Preparation of a biomass-based micro-nano combustion agent and its feasibility of chemical ignition in fireflooding

doi:10.3969/j.issn.1006-6535.2026.04.010

Abstract

Abstract: In chemical ignition for heavy oil fireflooding,chemical combustion agents are required.To address the high storage-transport risk and high cost of existing chemical agents,a biomass pulp was used as raw material to prepare a biomass-based micro-nano chemical combustion agent(DES-US-BIO)via a deep eutectic solvent-ultrasonic method.The structure of DES-US-BIO was characterized in terms of average particle size and crystallinity.Combustion cell experiments were carried out,including measurement of activation energy and analysis of combustion characteristics,and the combustion-promoting performance of DES-US-BIO was evaluated.The results show that the prepared material has an average particle size of about 628 nm and an ignition temperature of 240.0-260.0 ℃.The activation energy in the combustion stage ranges between 69×10³ and 160×10³ J/mol.DES-US-BIO can accelerate crude oil ignition and promote temperature increase at the combustion front,thereby improving the oil recovery efficiency.The micro-nano size and low ignition temperature of DES-US-BIO meet injection requirements and can provide initial ignition energy as well as increase fuel concentration,endowing it with great application potential for chemical ignition in fireflooding development.

Key words: fireflooding, chemical ignition, micro-nano scale, combustion agent, activation energy

CLC Number:

TE357

Yang Ying, Zhao Renbao, Ren Haitao, Zhou Guanghui, Liao Bin, Liu Bin, Liu Yushen. Preparation of a biomass-based micro-nano combustion agent and its feasibility of chemical ignition in fireflooding[J]. Special Oil & Gas Reservoirs, 2026, 33(4): 74-80.

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