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2 & 3-Phase Separators

Efficient Separation for Optimal Processing

SPEC designs and fabricates two-phase and three-phase separators to efficiently separate gas, oil, and water streams in natural gas production. Our separators utilize proven principles of momentum, gravity settling, and coalescence to deliver reliable performance across upstream and midstream operations.

Each separator is carefully engineered to match fluid characteristics and operating conditions, ensuring steady operation and high separation efficiency in both horizontal and vertical configurations.

Design Considerations

Separator design depends on the specific composition and behavior of the process fluid. Key influencing factors include:

  • Gas-to-liquid ratio
  • Density difference between gas and liquids
  • Viscosity variations
  • Operating temperature and pressure
  • Particle size distribution
  • Presence of H₂S or CO₂
  • Slug volumes and flow stability

Process Description

The process begins when the fluid enters the separator and impacts the inlet device, which reduces momentum and initiates separation. The gas and liquid phases are divided using inlet diverter plates, a half-pipe, or cyclonic devices to remove bulk liquids.

In two-phase separators, gas exits through mist extractors while liquids settle in the accumulation section for discharge. In three-phase separators, an additional stage separates oil and water layers, allowing precise interface control.

Each separator package includes all necessary instrumentation for pressure, temperature, and level control, along with standard safety features. SPEC also provides customized add-ons such as:

  • Sand jetting systems and heating coils
  • Heat tracing and NACE-compliant equipment
  • Wave breakers and offshore installation design compliance

All separator packages are modularized for easy transport, installation, and maintenance, making them ideal for onshore and offshore applications.

Why Partner with SPEC Technology

SPEC brings more than two decades of expertise in oil and gas technology, delivering turnkey separator solutions that meet international standards. Our engineering procurement and construction (EPC) capabilities ensure full project control, from design to commissioning. With a focus on safety, efficiency, and long-term reliability, SPEC remains a trusted partner for global energy operators.