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Onsite test device for testing concentration distribution of corrosion inhibitor, and method thereof

A technology of concentration distribution and on-site testing, which is applied in the direction of measuring devices, particle size analysis, and analytical materials, etc., can solve the problems of not being able to give full play to the anticorrosion effect of corrosion inhibitors, staying in numerical simulation, waste of corrosion inhibitors, etc.

Active Publication Date: 2018-04-13
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, there are very few studies on the concentration distribution of corrosion inhibitors inside pipelines. Most of the studies are limited to numerical simulation and theoretical analysis, which cannot objectively and truly reflect the actual situation on site, and cannot give full play to the anticorrosion effect of corrosion inhibitors, resulting in corrosion inhibition. Waste of agent

Method used

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  • Onsite test device for testing concentration distribution of corrosion inhibitor, and method thereof
  • Onsite test device for testing concentration distribution of corrosion inhibitor, and method thereof
  • Onsite test device for testing concentration distribution of corrosion inhibitor, and method thereof

Examples

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Embodiment Construction

[0078] In this embodiment, the test loop is installed on the bypass pipeline of a section of the pipeline on site.

[0079] Such as figure 1As shown, a field test device for corrosion inhibitor concentration distribution test is characterized in that it includes fuel gas pipeline 1, acid gas pipeline 2, pressure regulating module 3, heating furnace 4, flow meter 5, acid gas valve 6, fuel gas Processing module 7, horizontal test module 8, first detection area 9, second detection area 10, third detection area 11, elbow test module 12, pressure sensor 13, temperature sensor 14, fourth detection area 15, vertical test module 16. Fifth detection area 17, sixth detection area 18, inlet separator valve 19, separator 20, air outlet valve 21, continuous injection of corrosion inhibitor module 22, corrosion inhibitor droplet size test module 23, test ring Road 24;

[0080] The pressure regulation module 3, the heating furnace 4, the horizontal test module 8, the elbow test module 12, ...

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Abstract

The invention relates to an onsite test device for testing the concentration distribution of a corrosion inhibitor, and a method thereof, and belongs to the technical field of petroleum and natural gas engineering. The method comprises the following steps: designing a corrosion inhibitor continuous-charging module, testing the influences of the type, the concentration, the temperature, the charging amount and the corrosion inhibitor liquid drop particle size of different corrosion inhibitors on the concentration distribution rule of a corrosion inhibitor; designing a corrosion inhibitor liquiddrop particle size test module, and testing the particle size of corrosion inhibitor liquid drops sprayed by several onsite common nozzles through experiments; and designing a corrosion inhibitor concentration analysis sampler to provide a means and way for circular test studying of the concentration distribution of the corrosion inhibitor. The onsite test device for testing the concentration distribution of the corrosion inhibitor, and the method thereof are used to test the concrete distribution of the corrosion inhibitor in a pipeline under different angle bends, different positions to a charging point, different pipeline gas pressures, different pipeline gas temperatures and different charging technology conditions and study the effective protection length of the corrosion inhibitor under different charging technologies.

Description

technical field [0001] The invention relates to a field test device and method for testing the concentration distribution of a corrosion inhibitor, belonging to the technical field of petroleum and natural gas engineering. Background technique [0002] With the development of the natural gas industry, especially the successive development of oil and gas fields containing corrosive media such as hydrogen sulfide and carbon dioxide, more and more attention has been paid to the corrosion and protection of equipment and pipelines in natural gas gathering and transportation systems. At present, in the anticorrosion process of wet natural gas pipelines, continuous injection of corrosion inhibitors is a cost-effective way. The process of continuous injection of corrosion inhibitor is to repair and supplement the thinned corrosion inhibitor liquid film under the long-term erosion of air flow. Whether it can really play the role of repair and replenishment depends on the movement an...

Claims

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Application Information

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IPC IPC(8): G01N21/35G01N15/02
CPCG01N15/0205G01N21/35
Inventor 刘武曲国健谷雪琴郭琴
Owner SOUTHWEST PETROLEUM UNIV
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