Reliable Cementing Equipment for Primary & Secondary Operations – Zonal Isolation & Well Integrity in Complex Boreholes

Innovation & Technical Strengths

We design cementing packages that solve real field problems – poor mixing, density variations, and unreliable pump performance. Here’s what makes SJ different:

• Auto-density recirculation mixing system – Real-time slurry density adjustment (±0.02 g/cm³ accuracy). No more “batch mixing guesswork.” Our system recycles until the weight is right, then pumps downhole.

• Twin independent high-pressure triplex pumps – Two pumps, two paths. If one needs maintenance, the other keeps the job going. Common configurations: 600HP + 600HP or 1000HP + 600HP.

• Remote wireless control cabin – Operator can monitor and adjust density, pump rate, and pressure from 200 meters away. Safer during high-pressure pumping or when using chemical additives.

• Proportional density blending – Cement, water, and additives are metered automatically based on real-time flow feedback. No manual throttles – just set the target density and let the PLC work.

• Offshore skid with explosion-proof certification – For platform or jack-up use. Units are compact, marine-coated, and ATEX / IECEx ready upon request.

• Foam cementing capability – Optional nitrogen injection system allows lightweight foam cement for weak formations or lost circulation zones.

• Cold-weather package – Winterized units with heated fluid ends, insulated lines, and low-temperature hydraulic oil, tested down to -40°C.

• Data recording & job reporting – Built-in sensors for pressure, rate, density, and volume. Automatically generates post-job PDF reports for quality assurance.

Technical Specifications – Representative Models

Applications – Where Our Cementing Equipment Works

• Primary casing cementing – Surface, intermediate, and production strings. Our units deliver consistent annular fill and good bond logs.

• Secondary / squeeze cementing – Remedial jobs to shut off water, repair casing leaks, or isolate perforations. Precise low-rate control is standard.

• Plug abandonment (P&A) – Reliable plug placement for well decommissioning, meeting regulatory requirements for zonal isolation.

• Lost circulation treatment – Lightweight or foam cement jobs to seal thief zones without fracturing weak formations.

• Offshore cementing – Fixed platforms, jack-ups, and tender-assisted rigs. Skid-mounted units save deck space and resist corrosion.

• High-temperature & high-pressure wells – Our units are field-proven in HPHT wells (up to 300°F BHCT, 15,000 psi surface pressure).

• Deepwater cementing (with riser assist) – We can integrate with remote-controlled skids for subsea cementing systems.

• Geothermal & water well cementing – Cost-effective truck units for shallower jobs, with low maintenance requirements.

Why Choose SJ Petroleum Machinery for Cementing Equipment?

• Sinopec subsidiary – Part of a Fortune 500 energy group. Financial strength, long-term reliability, and deep domain knowledge.

• Over 1,200 cementing units delivered – Since the 1970s, SJ has supplied cementing equipment to national oil companies and service providers worldwide.

• API 10A, 7K, and Q1 certified – Our units meet international tendering requirements. Third-party inspections are welcome.

• In-house automation team – The density control PLC and software are developed by our own engineers. That means faster customization and direct technical support.

• Realistic lead times – Typical cementing unit builds: 4–6 months for standard truck units, 6–8 months for offshore skids.

• Global parts support – We stock wear parts (valves, seats, packing, fluid end modules) and can ship within 48 hours for critical items.

• Customer training included – We provide 3-day classroom + field training at our factory or your location. Operation, maintenance, and troubleshooting.

• Cost-effective without cutting corners – Our pricing is typically 15–25% below European or American brands for equivalent specifications. Quality is proven in the field.

Frequently Asked Questions (FAQ)

Q1: What is the difference between primary and secondary cementing equipment?
A: The same unit handles both. Primary requires higher flow rates (up to 350 gpm) for large casing volumes. Secondary needs precise low-rate control (as low as 0.5 bpm) for squeeze jobs. Our PLC allows both modes.

Q2: Can your cementing unit be used for frac or acidizing?
A: Not recommended. Cementing units are designed for lower flow rates but higher solids content. For frac or acid, we recommend our dedicated fracturing pumps. But the same power end can be converted – contact us.

Q3: Do you offer automation to control slurry density automatically?
A: Yes. All our recirculation units have closed-loop density control. You set the target density, and the system adjusts water and cement feed automatically. Manual override is also available.

Q4: What about spare parts – how quickly can I get a fluid end module?
A: For common models (600HP and 1000HP), we keep fluid end modules, valves, seats, and packing in stock for air shipment. Lead time to most international airports: 5–7 working days.

Q5: Can I get a combined cementing unit with data recording and remote operation?
A: Absolutely. Our standard units include a basic data display. For remote operation and full job reporting, specify the “data & remote” package during ordering.

Q6: Are your units certified for use in explosive atmospheres (offshore / refinery)?
A: Yes. We can provide ATEX, IECEx, or local certification upon request. Standard offshore skids are built to IP56 and Zone 2 electrical requirements.

Q7: Do you sell used or refurbished cementing units?
A: Occasionally we have trade-in units that have been fully refurbished with new pumps and controls. Inquire for current inventory.

Q8: Can your cementing unit mix and pump lightweight cements (10–12 ppg) accurately?
A: Yes. Our recirculation system handles lightweight blends (including ceramic microspheres or foam) without bridging. The density control maintains ±0.02 g/cm³ even at low density.

Q9: What kind of warranty do you provide?
A: Standard 12 months from commissioning or 18 months from shipment. Extended warranties up to 36 months are available for major components.

Q10: How do I get a quotation for a cementing unit?
A: Send us your well depth, casing sizes, required pump rate and pressure, mounting preference (truck/trailer/skid), and any environmental conditions. We will reply with a technical datasheet and commercial offer within 3–5 working days.