An electric heating oil pipeline

Abstract

The invention belongs to the field of oil production equipment in oilfields, and in particular relates to an electrically heated oil delivery pipe. It includes the oil pipe body and the coupling assembly, and two adjacent oil pipe bodies are connected through the coupling assembly; the oil pipe body includes the base layer made of carbon steel and the inner lining layer made of stainless steel, and the inner side of the base layer is processed with two There are two spiral grooves of the same size that do not intersect with each other. Each of the two spiral grooves contains an electric heating cable. The two electric heating cables spirally coil along the inner wall of the base layer and extend to both ends of the base layer. Each end is connected with a connection terminal, and the connection terminal is fixed on the end surface of the base layer. The invention can make the heat tracing installation and construction of the oil pipe simpler by embedding electric heating cables inside the oil pipe, and effectively improve the heat tracing effect at the same time.

Description

technical field [0001] The invention belongs to the field of oil production equipment in oilfields, and in particular relates to an electrically heated oil delivery pipe. Background technique [0002] Oil pipeline is a common infrastructure in oilfield production. During actual use, the inner wall of the oil pipe will be waxed and scaled, which will affect the normal operation of the oil pipe. In the prior art, one of the means to solve this problem is to heat the oil pipe to melt the wax and grease by raising the temperature. At present, the oil pipe heating technology has the following problems: 1. During construction, it is necessary to manually wrap the heating cable around the outside of the oil pipe and cover the insulation cotton, and also need external wiring, waterproof protection, etc. Farther away, the utilization rate of heat is low, and the energy consumption is large; 2. The structure is too bloated, which is only suitable for use on the ground, not for under...

AI Technical Summary

Problems solved by technology

At present, the oil pipe heating technology has the following problems: 1. During construction, it is necessary to manually wrap the heating cable around the outside of the oil pipe and cover the insulation cotton, and also need external wiring, waterproof protection, etc. It is far away, the utilization rate of heat is low, and the energy consumption is large; 2. The structure is too bloated, which is only suitable for use on the ground, not suitable for use in underground mines

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