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Shijiazhuang City,Hebei Province.
celluloseBy virtue of its excellent properties such as thickening and filtration reduction, its derivatives play a key role in multiple core links of fossil energy extraction such as petroleum and shale gas, and are also the core raw materials for biomass energy development. The specific application links are as follows:
Fossil energy extraction process
Drilling process: Cellulose is often used as a drilling fluid additive in this process. On the one hand, the hydroxyl groups in its molecular chain can form a three-dimensional network structure through hydrogen bonding, which can significantly increase the viscosity of drilling fluid, enhance the ability to carry rock debris, prevent rock debris from settling and blocking the wellbore, and stabilize the wellbore wall that is prone to collapse, such as loose sandstone; On the other hand, cellulose molecules can adsorb at the interface between drilling fluid and formation rock, forming a dense filter cake, reducing the penetration of drilling fluid into the reservoir, avoiding the blockage of reservoir rock pores by solid particles in the drilling fluid, and ensuring smooth subsequent oil and gas flow channels.
Fracturing process: In hydraulic fracturing of low-permeability reservoirs such as shale gas and tight oil, cellulose derivatives are the core additives of the fracturing fluid. It can increase the viscosity of fracturing fluid, allowing quartz sand and other proppants to be evenly suspended and pushed to the depth of the crack, avoiding premature settling of proppants and causing crack closure; Chemically modifiedcelluloseIt can also adapt to the high temperature and high mineralization environment of deep reservoirs, and maintain the stable viscosity of fracturing fluid; And it can be designed as a controllable breaking system, which can quickly degrade after fracturing, facilitate the backflow of fracturing fluid, and avoid residual blockage of cracks.
Triple oil recovery process: After the first and second oil recovery, a large amount of crude oil remains underground, and cellulose derivatives can be used as polymer oil displacement agents in this process. It can increase the viscosity of the displacement fluid, improve the flowability ratio of water to crude oil, and avoid the "finger in phenomenon" of rapid water flow bypassing crude oil during water flooding; At the same time, the network structure formed by its molecules has viscoelasticity, which can block the high permeability channels of the formation and force the displacement fluid to flow towards low-permeability oil-bearing areas; Some derivatives can also reduce the adhesion between crude oil and rock surfaces, assist in crude oil stripping and carrying out, and significantly improve oil recovery.
Biomass energy development process
Raw material pretreatment process: Cellulose rich waste such as straw, sawdust, and kitchen waste are important raw materials for biomass energy. This process will pretreat the raw materials through techniques such as mechanical crushing, acid-base treatment, and microbial degradation to destroy the dense structure of cellulose and reduce lignin content. For example, steam explosion technology can be used to expand and rupture the cellulose structure, or cellulase secreted by fungi can be used to degrade the raw materials, laying the foundation for subsequent conversion.
Energy conversion process: pre treatedcelluloseIt can be converted into energy through various methods. In terms of thermochemical conversion, cellulose can be converted into combustible synthesis gas, bio oil, etc. through gasification, pyrolysis and other technologies. For example, fluidized bed gasification technology can convert cellulose in forestry waste into synthesis gas, which can then be used to prepare biofuels through Fischer Tropsch synthesis; In terms of biotransformation, cellulase is used to decompose cellulose into glucose, which is then fermented by microorganisms to convert glucose into biofuels such as ethanol. Cellulose in corn stalks can be converted into fuel ethanol through this method.
TEL：+86 (0311) 8444 9786
Email:sales@double-bulls.com
Email:Export@double-bulls.com
Address：No.9 Weisi Road, Jinzhou City Eco-nomic Development Zone, Shijiazhuang City, Hebei Province.
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