Wax deposition resistant coating for oil pipeline

Abstract

Disclosed is an anti-waxing paint for internal surfaces of oil pipes, which comprises modified polyurethane 20-50%, polyvinylidene fluoride 5-30%, epoxy resin 5-20%, molybdenum sulfide 2-20%, Disclosed is an anti-waxing paint for internal surfaces of oil pipes, which comprises modified polyurethane 20-50%, polyvinylidene fluoride 5-30%, epoxy resin 5-20%, molybdenum sulfide 2-20%, cerium fluoride 2-10%.

Description

technical field

[0001] The invention relates to an anti-wax coating, which is mainly used for the anti-wax coating treatment on the inner surface of oil pipelines during crude oil exploitation and pipeline gathering and transportation. Background technique

[0002] Most of the crude oil produced in my country is highly viscous, easy to condense, and high in wax content. Generally, the wax content is 15% to 25%, and some even reach more than 40%. For high waxy crude oil, due to changes in temperature, pressure and other conditions during oil extraction, storage and transportation, waxes and colloids will be precipitated from the crude oil in large quantities and deposited on the surface of sucker rods of downhole devices, oil pipelines and storage On the inner wall of the oil container, the phenomenon of wax deposition is serious. In terms of crude oil extraction, the oil output capacity of the oil well will be reduced, and the life of the pumping unit will be reduced; in th...