Prospects of using hydrogenated butadiene-acrylonitrile rubbers for the manufacture of heat-resistant stators for screw drilling machines and pumps

摘要

In the oil industry,increasingly wide use is being made of positive-displacement screw pumps(SPs)employed in oil production from wells and in oil field transfer [1],and increasingly often the need arises to make them heat resistant(occasionally even up to 1 80 deg C).For the drilling of oil wells,use is made of screwdrilling machines(SDMs),for which,because of the high temperature at depth,requirements concerning heat resistance are laid down.