Dynamic simulation tester in erosion chamber

Abstract

The invention relates to a dynamic analogue test device in corrosion room, which technical scheme is composed of a pipeline system, a temperature control system, a detection system, a corrosion-resistance circulating pump, a corrosion-resistance tank and a control valve, wherein the pipeline system has two lines to realize the corrosion tests at two flow speeds and online flow state detection on the corrosion medium and coupon, while the pipeline is preformed with a plurality of test ports, the invention uses at least one corrosion-resistance circulating pump as power supply to feed and circulate the site water in the corrosion-resistance tank or prepared analogue water in the pipeline, the detection system is provided with a column test device and a coupon test device. The invention has the advantages that the invention can effectively abut lab and site to realize successful transition from indoor corrosion-resistance technique to worksite application and can evaluate and screen oil field prior or novel anti-corrosion technique, anti-corrosion art and anti-corrosion material, while the result is matched with practical application.

Description

1. Technical field: [0001] The invention relates to a corrosion simulation test device, in particular to a dynamic simulation test device in a corrosion chamber which satisfies complex and changeable requirements for dynamic simulation of oilfield produced water quality and process conditions. 2. Background technology: [0002] After several decades of development, Shengli Oilfield has entered the period of ultra-high water-cut production, and the comprehensive water content of the produced fluid has reached more than 90%. Due to the high salinity of the produced water, the high content of chloride ions, microorganisms such as carbon dioxide, hydrogen sulfide, dissolved oxygen, sediment and sulfate-reducing bacteria, and the interaction of high water temperature, flow velocity, and flow state changes, the oilfield Severe corrosion caused by oil-water pipelines and equipment has increasingly become one of the main factors restricting oil field safety production, increasing oi...

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Problems solved by technology

Third, conducting on-site tests for each type of produced water will cause a lot of waste of manpower, material resources and financial resources, and there are unfavorable factors such as long test periods and restrictions by various objective conditions.

[0004] During the project research process, we investigated the corrosion simulation devices of various domestic research institutions and universities. After investigation and retrieval, the current domestic methods for corrosion simulation tests include the following devices in addition to the traditional static coupon test: (1) Chinese Academy of Sciences The normal pressure static simulation test device designed and developed by the Metal Corrosion and Protection Laboratory of the Institute of Metal Research; (2) The dual-flow dynamic corrosion simulation test device designed and developed by the Metal Corrosion and Protection Laboratory of the Institute of Metal Research, Chinese Academy of Sciences, which is mainly used for scientific research The project or teaching demonstration belongs to the category of laboratory research, the design is too simple, the test accuracy is not high, most of them are open systems, and the interference of dissolved oxygen cannot be controlled, and none of them can be combined with the actual production of oilfields, and cannot satisfy the dynamic simulation of oilfield produced water. Complex and changeable water quality and process conditions

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