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
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