1 反应釜试验 Autoclave test

• 依据：作业方规定、ASTM G111、SY/T5273等

 

    Standard：Operatorspecified, ASTM G111, SY/T 5273, etc

 

• 目的：获得缓蚀剂质量的基本情况

 

    Purpose:CI qualification - Base case

 

• 优点：可模拟现场腐蚀性气体分压（H2S、CO2）、温度、水化学，也包括预分配性试验

 

    Advantages:Testing includes field partial pressure, H2S/CO2, temperature, water chemistry, pre-partitioning can be included

 

• 局限性：没有明确规定的壁面剪切力，需要根据具体情况进行调整。ASTM指南的指导性有限

 

    Limits:No specified shear stress, adjustment required for specific conditions. ASTM guidance is limited.        

2 静态试验 Static test

 

• 依据：ASTM G31、JB/T 7901

 

    Standard：ASTM G31, JB/T 7901

 

• 目的：与反应釜实验相似，但仅限低压使用

 

    Purpose：Set up in line with autoclave(low pressure only)

 

• 优点：反应全面腐蚀性能，也可以用于缓蚀剂试验

 

    Advantages: Generic corrosion performance, set up can also be used for CI testing;

 

• 局限性：并非特定用于缓蚀剂评价与复杂的预分配性试验

 

    Limits: Not specific to CI evaluation, complicated pre-partitioning         

3 流动试验 Flow tests

 

• 依据：ASTM G170

 

    Standard: ASTM G170

 

• 目的：流动测试概述

 

Purpose: Overvies of flow testing

 

• 优点：提供了一些试验结构框架

 

Advantages: Give some structure

 

• 局限性：不完整、缺少流动环路试验

 

Limits: Not complete and misses flow loop test         

4 冲击溅射试验 Jet Impingement（JI）

 

• 依据：ASTM G170，ASTM G208

 

    Standard：ASTM G170， ASTM G208

 

• 目的：流动影响测试、分级、预筛选

 

    Purpose：Testing of flow impact, ranking, pre-selection

 

• 优点：高剪切力、相对便宜(测试费）、快速出结果

 

    Advantages：High shear, relative cheap, fast results

 

• 局限性：不可控剪切力、与实际情况没有明确的关联

 

    Limits: Uncontrolled shear, unclear correlation with reality         

5 旋转笼Rotating cage(RC)

 

• 依据：ASTM G184、ASTM G202

 

    Standard: ASTM G184, ASTM G202

 

• 目的：测试、分级、预筛选

 

    Purpose: Testing, ranking, pre-selection

 

• 优点：简单、可分级、大表面

 

    Advantages: Simple, ranking, large surface

 

• 局限性：反映的流动影响不具有代表性

 

    Limits: Flow impact not representative         

6 旋转圆柱Rotating cylinder(RD)

 

• 依据：ASTM G185

 

    Standard: ASTM G185

 

• 目的：动态缓蚀剂质量评价

 

    Purpose：CI qualification for flow

 

• 优点：可以模拟现场流速和剪切力

 

    Advantage: Mimic field velocity and wall shear stress

 

• 局限性：低于50Pa时可靠        

 

    Limits: Only reliable for relative low shear ＜50Pa

7 小瓶试验 Kettle/bubble test

 

• 依据：NACE 1D196

 

    Standard: NACE 1D196

 

• 目的：测试、排序、预筛选

 

    Purpose: testing, ranking, pre-selection

 

• 优点：简单、低成本

 

    Advantage: simple, low cost

 

• 局限性：只适合常压CO2

 

    Limits：only atmospheric CO2         

8 环路试验Flow loop(FL)

 

• 依据：作业方规定

 

    Standard: Operator specified

 

• 目的：动态缓蚀剂质量评价

 

    Purpose：CI qualification for flow

 

• 优点：高剪切力、最接近现场工况

 

    Advantage: Most realistic field comparison can go to higher shear stress

 

• 局限性：贵、复杂、设备少

 

    Limits: more expensive and complicated, limited availability         

9 分配性试验（与缓蚀剂质量相关的宽泛方法）

 

• 目的：反映生产工艺（采用LC-MS测试残余量）

 

    Purpose: Indication of behavior in the process(residuals, LC-MS)

 

• 优点：是必要的，尤其是在条件改变后进行评估时（包括：时间或管道中含水率、盐度和持液率）

 

    Advantage: necessary especially for evaluation of changing condition(over time or in a pipeline water rations, salinity and water hold up situations)

 

• 局限性：可靠性差

 

    Limits：several methods not all reliable         

10 转轮试验Wheel test

 

• 依据：NACE 1D182

 

    Standard: NACE 1D182

 

• 目的：测试、排序、预筛选

 

    Purpose: testing, ranking, pre-selection

 

• 优点：简单、低成本

 

    Advantage: simple, low cost

 

• 局限性：只适合常压CO2

 

    Limits: only atmospheric CO2         

11 垢下腐蚀（LPR或沉积物）Under deposit in beaker with LPR

 

• 目的：垢下缓蚀剂测试

 

    Purpose: CI testing for under deposit

 

• 优点：反映垢对缓蚀剂效果的影响，也与酸腐蚀有关

 

    Advantage: indication of effect of specific deposits, also relevant for sour

 

• 局限性：相对性能、不准确

 

    Limits: relative performance, not accurate         

12 在参考表面沉积一些特定颗粒的垢下腐蚀Under deposit, some grains at a reference surface

 

• 目的：垢下缓蚀剂测试

 

    Purpose: CI testing for under deposit

 

• 优点：反映特定沉积物的影响，也与酸腐蚀有关

 

    Advantage: indication of effect of specific deposits, also relevant for sour

 

• 局限性：相对性能、不准确

 

    Limits: relative performance, not accurate         

13 焊缝腐蚀试验Preferential weld corrosion test

 

• 目的：在CO2腐蚀条件下,低镍焊缝的缓蚀剂质检

 

    Purpose：low Ni weld for CI qualification in sweet conditions

 

• 优点：高压反应釜中或A依照STM G31开展测试，评价结果是可靠的

 

    Advantage: in autoclave or ASTM G31, reliable for its purpose

 

• 局限性：复杂、贵

 

    Limits：complicated and expensive         

14 缓蚀剂预膜测试Batch inhibition test

 

• 目的：缓蚀剂预膜质量持久性测试

 

    Purpose: Batch inhibitor qualification persistency

 

• 优点：封闭的高压反应釜，在测试前用一定浓度的缓蚀剂浸渍和滴注试样

 

    Advantage: closed autoclave with dip and drip of concentration CI application of specimen before testing

 

• 局限性：通常没有电化学评价

 

    Limits: typically no electrochemical evaluation