In offshore oil and gas operations, space is limited, safety requirements are stringent, and environmental conditions can be extreme. For this reason, the design and certification of three-phase separators used offshore must meet a much higher standard than typical onshore units. At HC, we understand these challenges and provide tailored separation solutions engineered for offshore performance, safety, and reliability.

Unlike onshore installations, offshore platforms must operate in environments with high humidity, salt-laden air, heavy wind, and rough seas. The separators installed here must endure these harsh conditions while maintaining stable separation of oil, gas, and produced water under varying flow conditions.

Key design considerations for offshore three-phase separators include:

Compact footprint: Platform space is valuable. HC designs separators with a reduced footprint and optimized layout without compromising separation efficiency.

Weight control: Lifting and structural load constraints require lightweight construction. We use high-strength materials and efficient internals to minimize weight.

Corrosion resistance: Offshore environments accelerate corrosion. We select corrosion-resistant alloys (CRA) or apply advanced internal coatings to extend equipment life.

Skid-mounted modular design: To ease transportation and installation, separators are often skid-mounted, pre-assembled, and tested before shipment.

Compliance and Certification

Offshore equipment must comply with strict international standards and regional regulatory requirements. HC ensures that every offshore separator is designed and manufactured in accordance with:

ASME Section VIII Div.1 or Div.2 – for pressure vessel integrity

API 12J – for oil and gas separation equipment

DNV, ABS, or BV Certification – depending on project location and client preference

ATEX or IECEx Certification – for electrical and instrument components used in hazardous areas

We also provide material traceability, welding procedure documentation, and full factory acceptance testing (FAT) to ensure compliance with project-specific quality and safety protocols.

Designed for Harsh Realities

Every offshore project comes with unique technical challenges. Whether it’s high gas-oil ratio, waxy crude, sour service, or fluctuating flow regimes, HC works closely with clients to customize the internals and instrumentation of the separator. From wave-induced level fluctuation control to enhanced gas demisting and sand handling systems, we engineer solutions to ensure stable performance.

HC is a professional manufacturer of oilfield surface testing and production equipment. Our offshore portfolio includes three-phase separators, surge tanks, sand filters, and heater treaters, all engineered to meet the demands of offshore production.

For more information on our offshore separator solutions or to request a technical proposal, please contact our engineering team.