Project at a Glance
In 2024, HuaQuan Power delivered 4 x 1500 kVA diesel generators for a remote oil field in southern Iraq. The generators power ESP (Electrical Submersible Pump) systems, camp facilities, and water injection pumps in a harsh desert environment. Operating at 48°C ambient with frequent sandstorms, the units required special sand filters, high-temperature cooling, and ATEX Zone 2 compliance for hazardous area classification. The project achieved 9,600 continuous operating hours in the first year with only scheduled maintenance downtime.
| Project Name | Rumaila Oil Field — ESP Power Station |
|---|---|
| Location | Basra Governorate, Southern Iraq |
| Industry | Oil & Gas / Upstream Production |
| Generator Model | HQ-P1500O (1500 kVA MTU 16V2000G65) |
| Quantity | 4 units (N+1 redundancy) |
| Total Capacity | 6,000 kVA (4,800 kW) |
| Operating Mode | Continuous prime power, 24/7 |
| Commissioning Year | 2024 |
| Standard | ATEX Zone 2, IEC 60079, API RP 14FZ |
⚠ The Challenge
A major oil field in southern Iraq required reliable prime power for ESPs (Electrical Submersible Pumps) that lift crude oil from 2,500m depth. Challenges: (1) ESP shutdown even for seconds causes production loss of 50,000 barrels/day and potential pump damage from sand settling; (2) Zone 2 hazardous area (flammable gases potentially present under abnormal conditions); (3) 48°C summer ambient with 50°C+ surface temperatures — standard radiators de-rate by 18%; (4) sandstorms (haboobs) deposit 2-3mm of fine sand per hour during events; (5) high-sulfur crude (3.5% H2S) requires corrosion-resistant materials; (6) remote location — 4 hours from Basra, no cellular coverage.
✔ The Solution
HuaQuan Power engineered an ATEX Zone 2 compliant power station: 4 x 1500 kVA MTU 16V2000 engines in N+1 configuration (any 3 units provide 100% load, 1 hot standby). Key features: ATEX-certified intake shutoff valves and spark arrestors; pressurized instrumentation enclosures (Ex p); DSG110 high-temperature radiators with oversized fans (55°C ambient rating); multi-stage sand filtration: inertial separator + Vokes MicroPac + secondary panel filter (99.97% at 2 micron); H2S-resistant stainless steel (316L) exhaust system and fuel lines; 20,000L bunded fuel tanks with 5-micron polishing; ComAp InteliGen 200 controllers with fiber-optic CAN bus (immune to EMI from VSD-driven ESPs); and satellite-based remote monitoring (Inmarsat FleetBroadband) with 5-second data intervals for ESP protection. Factory tested at full load for 100 hours continuous, witnessed by Shell Iraq Petroleum Development (SIPD) representatives.
Equipment Delivered
| Equipment | Specification | Qty | Notes |
|---|---|---|---|
| HQ-P1500O Generator | 1500 kVA / 1200 kW, 11kV, 50Hz, MTU 16V2000 | 4 | ATEX Zone 2 compliant |
| DSG110 Radiator | 55°C ambient, oversized fans | 4 | Vertical discharge, remote |
| Sand Filtration | Inertial + MicroPac + panel filter | 4+8+8 | 99.97% at 2 micron |
| ATEX Package | Intake shutoff, spark arrestor, Ex p | 4 | IECEx / ATEX certified |
| Fuel Tank | 20,000L bunded, 5-micron polishing | 4 | 7 days at 75% load |
| Exhaust System | 316L SS, H2S resistant | 4 | Critical grade silencer, -35 dBA |
| ComAp InteliGen 200 | Fiber-optic CAN bus, redundant | 4+4 | EMI immune |
| Satellite Monitor | Inmarsat FB, 5-sec intervals | 4 | 24/7 monitoring from Weifang |
Project Results
- Production continuity: Zero ESP shutdowns due to power failure in first 12 months. 9,600 hours of continuous operation per unit.
- Load acceptance: Generators accept 60% load step (ESP cold start) within 2 seconds, maintaining frequency within ±2%. ESP manufacturer (Schlumberger REDA) certified compatibility.
- Sandstorm performance: During a 3-day haboob event (April 2024), filter differential pressure increased from 2.5 kPa to 3.8 kPa — well within 6 kPa alarm threshold. Zero derating or shutdowns.
- Fuel quality: 5-micron polishing maintained fuel at ISO 4406 18/16/13 cleanliness despite dusty fuel delivery conditions. Zero injector failures.
- Remote support: HuaQuan\'s 24/7 monitoring center detected a coolant temperature trend 3 weeks before the thermostat would have failed — proactive replacement during scheduled maintenance, avoiding a potential shutdown.
- Repeat order: Operator ordered 6 additional 1500 kVA units for neighboring oil field in 2025.
Key Takeaways
- Oil field ESP power must be absolutely continuous — a 5-second outage destroys $150K of ESP equipment and causes 3-5 days of production loss.
- ATEX Zone 2 compliance for oil fields requires certified components (intake shutoff, spark arrestors, pressurized enclosures) and rigorous documentation.
- High-sulfur crude (sour service) mandates H2S-resistant materials: 316L stainless steel for exhaust and fuel systems, even at Zone 2 distances.
- Fiber-optic CAN bus is essential when VSD-driven ESPs generate electromagnetic interference that disrupts copper CAN bus communications.
- Predictive maintenance via remote monitoring (coolant temperature trend analysis) can prevent catastrophic failures — the 3-week early warning saved millions.
- Iraq\'s oil field generator market: $500M+ annual demand as production targets increase from 4.5M to 8M barrels/day by 2028.
Project Summary
The Rumaila oil field project represents HuaQuan Power\'s capability in hazardous area generator solutions. Four ATEX Zone 2 compliant 1500 kVA generators provided uninterrupted prime power for critical ESP systems in Iraq\'s largest oil field, operating 9,600 continuous hours with zero ESP shutdowns. The key technical achievement was combining ATEX compliance with extreme environment engineering: 48°C ambient, H2S-resistant materials, and sandstorm filtration — all while maintaining the reliability required for $50M/day production operations.
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