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Separator Skids
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Modular Separator Systems for Efficient Process Operations
NND Oil & Gas designs and manufactures separator skids, engineered process units designed to integrate separation equipment, piping, valves, instrumentation, and structural supports into a single modular package. Factory assembly on a single skid simplifies transportation, reduces site installation work, and supports faster commissioning.
In the oil and gas industry, a Separator System is commonly used to separate gas, oil, and water under controlled conditions before downstream processing. NND Oil & Gas designs and manufactures modular skid solutions according to project-specific operating conditions, process requirements, and installation needs.
What are separator skids?
A separator skid is a complete process package that combines separation equipment with supporting components on a common structural base. Instead of installing individual equipment pieces separately, the entire system is assembled, tested, and prepared before delivery.
Depending on the application, the skid can accommodate two-phase or three-phase separation systems along with the required process controls and utility connections.
Main Components
- Separator vessel
- Structural skid frame
- Process piping
- Manual and automated valves
- Pressure instruments
- Level monitoring system
- Safety devices
- Drain and vent connections
Each skid is configured according to the process requirements and operating conditions.
How a Separator System Works
A separator system separates gas and liquid phases, or gas, oil and water, within a controlled process vessel and integrates the required piping, valves and instrumentation on the skid.
Working Process
- The process stream enters the separator vessel.
- Flow conditions allow different phases to separate inside the vessel.
- Gas moves toward the gas outlet.
- Liquid phases collect within the designated sections.
- Level controls help regulate fluid discharge.
- Separated fluids leave through their respective outlet connections.
The integrated skid arrangement allows all supporting equipment to operate as a unified process package.
Modular Skid Design
A Modular Skid is engineered around project-specific process conditions and installation requirements. The design focuses on simplifying transportation, reducing site work, and supporting reliable operation after installation.
Key Design Considerations
| Parameter | Design Consideration |
| Process Capacity | Required operating conditions |
| Separation Requirement | Two-phase or three-phase |
| Operating Pressure | Project requirement |
| Process Temperature | Operating conditions |
| Structural Frame | Equipment support |
| Piping Layout | Process integration |
| Instrumentation | Monitoring and control |
| Site Installation | Transportation and accessibility |
Proper skid design helps improve installation efficiency while supporting long-term operation.
Types of Separator Skids
Different projects require different separator configurations.
Two-Phase Separator Skids: Designed for applications that require gas-liquid separation before downstream processing. Commonly used at wellheads, test separators, and gas gathering stations where only gas and liquid separation is required.
Three-Phase Separator Skids: Suitable where gas, oil, and water require controlled separation within a single process package. Widely used at production facilities, offshore platforms, and processing plants where produced water must be separated from hydrocarbon liquids before further treatment.
Custom Modular Skids: Engineered for project-specific process conditions, piping arrangements, and instrumentation requirements.
Technical Specifications
The specifications of a Separator Skid are developed according to project-specific operating requirements.
| Parameter | Specification |
| Equipment Type | Modular Separator Skid |
| Separation Type | Two-Phase / Three-Phase |
| Process Service | Gas-Liquid / Gas-Oil-Water Separation |
| Operating Pressure | As per application (customisable) |
| Design Code | ASME Section VIII / Applicable regional requirements / Customer specification |
| Piping Code | ASME B31.3 / Project-specific applicable piping code |
| Material of Construction | Carbon Steel / SS304 / SS316 / As per process requirement |
| Structural Frame | Fabricated Carbon Steel Skid Base |
| Instrumentation | Level, Pressure, Temperature, Flow (as required) |
| Piping Integration | Custom designed to project P&ID |
| Factory Testing | Hydrostatic Pressure Test + Functional Test |
| Customisation | Available |
Final specifications are developed according to project process datasheet, operating conditions, and applicable design codes.
Key Features
- Pre-engineered modular package
- Integrated piping and instrumentation
- Heavy-duty skid construction
- Custom process layouts
- Factory-tested assemblies
- Simplified transportation
- Reduced installation effort
- Suitable for oil & gas applications
Advantages of a Modular Skid
- Faster Installation: Factory assembly helps reduce on-site installation time.
- Simplified Transportation: The complete package can be transported as a single engineered unit.
- Integrated Process Package: Integrated piping and instrumentation improve system organization.
- Reliable Project Execution: Factory testing helps verify system readiness before dispatch.
- Flexible Engineering: Each skid can be configured according to operating pressure, process requirements, and installation conditions.
Industrial Applications
NND Oil & Gas supplies separator skids for various industrial applications requiring integrated process packages.
- Oil & Gas Production: Gas, oil, and water separation at production facilities.
- Gas Processing Plants: Modular separation systems for process operations.
- Pipeline Facilities: Process packages supporting gas handling operations.
- Petrochemical Plants: Integrated separation equipment for process systems.
- Industrial Process Plants: Custom modular skid solutions for specialized applications.
Why Choose NND Oil & Gas?
NND Oil & Gas combines engineering expertise with quality manufacturing to deliver modular process equipment for demanding industrial environments.
What Sets Us Apart
- ISO 9001:2015 certified manufacturing processes.
- Factory-tested skid assemblies before dispatch.
- Complete documentation package, including drawings and inspection reports.
- Custom-engineered solutions for project-specific applications.
- Trusted by oil & gas, chemical, fertilizer, pharmaceutical, and process industries.
Every separator skid is developed around customer operating requirements to support reliable project execution.
Frequently asked questions
A separator skid is a modular process package that combines separation equipment, piping, valves, instrumentation, and structural supports into a single engineered unit.
Modular Skids help simplify transportation, reduce installation time, improve process organization, and support efficient project execution.
Yes. All NND separator skids undergo hydrostatic pressure testing and functional verification before dispatch. Test records and inspection reports are included in the documentation package supplied with each unit.
A separator system is designed to separate gas, oil, and liquid phases before downstream processing or transportation.
Yes. NND designs separator skids according to process capacity, operating pressure, piping layout, instrumentation, and project-specific requirements.
Selecting the right separator skid requires careful evaluation of process conditions, separation requirements, operating pressure, and installation needs.
Contact NND Oil & Gas to discuss your application and receive a customized technical proposal for your project.
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