OBTAINING ELASTOMERIC CORONOELECTRETES FOR SEALING UNITS OF OILFIELD EQUIPMENT

The article discusses the issues of obtaining elastomeric coronoelectretes for sealing units of oilfield equipment. In the conditions of collecting and preparing oil in the fields, the issues of using products based on rubber compounds for sealing during the operation of equipment in direct contact with the borehole fluid, which is to a certain extent an aggressive environment, are relevant. The composition of a polymer elastomeric coronoelectret for sealing units of oil industry equipment has been developed. The composite is based on low-density polyethylene, butadiene - nitrile synthetic rubber of the BNKS-18AMN brand, ethylene copolymer with vinyl acetate (savylene 11104-030), technical gossypol, organic modifiers. The effect of additives on the electret properties of composites is shown. Based on experimental data, it was found that the resulting composite material based on modified low-density polyethylene, savylene, technical gossypol, organomodified layered silicates, butadiene-nitrile rubber in the electret state has sufficient resistance, and giving them an electret state additionally reduces the amount of their swelling in the conditions of production of borehole products.