Series skid-mounted plunger pumps

Technical Specifications

SJ Petro offers a comprehensive range of skid-mounted plunger pumps. Below are key specifications for our most popular models:

Model	Type	Max Input Power	Max Rod Load	Stroke	Gear Ratio	Plunger Sizes	Applications
SERVA TPH 400	Triplex	600 bhp	175,800 lbs	8″	8.6:1	4″, 4-1/2″	Cementing, acidizing, fracturing, sand control
SERVA TPD/TPE 600	Triplex	600 hp	—	—	—	Various	Cementing, acidizing
SERVA QPA/QPE 1000	Quintuplex	1,000 bhp	100,000 lbs	6″	4.6:1	2-3/4″ to 4-1/2″	High-pressure well servicing, fracturing
SERVA QPE 1200	Quintuplex	1,000 bhp	100,000 lbs	6″	4.6:1	2-3/4″ to 4-1/2″	Continuous coiled tubing operations
3ZB-265	Triplex	—	—	—	—	—	Cementing
3ZB-300	Triplex	300 hp	—	—	—	—	Cementing, well service
3ZB-600	Triplex	600 hp	—	—	—	—	Cementing, well service
SJ-300	Triplex Mud Pump	300–350 hp	—	5″	4.31:1	5″	Mud pumping, drilling

Typical Skid-Mounted Pump Package Specifications:

Parameter	Typical Specification
Package Type	Skid-mounted (single or twin pump)
Engine	CAT C13 (475 hp) or C15 (540 hp) – optional
Transmission	ALLISON 4700 (or equivalent)
Plunger Pump	TPH400 (4″, 4-1/2″ plungers)
Max. Discharge Pressure	77.2 MPa (11,200 psi)
Max. Displacement	1.5 m³/min
Dimensions (L×W×H)	7,000 × 2,400 × (3,100–3,500) mm
Net Weight	14,000 kg
Operating Temperature	-20°C to +50°C
Certification	CCS, ABS, or DNV 2.7

Applications

SJ Petro’s Series Skid-Mounted Plunger Pumps are deployed across a broad spectrum of oilfield operations:

• Cementing Operations – Pumping cement slurry for well completion, including self-dispensing of cement slurry, slurry pumping, displacing slurry, and pressure testing

• Fracturing Operations – High-pressure injection of fracturing fluids for reservoir stimulation in deep, medium, and shallow wells

• Acidizing Operations – Pumping acid solutions for well stimulation and formation treatment

• Sand Control – Gravel packing and sand control operations

• Well Flushing & Workover – Well washing, cleanout, and light workover operations

• Water Injection – High-pressure water injection for enhanced oil recovery

• Coiled Tubing Operations – Continuous pumping for coiled tubing services

• Offshore Platform Operations – Skid-mounted configuration ideal for space-constrained offshore platforms

• Remote Land Operations – Desert and remote areas where vehicle access is limited

Product Types

SJ Petro offers skid-mounted plunger pumps in a wide variety of configurations:

By Pump Type:

1. Triplex Skid-Mounted Plunger Pumps – Three-cylinder configuration offering high displacement and straightforward maintenance. Models include TPH400, TPD/TPE 600, 3ZB-265, 3ZB-300, 3ZB-600, and SJ-300.

2. Quintuplex Skid-Mounted Plunger Pumps – Five-cylinder configuration offering smoother flow, reduced pulsation, and longer fluid end life. Models include QPA/QPE 1000 and QPE 1200.

By Power Configuration:

3. Diesel-Driven Skid-Mounted Pumps – Powered by Caterpillar diesel engines with Allison transmissions. Available with single engine/single pump or twin engine/twin pump configurations.

4. Electric-Driven Skid-Mounted Pumps – Variable frequency motor drive for quiet, emissions-free operation. Ideal for electrically-powered offshore platforms.

5. Hydraulic-Driven Skid-Mounted Pumps – Powered by hydraulic motors for integration with existing hydraulic power systems.

By Application Package:

6. Cementing Skids – Complete skid-mounted cementing units with mixing systems, ACM-IV.1 automatic control, and high-pressure pumping.

7. Fracturing Skids – High-power skids for fracturing and stimulation operations.

8. Acidizing Skids – Corrosion-resistant skids for acid pumping and well stimulation.

9. Sand Control Skids – Skids for gravel packing and sand control operations.

10. Twin Pump Skids – Dual-pump configurations for higher displacement and operational redundancy.

11. Offshore Skids – Marine-grade skids with CCS, ABS, or DNV 2.7 certification for offshore platform use.

12. Containerized Skids – Pumps housed in standard shipping containers for easy transport and deployment.

OEM & Customization Solutions

Every operation presents unique challenges, and SJ Petro’s engineering team delivers tailored solutions through our comprehensive OEM and customization capabilities:

• Custom Skid Design – We design skids to your exact specifications, including dimensions, weight, lifting points, and layout.

• Pump Selection – Choose from triplex or quintuplex configurations with the optimal plunger size, stroke, and gear ratio for your pressure and displacement requirements.

• Power System Integration – Select diesel, electric, or hydraulic drive with your preferred engine, motor, or transmission.

• Control Systems – Integrate manual, semi-automatic, or fully automatic control systems with data acquisition and remote monitoring.

• Material Selection – Specify corrosion-resistant materials for manifolds, valves, and fluid ends to match your pumping media.

• Certification – Arrange CCS, ABS, DNV 2.7, or other marine/offshore certifications.

• Climate Engineering – Customize for extreme temperatures, humidity, or environmental conditions.

• Twin Pump Configurations – Design twin-engine, twin-pump skids for high displacement and operational redundancy.

• Containerization – Package your skid in a standard shipping container for easy global transport.

Why Choose SJ Petro?

World-Leading Plunger Pump Manufacturer

SJ Petro is the world’s most famous manufacturing base for petroleum drilling and production equipment. We are the first Chinese manufacturer to develop skid-mounted offshore workover and cementing equipment. Our plunger pump production lines and three assembly lines for drilling, workover, and cementing/fracturing equipment represent decades of continuous investment and refinement.

Over 40 Years of Plunger Pump Expertise

SJ Petro began developing cementing and pumping equipment in the 1980s. With more than 30 years of continuous engineering and manufacturing experience, we have mastered the design and production of series plunger pumps, mixing control systems, and complete skid-mounted units.

Broadest Product Range in the Industry

SJ Petro offers skid-mounted plunger pumps across the full spectrum of oilfield applications—from 300 hp triplex pumps for shallow well cementing to 1,000 hp quintuplex pumps for deep-well fracturing and continuous coiled tubing operations. Maximum pressures range from 35 MPa to 100 MPa and displacements from 1,300 L/min to 4,200 L/min.

API-Certified Quality

SJ Petro holds API, ISO9001, and HSE management system certifications. Our designs and manufacturing processes comply with API specifications. Marine-grade skids are available with CCS, ABS, or DNV 2.7 certification.

Proven Global Track Record

SJ Petro’s skid-mounted plunger pumps and cementing equipment have been exported to Canada, Mexico, Kazakhstan, Turkmenistan, Syria, Cuba, and many other countries. Our offshore equipment has been deployed on platforms in Bohai Bay and other international offshore operations.

One-Stop Solution Provider

Beyond manufacturing, we offer equipment inspection, testing, and major overhaul services. From initial design to field service and spare parts supply, SJ Petro delivers complete oil and gas exploration and production equipment solutions.

Interchangeable Parts – Global Serviceability

SJ Petro’s plunger pumps feature wear parts that are interchangeable with major international brands, ensuring easy maintenance and global parts availability.

Frequently Asked Questions

Q: What is a skid-mounted plunger pump?

A: It is a complete pumping system—including the plunger pump, power source, transmission, and controls—mounted on a rugged steel skid. The skid can be easily lifted, transported, and positioned using standard lifting equipment. Skid-mounted configurations are ideal for offshore platforms, remote land operations, and locations where truck access is limited.

Q: What is the difference between triplex and quintuplex plunger pumps?

A: Triplex pumps have three cylinders and offer higher displacement per stroke with simpler maintenance—ideal for cementing, acidizing, and general well service. Quintuplex pumps have five cylinders and provide smoother flow with reduced pressure pulsation and longer fluid end life—ideal for continuous high-pressure operations like fracturing and coiled tubing.

Q: What pressure and displacement ranges are available?

A: SJ Petro’s skid-mounted plunger pumps cover maximum pressures from 35 MPa to 100 MPa (5,000 psi to 14,500 psi) and maximum displacements from 1,300 L/min to 4,200 L/min.

Q: What power options are available?

A: We offer diesel engine drive (Caterpillar engines with Allison transmissions), electric motor drive (variable frequency drive), and hydraulic drive.

Q: Can the skid be used offshore?

A: Yes. Our skid-mounted pumps are available with CCS, ABS, or DNV 2.7 marine certification. We have supplied skid-mounted equipment for offshore platforms in Bohai Bay and other international offshore operations.

Q: What is the operating temperature range?

A: Standard skid-mounted pumps operate from -20°C to +50°C. Custom configurations are available for extreme conditions.

Q: Are the pumps corrosion-resistant?

A: Yes. Manifolds and valves can be supplied in anti-corrosion materials resistant to 35% hydrochloric acid. Fluid ends are available in stainless steel with UltraLast™ technology.

Q: Are your products API certified?

A: Yes. SJ Petro holds API, ISO9001, and HSE management system certifications. Marine-grade skids are available with CCS, ABS, or DNV 2.7 certification.

Q: Do you offer OEM or customized solutions?

A: Absolutely. We offer comprehensive customization including skid design, pump selection, power system integration, control systems, material selection, certification, and climate engineering.

Q: What is the typical weight and dimensions of a skid-mounted pump?

A: A typical single-pump cementing skid measures approximately 7,000 × 2,400 × 3,100–3,500 mm and weighs approximately 14,000 kg. Dimensions and weight vary by configuration.

Q: Can you supply twin-pump skids?

A: Yes. We offer twin-engine, twin-pump configurations for higher displacement and operational redundancy.

Q: What is your manufacturing capacity and lead time?

A: We operate dedicated production lines for plunger pumps and three assembly lines for cementing and fracturing equipment. Lead times vary by configuration—contact our sales team for specific project timelines.

Q: Do you provide after-sales support and spare parts?

A: Yes. We offer comprehensive after-sales support including spare parts supply, equipment inspection, testing, and major overhaul services. Our pumps feature wear parts that are interchangeable with major international brands.

Q: Where have your skid-mounted pumps been deployed?

A: SJ Petro’s skid-mounted pumps and cementing equipment have been exported to Canada, Mexico, Kazakhstan, Turkmenistan, Syria, Cuba, and many other countries. Offshore units have been deployed on platforms in Bohai Bay and other international operations.

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