Preparation method of heat-resistant and salt-resistant biomass paraffin remover
A technology of wax remover and biomass, which is applied in the field of preparation of heat-resistant and salt-resistant biomass wax remover, can solve the problems of poor stability of compound system, easy change of chemical structure, stratification or precipitation, etc. Improved stability and transparency, excellent temperature resistance, and the effect of preventing delamination
Inactive Publication Date: 2018-11-16
FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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Problems solved by technology
[0006] The main technical problem to be solved by the present invention is that the wax remover made of pure biomass surfactants has poor salt tolerance, and is prone to stratification or precipitation under the conditions of high salinity, especially in oil reservoirs with high content of high-valent me
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The invention relates to a preparation method of a heat-resistant and salt-resistant biomass paraffin remover, and belongs to the technical field of preparation of paraffin removers. The preparation method comprises the following steps: carrying out steam explosion on bagasse used as a raw material to obtain exploded fibers, mixing and reacting the exploded fibers with acetate to obtain acetylatedcellulose acetate, carrying out free radical grafting copolymerization on the acetylated cellulose acetate with cerium nitrate as an initiator to introduce sulfonic acid groups in order to prepare aparaffin remover functive, and blending the paraffin remover functive with other auxiliary materials to finally prepare the heat-resistant and salt-resistant biomass paraffin remover. The heat-resistant and salt-resistant biomass paraffin remover prepared in the invention has the advantages of excellent resistance to heat and salt, and broad application prospect.
Description
technical field [0001] The invention relates to a preparation method of a heat-resistant and salt-resistant biomass wax remover, belonging to the technical field of wax remover preparation. Background technique [0002] The wax content of most crude oil in my country is higher than 20%, some even as high as 40%. Therefore, in the process of crude oil extraction, as the temperature and pressure drop, the wax-dissolving ability of crude oil gradually decreases, and the wax in the oil begins to crystallize. Precipitation, accumulation, and deposition around the well wall and in the production pipeline increase the flow resistance of crude oil, directly affect production and energy consumption, and even cause production shutdown in severe cases. [0003] At present, the wax removal methods commonly used in oil wells include mechanical wax removal, thermal wax removal and chemical wax removal. Among them, the chemical method to remove wax and prevent wax from oil wells is current...
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Patent Timeline
Login to View More IPC IPC(8): C09K8/524C08F251/02C08F220/58C08B3/06
CPCC08B3/06C08F251/02C09K8/524C08F220/585
Inventor 刘茂龙林茂梅
Owner FOSHAN WANYANG BIOLOGICAL TECH CO LTD