A performance recovery process for waste heat-insulated oil pipes

Abstract

The invention discloses a waste thermal insulation oil pipe performance recovery process. The process includes the first step of manufacturing a connector, the second step of manufacturing a connecting hoop, the third step of unloading the connecting hoop, the fourth step of flushing the inner surface and the outer surface, the fifth step of conducting heating, the sixth step of conducting cutting, the seventh step of machining the end faces, the eighth step of conducting welding, the ninth step of cutting away one end of a thermal insulation oil pipe, the tenth step of machining the end face through a lathe, the eleventh step of welding the other end of the thermal insulation oil pipe, the twelfth step of conducting quenched-tempered treatment on the welding positioning, the thirteenth step of cutting away an inner flange and an outer flange through turning, the fourteenth step of detecting the strength of the connector, the fifteenth step of drilling holes, the sixteenth step of conducting drying through adhesive blasting, the seventeenth step of conducting coating, the eighteenth step of conducting buckling, the nineteenth step of conducting shot blasting, the twentieth step of conducting coating, the twenty-first step of conducting packaging and conveying the product to a finished product warehouse. The process has the advantages that the standard and API standard requirement can be met, energy conservation and consumption reduction are achieved, and waste is turned into wealth.

Description

technical field [0001] The invention relates to a process for restoring the performance of heat-insulated oil pipes, in particular to a process for restoring the performance of waste heat-insulated oil pipes. Background technique [0002] At present, a large number of waste heat-insulated oil pipes will be produced in oil field production. At present, there are usually two ways to deal with waste heat-insulated oil pipes: one is to treat them as scrap steel and return them to the furnace for smelting; the other is to carry out simple repair treatment. [0003] Using the first method will cause a great waste of resources, consume a lot of energy, and pollute the environment; the second treatment method uses heating or cleaning with a cleaning agent, and after rust removal, select a good state to reprocess the end thread, which is complete repair work. The service life of the waste oil well pipe repaired by this method is not long, and the corrosion points, eccentric wear par...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the large amount of waste heat-insulated oil pipes produced in oilfield production consumes a lot of energy for smelting and pollutes the environment, and the original specifications and mechanical properties of the heat-insulated oil pipes cannot be fundamentally restored when the waste heat-insulated oil pipes are repaired by conventional methods. A recovery process for the performance of waste heat-insulated oil pipes is provided