Oil and gas exploitation

Oilfield associated gas recycling

The oil and gas extraction industry faces many challenges today:

• 01

  The dual carbon goals are advancing continuously, Environmental protection and emission standards continue to tighten
• 02

  The industry accelerates the promotion of energy conservation, carbon reduction, production increase and efficiency improvement transformation
• 03

  The associated gas composition is complex and cannot be directly used as industrial fuel, resulting in waste of resources
• 04

  low-cost and sustainable and stable electricity and heat energy supply demand

Solutions for clean utilization of low calorific value air resources at oilfield transfer stations and joint stations

In the heavy oil transportation link of the oilfield transfer station and joint station, the gas turbine recovers low-calorific value air for power generation to meet the electricity consumption of oilfield production.
At the same time, the high-temperature flue gas generated by the gas turbine is converted into hot water to heat the heavy oil to reduce its viscosity, helping oilfield enterprises save energy and increase efficiency, reduce emissions and reduce carbon emissions.

Technical Processes

Unit Configuration

Type	Accompanying energy	Supporting units
Transfer Station/Transfer Station/Union Station	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

• Fuel adaptability

  Associated gas and low calorific value gas can be used
• Adjustable heat/electricity ratio

  Adapt to the changes in heat demand in different seasons of the oilfield
• Environmentally friendly

  Discharge cleaning does not require denitrification equipment, low noise
• Smart and convenient

  Remote monitoring, one-click start-stop fault warning

Application Cases

A joint station in Tuha Oilfield, Xinjiang, has a low calorific value air discharge recycling project

E390 micro-combustion engine cogeneration project of a joint station in Tuha Oilfield: using the low calorific value generated by gas flooding and oil recovery in the oilfield to release air to generate electricity, avoiding environmental pollution and waste of resources caused by direct ignition of torches. The waste heat of the gas turbine generates hot water to heat crude oil, replacing the original electric boiler and reducing energy costs.

Economic value：

reduction of direct energy expenditure and increase in revenue; conversion of air into energy assets;

Environmental value：

carbon emission reduction is explicit, and the collaborative treatment of pollutants eliminates NOx emissions from torch combustion; it has become a typical case of oilfield emission reduction;

Operational value：

energy cascade utilization; strengthen energy security and reduce unplanned shutdowns caused by grid fluctuations.

Project location: Tuha Oilfield in Xinjiang

Delivery time: November 2023

Unit model: E390