chinese domestic specs. Every export rig is tested and certified for the destination country's regulatory framework.

Frequently Asked Questions (FAQ)

Q1: What drilling depth ranges do your land drilling rigs cover?

Our land drilling rigs cover depths from 1,000 m to 9,000 m and beyond, with maximum hook loads from 585 kN to 9,000 kN depending on the model. Lightweight rigs (light weight) are rated up to about 2 km; medium‑weight rigs up to 4 km; heavy‑weight rigs up to 6 km; and ultra‑heavy rigs for higher depths .

Q2: What’s the difference between your truck‑mounted and skid‑mounted rigs?

Truck‑mounted rigs (like the ZJ40) are self‑propelled on a heavy‑duty chassis — they drive to location under their own power, stabilize, raise the mast, and start drilling. Rig‑up time is 1‑3 days. Skid‑mounted rigs are transported as modules on flatbed trucks, then assembled on location. They offer better modularity and helicopter‑transport options, but require a crane for assembly. Choose truck‑mounted for fast‑cycle programs and skid‑mounted for remote or pad‑drilling applications.

Q3: Are your rigs API certified? Which specifications?

Yes. Our drilling rigs are designed and manufactured in accordance with API Spec Q1 (Quality Management), API 4F (Drilling and Well Servicing Structures), API 7K (Drilling Equipment), and API 8C (Hoisting Equipment) . We also maintain ISO 9001 and HSE certifications. For offshore applications, we can provide ABS, DNV, or CCS certification upon request .

Q4: What engines do you use, and are parts available globally?

We use Caterpillar diesel engines (C9, C13, C15, C18, C27, C32 models) paired with Allison automatic transmissions (various models including 4700, 4500, M5610AR, M6620AR) and KOBELT disc brake systems. These are globally available components with established parts and service networks in every major oil‑producing region.

Q5: Can your rigs operate in extreme cold or desert heat?

Yes. Standard operating range is –20°C to +55°C. Our cold‑weather (arctic) rigs operate at –45°C continuous and store at –60°C — proven in Russian arctic deployments. Our desert rigs feature enhanced cooling systems, sealed electronics, and dust‑proof filtration for +55°C ambient operation.

Q6: What's the rig‑up time for your land drilling rigs?

• Truck‑mounted rigs (ZJ30, ZJ40): 1‑3 days

• Skid‑mounted rigs: 3‑7 days

• Modular rigs (remote/helicopter): 5‑10 days

• Conventional rigs from other manufacturers often require 2‑4 weeks

Q7: Do you offer modular or helicopter‑transportable rigs?

Yes. Our modular skid‑mounted rigs can be broken down into modules weighing ≤20 tons (road‑legal) or ≤10 tons (helicopter‑liftable). We've delivered helicopter‑transportable configurations for jungle operations in Southeast Asia and arctic tundra in Russia.

Q8: Can your rigs be used for multi‑well pad drilling?

Absolutely. Our skid‑mounted rigs support integral dragging movement of the main unit, allowing efficient relocation between wellheads on cluster well pads . We also offer hydraulic skidding systems with stroke up to 12 m per cycle and ±5 mm positioning accuracy.