Corrosion testing system for multiphase environments using electrochemical and weight-loss methods

A test system, a technique for weight loss, applied in the field of multi-phase, multi-method testing systems, which can solve the problems of different experimental setups, increasing time and cost, increasing the number of tests, etc.

Inactive Publication Date: 2020-03-06
SAUDI ARABIAN OIL CO
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  • Abstract
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Problems solved by technology

However, typically these types of tests require different experimental setups, and this further increases the number of tests required, which further increases time and cost

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  • Corrosion testing system for multiphase environments using electrochemical and weight-loss methods
  • Corrosion testing system for multiphase environments using electrochemical and weight-loss methods
  • Corrosion testing system for multiphase environments using electrochemical and weight-loss methods

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Embodiment Construction

[0019] The invention will now be described with reference to the accompanying drawings, which form a part hereof, and by way of drawing show exemplary embodiments and / or examples of the invention. It is to be understood that other embodiments may be implemented and various structural changes may be made without departing from the spirit of the present invention. For example, the disclosed subject matter can be implemented as a method, device, assembly, or system, among other things.

[0020] Furthermore, it should be recognized that terms may have nuanced meanings suggested or implied in the context beyond the expressly stated meaning. Likewise, the phrase "in one embodiment" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment" as used herein does not necessarily refer to a different embodiment. For example, it is contemplated that claimed subject matter may be based on combinations of individual example embodiments or combi...

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Abstract

A system for measuring corrosion rates in a multiphase environment using electrochemical and weight-loss measurement methods on test coupons is provided. A plurality of inserts is disposed within a test vessel in a vertical arrangement. Each insert is provided with at least one test coupon and at least one working electrode that are exposed to the corrosive test environment within vessel. A test fluid mixture is added to the vessel and the temperature and pressure is maintained such that the mixture exists in a multiphase condition that has a vertical stratification such that each insert is exposed to a different phase of the fluid. Electrical signals from the working electrode is measured to determine the corrosion rate using an electrochemical method. The pre-test weight of the coupon iscompared to the post-test weight to determine the corrosion rate using a weight-loss method.

Description

technical field [0001] This patent application relates generally to corrosion testing, and more specifically to systems for multiphase, multimethod testing. Background technique [0002] Performing corrosion measurements is generally a time-consuming process because it requires exposing the test sample to a corrosive environment for an extended duration of time, and then measuring the amount of corrosion of the test sample. Typically, one environmental condition is tested during each test run. Therefore, several separate corrosion tests must be performed if changing environments are to be evaluated. Additionally, test systems rely on measuring the weight loss of a test sample during testing, or on measuring electrical signals in a corrosive environment. However, typically these types of tests require different experimental setups, and this further increases the number of tests required, which further increases time and cost. [0003] The present invention provides solutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/04
CPCG01N17/046G01N17/02
Inventor Y.T.阿尔-加纳比T.A.阿尔-卡尔迪
Owner SAUDI ARABIAN OIL CO
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