Standard oil drilling rigs

Technical Specifications (ZJ Series Standard Oil Drilling Rigs)

The following table presents the full ZJ series of standard oil drilling rigs available from SJ Petroleum Machinery. These are our core production models—well-established configurations that have been refined through decades of manufacturing and field deployment.

Model	ZJ10 / 1125CZ	ZJ15 / 1350CZ	ZJ20 / 1580CZ	ZJ30 / 1800CZ	ZJ40 / 2250CZ
Nominal Depth (4½" DP)	1,000 m	1,500 m	2,000 m	3,000 m	4,000 m
Max Static Hook Load	1,125 kN	1,350 kN	1,580 kN	1,800 kN	2,250 kN
Engine	CAT C9	CAT C15	CAT C18	2×CAT C15	2×CAT C18
Transmission	Allison 4700 OFS	Allison S5610HR	Allison S6610HR	2×Allison S5610HR	2×Allison M6620AR
Carrier Drive Type	8×6	10×8	12×8	14×8	14×10
Line Strung	4×3	5×4	5×4	6×5	6×5
Power Rating	350 hp	540 hp	630 hp	2×540 hp	2×630 hp
Mast Height	29 m	33 m	35 m	36 m	38 m
Drilling Line Diameter	26 mm	26 mm	29 mm	29 mm	32 mm
Certifications	API 4F, 7K, 8C, ISO 9001, HSE
Travel Speed (max)	45 km/h (governed)
Operating Temp Range	-35°C to +50°C (optional cold/desert packages available)

Applications

Our standard oil drilling rigs have been deployed across a wide range of operating environments and well types. Here’s where they’ve proven themselves most effective.

1 Onshore Oil & Gas Development Drilling

This is the core application for our ZJ series rigs. Development drilling programs in established fields, infill wells between producing zones, and shallow-to-medium depth exploration campaigns all benefit from the self-mobilizing capability and rapid rig-up time of our truck-mounted standard rigs. The ZJ10 through ZJ30 rigs are particularly well-suited for onshore programs where wells are measured in thousands of meters, not tens of thousands.

2 Remote & Infrastructure-Limited Locations

When the nearest paved road is 200 kilometers behind you, a rig that can drive itself onto location becomes essential. Our standard drilling rigs have worked in jungle environments, mountain terrain, desert outposts, and arctic tundra—places where bringing in a conventional rig would require building an access road first.

3 Water Well & Geothermal Drilling

Rural water supply projects, agricultural irrigation, municipal water systems, and geothermal gradient wells are all within the capability of our lighter ZJ10 through ZJ20 rigs. The self-contained design eliminates the need for support vehicles on small-to-medium diameter wells, making these rigs exceptionally cost-effective for water well contractors and geothermal developers.

4 Well Workover & Intervention

Equipped with a rotary table and appropriate tooling, our standard drilling rigs function as dual-purpose machines for heavy workover and well intervention operations. The XJ series (sibling product line) is more specialized for dedicated workover service, but our ZJ rigs can handle significant workover duty when needed.

5 Extreme Climate Operations

SJ has delivered standard drilling rigs to some of the most challenging environments in the world. Cold-weather configurations for arctic and Siberian conditions are designed for normal operation from +45°C down to -45°C and storage down to -60°C, with low-temperature lubricants, heated enclosures, and specially treated materials. Desert configurations for Middle Eastern and North African operations feature enhanced cooling systems, sand and dust filtration, reinforced sealing against fine particulate intrusion, and wide-track tires for soft sand mobility.

Product Types – Standard Configurations

SJ offers several distinct configurations of standard oil drilling rigs, each optimized for specific operating conditions and well depths.

1 ZJ Series Truck-Mounted Drilling Rigs (Core Standard Line)

The ZJ series is our flagship standard offering for mobile drilling operations. Depth capabilities range from 1,000 meters (ZJ10) up to 4,000 meters (ZJ40). These rigs are self-propelled on custom heavy-duty chassis and are designed for rapid relocation between well pads, infill drilling programs, and remote exploration campaigns. Each ZJ rig is built to a well-established specification—these are the rigs we've been refining for decades.

2 Standard Configurations by Depth Class

Depth Class	Corresponding Models	Typical Application
Shallow (1,000–1,500 m)	ZJ10, ZJ15	Water wells, shallow oil development, exploration
Medium (2,000–3,000 m)	ZJ20, ZJ30	Conventional oil & gas development, infill drilling
Deep (4,000 m)	ZJ40	Deep exploration, heavy development drilling

3 Climate-Specialized Standard Configurations

Cold-Weather Standard Package: Designed for operation down to -45°C and storage down to -60°C. Features include low-temperature lubricants, heated operator enclosures, freeze-protected hydraulic systems, and specially treated structural materials for low-temperature toughness.

Desert Standard Package: Designed for continuous operation in +50°C ambient temperatures with high dust loads. Features include enhanced engine cooling systems, high-efficiency sand and dust filtration, reinforced seals, and wide-track tire configurations for soft sand mobility.

4 Dual-Purpose Configurations

For operators who need both drilling and workover capability from a single machine, SJ can configure standard ZJ series rigs with rotary table equipment and workover tooling. This dual-purpose configuration eliminates the need to maintain separate fleets for drilling and well service, reducing capital and operating costs.

Why Choose SJ Petroleum Machinery for Standard Oil Drilling Rigs?

If you’re in the market for standard oil drilling rigs, you’ve probably seen dozens of manufacturers claiming to be "the best.” Here’s the unvarnished truth about what sets SJ apart.

✅ Sinopec Backing – Stability That Matters

SJ Petroleum Machinery is a wholly-owned subsidiary of Sinopec Oilfield Equipment Corporation, which is itself part of Sinopec Group—a Fortune Global 500 company and one of the world’s largest integrated energy enterprises. That’s not a marketing claim; it’s a matter of public record. What it means for you is simple: SJ has the financial stability to honor warranties, the supply chain depth to deliver on schedule, and the long-term commitment to support your rig for years after the sale. When you buy from SJ, you’re buying from a company that will be here next year, and the year after, and the year after that.

✅ 80+ Years of Continuous Manufacturing – Not a Startup

SJ was founded in 1941 in Lanzhou. We relocated to Jingzhou in 1969 to support the Jianghan Oilfield Battle. We began petroleum equipment production in 1980 after introducing seven key manufacturing technologies from the United States. That’s over eight decades of uninterrupted manufacturing experience—longer than most of our competitors have existed. Our standard drilling rig designs are not prototypes. They are mature, field-proven configurations that have been refined through continuous feedback from operators on six continents.

✅ API Monogram Holder – Credentials That Survive Audit

SJ holds API monogram licenses for Spec 4F (drilling and well servicing structures), Spec 7K (drilling equipment), and Spec 8C (derricks and masts), plus API Q1, ISO 9001, and HSE management system certifications. These are not decorative badges. Each API license subjects our facility to regular third-party audits covering design verification, material traceability, manufacturing processes, and quality control documentation. When your regulatory authority demands proof of compliance, SJ provides documentation that passes scrutiny.

✅ Real Manufacturing Capacity – 100 Drilling Rigs Per Year

SJ currently produces approximately 100 drilling rigs annually across our 50,000-square-meter assembly yard, which features 24 rigging-up positions and two offshore rig commissioning sites capable of testing up to 750 tons. We operate seven dedicated production lines covering drawworks, gear boxes, cylinders, masts, high-pressure manifolds, plunger pumps, and post-treatment processes. That’s not theoretical capacity—it’s what we ship every year. When you place an order, you’re not waiting for us to figure out how to build your rig. You’re moving into the next available slot in an already-running production line.

✅ Standardization Without Rigidity

The phrase "standard oil drilling rig” can mean different things to different manufacturers. For some, it’s an excuse to offer only one configuration with no flexibility. For SJ, standard means the core engineering is proven and certified—but we still offer climate packages, drivetrain options, and component choices that let you match the rig to your specific conditions without reinventing the wheel.

✅ Global Export Track Record – We Know How to Ship

SJ has delivered standard drilling rigs to the United States, Canada, Russia (including cold-weather configurations for Orenburg), Kuwait, the Middle East, West Africa, Southeast Asia, and throughout the Asia-Pacific region. We understand export documentation, customs clearance, port logistics, and compliance with local import regulations. We’ve shipped DDP (Delivered Duty Paid) to Russia, handling all customs and import charges on behalf of our customer. We can ship to your location, wherever it is.

✅ Competitive Pricing Without Quality Compromises

Here’s the honest assessment: SJ is not the cheapest manufacturer on the market. The cheapest rigs cut corners on materials, skip certifications, and use components that are difficult to service. But because we are part of Sinopec with an integrated, in-house supply chain, we don’t pay middleman markups. You pay for a rig that meets API specifications, uses Caterpillar and Allison components, and comes from a manufacturer with 80 years of experience. The result is a rig that competes on quality with Western manufacturers at a price point that makes economic sense.

✅ Factory Testing Before Shipment

Every standard drilling rig SJ builds is fully assembled, pre-wired, pre-piped, and pressure-tested at our Jingzhou facility before it ships. You can witness factory acceptance testing before making final payment—and you should. Seeing the rig run on our yard gives you confidence that it will run on your wellsite.

Frequently Asked Questions (FAQ)

Q1: What exactly do you mean by "standard oil drilling rig”?

When we say "standard,” we mean a rig that is designed and manufactured to well-established specifications using field-proven components, certified to API standards, and configurable within a predictable framework. Standard rigs offer predictable pricing, predictable lead times, and predictable performance. They are the opposite of "one-off experimental” or "fully custom” rigs. Most operators find that a well-chosen standard configuration meets 95% of their needs at a lower cost and with faster delivery than a fully custom design.

Q2: What certifications do your standard drilling rigs carry?

SJ standard drilling rigs are designed and manufactured in accordance with API Spec 4F (structures), API Spec 7K (drilling equipment), and API Spec 8C (derricks and masts). Our manufacturing facilities hold API Q1, ISO 9001, and HSE management system certifications. These certifications are subject to regular third-party audits.

Q3: What is the typical lead time for a standard drilling rig from SJ?

Lead times vary by model, but standard ZJ series rigs (ZJ30, ZJ40) typically require 8 to 12 months from order confirmation to delivery. Because these are standard configurations—not custom one-offs—we can usually provide more accurate delivery estimates and shorter lead times than fully custom manufacturers. Please contact our sales team with your specific timeline requirements.

Q4: What’s included in the purchase price of a standard drilling rig?

The standard package includes the complete rig assembly (carrier chassis, mast, drawworks, power system, transmission, driller’s cabin, and all integrated hydraulics and electrical systems), API certification documentation, factory acceptance testing (witnessed by the customer), and export packaging. Additional services—on-site commissioning, operator training, spare parts kits, extended warranties, and field service support—are available as separate line items. We recommend requesting a comprehensive quotation that clearly itemizes all inclusions.

Q5: Can I witness factory acceptance testing before my rig ships?

Absolutely. In fact, we encourage it. SJ accommodates customer witness of factory acceptance testing at our 50,000-square-meter assembly yard in Jingzhou. Witnessing the test allows you to verify that the rig meets specifications, identify any adjustments needed before shipment, and build confidence in the equipment before final payment.

Q6: How are the rigs shipped internationally?

SJ has extensive experience in international shipping. Standard drilling rigs are broken down into transport modules, packaged according to your destination’s customs and shipping requirements, and transported either by container vessel or roll-on/roll-off (Ro-Ro) shipping. We coordinate all export documentation, customs declarations, and port logistics. For qualifying projects, we can also arrange delivery under DDP (Delivered Duty Paid) terms, handling customs clearance and import charges on your behalf.

Q7: What after-sales support do you provide?

Every standard drilling rig purchase includes comprehensive technical documentation (operation manuals, parts lists, maintenance schedules, electrical and hydraulic schematics). Remote technical support is available via email, phone, and video. On-site commissioning and operator training are available upon request. Spare parts are stocked at SJ’s global warehousing locations, with additional inventory maintained at our Jingzhou facility for rapid air or sea shipment.

Q8: Can your standard rigs be customized for extreme cold or desert conditions?

Yes. SJ offers standard climate packages that modify our standard rigs for specific environmental conditions without turning the project into a full custom engineering effort. The cold-weather package includes low-temperature lubricants, heated enclosures, freeze-protected hydraulics, and specially treated structural materials for operation down to -45°C. The desert package includes enhanced cooling systems, sand filtration, reinforced seals, and wide-track tire configurations for operation in +50°C environments.

Q9: What’s the difference between your standard truck-mounted rigs and your BigEasy series?

Standard ZJ series rigs are self-propelled truck-mounted units designed for conventional road mobility and hydraulic mast erection. The BigEasy series is a trailer-mounted crane-free design jointly developed with LOADMASTER, optimized for ultra-fast mobilization between closely spaced well pads. Both are standard products, but they serve different operational needs. If you’re drilling cluster wells on a single pad, the BigEasy may be the better choice. If you’re moving between dispersed well locations over road networks, the ZJ truck-mounted series is likely your best fit.

Q10: Do you offer dual-purpose (drilling + workover) configurations?

Yes. Standard ZJ series rigs can be configured with rotary table equipment and workover tooling to function as dual-purpose machines for both new drilling and well intervention operations. This dual-purpose configuration is particularly cost-effective for operators who need flexibility without maintaining separate fleets.

Q11: How does SJ compare to other standard drilling rig manufacturers like BOMCO or RG Petro?

SJ is not the largest Chinese manufacturer—BOMCO holds that position. But SJ has three specific advantages that matter to many buyers. First, our specialization in mobile standard rigs means we’ve refined these specific products over decades. Second, as a Sinopec subsidiary, we offer the financial stability and compliance assurance that independent manufacturers cannot match. Third, our integrated manufacturing gives us tighter control over quality and delivery timelines. If you need the absolute lowest price, there are cheaper options. If you need a rig that works, has proper API certifications, will be supported after the sale, and comes from a company with a real track record and Sinopec backing, SJ is the right choice.

Q12: Can you provide references from customers using your standard rigs in my region?

Yes. SJ can provide references from customers in Russia (Orenburg region cold-weather ZJ40 rigs), Kuwait (desert configuration rigs), and multiple other international operating regions, subject to customer privacy agreements. Please discuss your specific operating region with our sales team so we can direct you to the most relevant reference customers.