Reliability in the oil and gas sector is non-negotiable, as even brief power quality disturbances can result in feedstock waste, equipment damage, and millions in lost production. From remote upstream extraction to midstream transport and downstream refining, these facilities operate in high-stakes environments where power quality and electrical stability are challenged by large motors starts, non-linear loads, and weak grid connections.
Addressing Segment-Specific Electrical Challenges
Upstream: Offshore & Remote Extraction
Exploration and production platforms often operate on isolated or weak grids where the high inrush currents of drilling drives and large submersible pumps can cause voltage regulation and stability issues due to reactive power flow. VarStec provides compact, ruggedized reactive power solutions to maintain system voltage and maximize system uptime in space-constrained and remote environments.
Midstream: Pumping & Compression Stations
Long-distance pipeline systems rely on high-horsepower induction and synchronous motors at remote pump and compressor stations, where across-the-line starting can produce voltage sags that disrupt the local grid and limit motor starting performance. VarStec provides localized reactive power solutions, including medium-voltage metal-enclosed capacitor banks and harmonic filter banks, for power factor correction, voltage support, and improved system stability. For large motor starting applications, MotorVAR™ delivers the reactive power required for successful across-the-line starting without the complexity, large footprint, and added cost of VFD starters, E-Houses, and synchronous bypass switchgear.
Downstream: Refining & Petrochemical Processing
Refining and ethylene production involve the use of large rectifiers and VFD-driven compressors that generate significant harmonic distortion, resulting in-plant power quality concerns and IEEE 519 and IEC compliance concerns. VarStec’s custom-engineered metal-enclosed refinery harmonic filters provide power factor correction, reduces in-plant voltage and current distortion, and precludes resonance.
How VarStec Helps
Harmonic Mitigation for Large VFD Loads
Large VFDs serving compressors, pumps, and other critical process equipment can introduce significant harmonic distortion into oil, gas, and petrochemical power systems. VarStec’s Metal-Enclosed Harmonic Filter Banks provide reactive power while filtering 5th, 7th, 11th, 13th, and higher-order harmonics to maintain power quality, control THD, improve power factor, and protect upstream equipment.
Transient-Free Motor Starting (MotorVAR™)
For large 2.4 kV to 13.8 kV motors used in pumping and compression, MotorVAR™ supplies the necessary reactive power locally during acceleration. This reduces system voltage sag and provides a practical, plant-wide alternative to costly VFD drive starters that require E-Houses and synchronous bypass switchgear.
Engineering for Corrosive & Hazardous Environments
- Corrosion Resistance: Stainless steel enclosures and specialized protective coatings for H2S, NH3, or Cl2
- Offshore Durability: Engineered to withstand salt spray, high humidity, and extreme solar loading.
- Thermal Management: Sealed cooling approaches to maintain reliability in dusty or hazardous areas
System-Fit Engineering & Analysis
We do not offer one-size-fits-all catalog equipment. Using field measurement data or detailed system modeling, VarStec performs motor-starting, load-flow, power factor, and harmonic analysis, as well as filter design studies. These studies ensure the final solutions are technically correct, meet system objectives, and are reliable, cost-effective, and compliant with all industry and utility interconnection requirements.