Oil and gas exploitation

Power supply from offshore platforms

Industry pain points and needs:

• 01

  The associated gas directly ignites the torch, resulting in the loss of resource value, and at the same time, the environmental protection is not up to standard
• 02

  Corrosion resistance is required, and the equipment needs to have high-level anti-corrosion capabilities, resisting salt spray and high humidity erosion
• 03

  There is a strong demand for localized equipment substitution
• 04

  Continuous and stable power supply in a wide temperature range of -35°C to 50°C

Offshore platform power supply solution

Make full use of the excess associated gas on the offshore platform to generate electricity through gas turbines to achieve the purpose of extinguishing the torch and meet the domestic hot water needs of the small platform.
It can be customized and developed according to the anti-corrosion and explosion-proof requirements and temperature conditions of the offshore platform.

Technical Processes

Unit Configuration

Type	Accompanying energy	Supporting units
Small offshore platform/mobile platform	1500～3500Nm3/day	E135 series gas turbine
	3000～10000Nm3/day	E390 series gas turbine
	15000～70000Nm3/day	E2100 series gas turbine

Solution Advantages and Features

• 100% localization of core equipment to break through the "stuck neck" dilemma
• Realize the platform fire extinguishing torch, eliminate safety risks, and alleviate environmental protection pressure
• Alleviate the power pressure of the platform, optimize energy self-sufficiency, and improve the stability of the isolated grid power supply mode with multi-device power supply
• Efficient recycling of associated gas resources to achieve economic benefits

Application Cases

CNOOC low-voltage associated gas recovery and power generation project on an offshore platform

According to the operating conditions of the offshore platform, the E390 customized unit is adopted, which has the characteristics of compact structure, high efficiency, low emission, and high salt corrosion resistance, with high reliability and stability, and is suitable for stable operation in harsh marine environments.

Economic value：

The low-pressure associated gas is converted into energy assets, and the original emptying associated gas is effectively utilized.

Environmental value：

Clean operation, energy conservation and carbon reduction, NOx emissions ≤ 25ppmv, and realize the platform fire extinguishing torch.

Operational value：

The equipment has adjustable heat recovery, adapts to the complex environment of offshore islands for long-term continuous power generation, solves the power gap, improves system reliability, and realizes energy cascade utilization.

Social value：

Independent equipment, positive research and development, 100% localization of core components, and realization of localization of energy equipment.

Project location: CNOOC offshore platform

Delivery time: December 2023

Unit model: E390R