"Internet of Things+VOCs"Power Generation and Comprehensive Waste Heat Utilization
The Niu-871 block in the Niu Zhuang Oilfield belongs to a high-pressure,low-permeability reservoir with a high gas-to-oil ratio.During the production process of oil wells,significant amounts of associated volatile organic compounds(VOCs)are separated from the crude oil and accumulate in the annular space.If not discharged in a timely manner,this accumulation can lead to an increase in annular pressure,a decrease in liquid level,and the formation of gas locks,resulting in reduced production.On one hand,the utilization of associated gas for burning in heating water jacket furnaces and multi-functional oil storage tanks,with the surplus gas burned off or released,leads to energy waste and environmental pollution.Additionally,a significant amount of electricity is consumed by pumping units and electromagnetic heating devices.To address these issues and align with the"Four Modernizations"development strategy in oilfields,a"internet of things+VOCs"power generation and waste heat utilization system has been developed.This system has been successfully tested in the Niu871 inclined 50-cluster well group,recovering and utilizing 20.7X104 m3/a of associated gas,generating 95.2× 104 kW·h/a of electricity,and utilizing 2 580 GJ/a of waste heat.This fully meets the power and heating needs of the Niu-871 inclined 50-cluster well group.Additionally,it results in an annual reduction of 104.937 kg of sulfides,achieving both environmental and economic benefits through the governance and comprehensive utilization of VOCs.
internet of thingsassociated gaswaste heatpower generation
万方数据
