Core Energy Systems Limited is an engineering-led EPC solutions provider serving the Oil & Gas industry, with expertise in end-to-end project execution across midstream and downstream facilities.
We specialize in engineering, procurement, fabrication, construction, and commissioning of process and utility systems, including modular skid-based packages, electrical and instrumentation works, and integrated site construction. Our capabilities extend to technically complex, high-specification environments such as hazardous area installations, with strict adherence to industry codes, standards, and statutory requirements.
Focused on constructability, safety, quality, and schedule certainty, we deliver custom-engineered solutions designed for operational reliability, lifecycle efficiency, and seamless integration with both brownfield and greenfield assets.
In addition to turnkey EPC delivery, Core Energy Systems supports clients across the complete project lifecycle, from FEED validation and detailed engineering through indigenized manufacturing, modularization, and commissioning support. Our proven project experience spans refineries, terminals, offshore platforms, Chemical Units, and petrochemical complexes, enabling cost-effective execution, controlled risk management, and predictable project outcome.
Engineering, Procurement & Construction (EPC)
Desalination & Water Purification Systems
- Thermal and membrane-based desalination units (RO, MED, MSF)
- Water treatment plants for process and potable applications
- Packaged skid systems for offshore and onshore installations
- Integration with utility and effluent handling systems
Combined Utility Services
- Compressed air systems for instrumentation and plant operations
- Firefighting systems including hydrants, sprinklers, and foam-based suppression
- Industrial and specialty gas distribution networks (Nitrogen, Hydrogen, etc.)
- Potable, service, and process water distribution systems
Balance of Plant
- Utility systems including water treatment and gas distribution networks
- Firefighting systems and safety infrastructure compliant with NFPA/API standards
- Electrical systems – substations, cabling, lighting, and earthing networks
- HVAC, instrument air, and chemical dosing units for process support
Outside Battery Limits
- Utility supply systems – water, steam, compressed air, nitrogen
- Storage tanks, pump houses, and utility stations
- Interconnecting piping, pipe racks, and cable trays
- Access roads, drainage, firefighting networks, and boundary fencing
Engineered Packaged Systems (EPS)
Liquid Ring Vacuum Pump (LRVP)
- Custom-engineered LRVP skid packages designed for continuous and stable vacuum generation in process applications
- Integration of pump, separator, heat exchanger, instrumentation, and control systems on a single skid
- Suitable for handling wet gases, vapors, and corrosive process fluids in the Oil & Gas sector
- Designed with project-specific process parameters
- Optimized for ease of installation, reduced footprint, and minimal maintenance
- In-house engineering, 3D modelling, fabrication, and functional testing capabilities ensure system integrity and performance
Heat Exchanger
- Design and supply of custom-built Shell & Tube, Plate, and Air-Cooled Heat Exchangers based on process requirements
- Thermal and mechanical design using advanced simulation tools with client-specific specifications
- Skid-mounted systems integrated with piping, valves, instrumentation, and structural supports for plug-and-play installation
- Suitable for high-pressure, high-temperature, and corrosive service conditions across Oil & Gas, Petrochemical, and Power sectors
- In-house capability for 3D modelling, fabrication, hydrotesting, and performance validation
- Engineered for maximum heat transfer efficiency, operational safety, and long-term service reliability
Separator Systems
- Design and fabrication of 2-phase and 3-phase separators for efficient gas-liquid or oil-water-gas separation
- Engineered as vertical or horizontal vessels based on flow parameters, phase ratios, and space constraints
- Skid-integrated systems with internals such as inlet diverters, demister pads, weir plates, and level control mechanisms
- Designed as per client-specific data sheets
- Applications across upstream Oil & Gas production, FPSO topsides, gas dehydration units, and refinery utilities
- Integrated with pressure safety valves, instrumentation, and process automation for safe and optimized operation
HVAC Systems
- Design and integration of custom HVAC packages for critical environments such as control rooms, substations, shelters, and process areas
- Systems engineered for hazardous (Zone 1 & 2) and non-hazardous classifications with compliance to ATEX, IECEx, and NFPA standards
- Skid-mounted and modular HVAC units with explosion-proof, corrosion-resistant, and offshore-rated components
- Integrated with filtration, pressurization, fire/smoke dampers, and automated control systems for environmental regulation
- Compliance with ISHRAE and client-specific standards, with a focus on thermal efficiency and system reliability
- Suitable for applications across Oil & Gas sectors
Flare gas recovery units
- Recovery of low-pressure flare gases for reuse as fuel or feedstock
- Reduction in greenhouse gas emissions and flaring losses
- Skid-mounted, modular design for easy integration into existing systems
- Compliance with environmental regulations and industry standards
- Customizable configurations based on plant capacity and process needs
Metering and Dosing Skids
- High-precision flow meters, pumps, and control valves for exact dosing accuracy
- Modular, skid-mounted design for seamless integration into existing infrastructure
- Compatible with corrosive, hazardous, and high-viscosity fluids
- Incorporates safety interlocks, pressure relief systems, and instrumentation for real-time monitoring and control
- Engineered for ease of operation, maintenance, and long-term system reliability
Pneumatic Winches
- Air-operated design suitable for use in explosive and offshore environments
- Available in various load capacities with precise control mechanisms
- Compact, robust construction for high performance in harsh conditions
- Integrated safety features including fail-safe brakes and overload protection
- Low maintenance and continuous duty operation for critical field applications
Centralized Compressed Air System
- Centralized generation and distribution of compressed air for plant-wide applications
- Integrated with dryers, filters, receivers, and control panels for consistent air quality
- Engineered for continuous duty with minimal pressure drop across distribution lines
- Skid-mounted or containerized configurations for modular deployment
- Designed for safe operation in hazardous and offshore environments
Centralized Vacuum System
- Centralized vacuum generation and distribution for multiple process points
- Equipped with liquid ring, dry screw, or rotary vane vacuum pumps based on application needs
- Integrated with separators, filters, silencers, and control panels for optimal performance
- Skid-mounted or containerized solutions for easy installation and maintenance
- Suitable for hazardous area operation and compliant with oil & gas safety standards
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Water makers (Distillation type)
- Thermal distillation process using multi-stage flash (MSF) or multi-effect distillation (MED) technology
- Capable of producing high-purity water with low total dissolved solids (TDS)
- Corrosion-resistant materials ensure long service life in saline and offshore conditions
- Skid-mounted and modular for compact footprint and ease of integration
- Designed for continuous operation with low maintenance requirements
Desalination Plants
- Reverse Osmosis (RO) and Thermal Desalination (MSF/MED) technologies based on application requirements
- High recovery rates with advanced pre-treatment and post-treatment systems
- Modular, skid-mounted or containerized configurations for rapid deployment
- Corrosion-resistant materials and components for long-term durability in harsh environments
- Integrated with automation and monitoring systems for reliable, low-maintenance operation
Operation and Maintenance
Operation & Maintenance
- Loading and unloading of liquid hydrocarbons through road loading bays, rail tank wagons, and offshore or port conduit systems for ocean tankers via SBM.
- Comprehensive Operation & Maintenance of CNG Stations
- Operation and maintenance activities at the LPG bottling plant
Manpower outsourcing
- Supply of graduate engineers for the LPG Plant pan India
- Certified manpower supply for drilling (offshore), RCM, cementing, and well services
- Graduate Engineers, Diploma Engineer and ITI holders for city gas distribution
- Providing Retired Revenue Manpower
Plant operation
- Operation of Raw Water Systems, Cooling Towers, and Treatment Facilities, including Wastewater, Spent Caustic, Sewage, and Effluent.
- Integrated Facility Management Services at Oil & Gas Depots
Plant Maintenance
- Rotary equipment - Compressors, Pumps, Gearboxes, Engines, Fans, Blowers, etc.
- Static equipment - Heat Exchangers, Furnaces, Pipes, Flanges, etc.
- Semi-Rotary equipment - Valves, NRV, etc.
- Instrumentation equipment - Weigh Bridge, Flow and Mass meters, and Level gauges, etc.
- Scaffolding Erection
- Mechanical Maintenance Jobs at Refinery
Mechanical Maintenance activities:
Technology Absorption
At Core Energy Systems Limited, we drive innovation by integrating advanced global technologies into our engineering and execution capabilities across the oil & gas sector. Our approach emphasizes customization, compliance, and seamless integration—ensuring each absorbed technology adds measurable value to client operations in Midstream and downstream segments.
Key focus areas:
- Global Collaboration & Localization - Strategic partnerships with international technology providers, adapted and localized to meet specific operating, safety, and regulatory requirements in Indian and offshore environments
- Modular Engineering & Skid-Based Integration - Design and delivery of skid-mounted systems like flare gas recovery units, metering and dosing skids, centralized vacuum and air systems, enabling plug-and-play deployment with minimal field modification
- Process-Critical Systems Adaptation - Adoption and customization of critical systems such as LRVP packages, separator units, heat exchangers, desalination plants, and distillation-based water makers engineered to operate in hazardous and corrosive conditions
- In-House Innovation & Indigenization - Continuous R&D and engineering refinement to optimize imported technologies, enabling cost-effective indigenized fabrication while aligning with client-specific specifications and statutory codes
- Field Validation & Lifecycle Support - Hands-on commissioning, O&M services, and long-term performance monitoring across refineries, petrochemical complexes, terminals, and offshore platforms—ensuring technology performance under real-world conditions
- Digitalization & Control Integration - Smart instrumentation, PLC/SCADA integration, and centralized control features embedded into EPS and utility packages for real-time performance tracking, safety interlocks, and remote operability.