Deep sea thermocline environment oil pipeline cathode protection process simulation device

Abstract

The invention discloses a deep sea thermocline environment oil pipeline cathode protection process simulation device and belongs to the technical field of oil pipeline cathode protection. The simulation device comprises a plurality of pipelines accommodating seawater with different temperatures. Each pipeline is internally provided with a sacrificial anode, a reference electrode and a simulation subsea pipeline used for simulating the oil pipeline. The multiple pipelines are connected in sequence. A sand filter plate is connected between the two adjacent pipelines. The simulation subsea pipelines axially penetrate through the centers of the corresponding sand filter plates. The simulation subsea pipelines are connected with the corresponding sacrificial anodes. Voltage acquisition devicesare electrically connected between the simulation subsea pipelines and the corresponding reference electrodes. The deep sea thermocline environment oil pipeline cathode protection process simulation device can be used for simulating an inhomogeneous medium environment when the simulation subsea pipelines pass through a thermocline to be laid to acquire cathode protection parameters and facilitatessimulation study on the oil and gas pipeline cathode protection process under the deep sea thermocline environment.

Description

technical field [0001] The invention belongs to the technical field of cathodic protection of oil pipelines, and in particular relates to a device for simulating the cathodic protection process of oil pipelines in a deep-sea thermocline environment. Background technique [0002] The exploitation of my country's offshore oil and gas resources is also rapidly developing into the deep sea. However, changes in the deep-sea environment have brought many challenges to the development of deep-sea marine engineering, such as the corrosion and protection of metal materials in the deep-sea environment. Deep-sea engineering facilities are generally expensive, difficult to install and maintain, and once they are damaged by corrosion during service, huge economic losses will occur. In order to ensure the long-term safe and stable operation of deep-sea engineering facilities, reliable anti-corrosion measures must be adopted to avoid corrosion of metal materials. As a simple and effectiv...

AI Technical Summary

Problems solved by technology

When oil and gas pipelines are laid from the surface through the thermocline to the seabed, the materials of oil and gas pipelines at different temperatures are coupled due to different corrosion rates, which causes changes in the cathodic protection process of the entire pipeline, which gives the cathodic protection of deep sea oil and gas pipelines Design and implementation pose great difficulties

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