Home » Events » Industry News
Oil and gas pipeline crack detection
Sources: this site Click: Date: 2016-2-18 1:43:18
Pipeline transport with transport capacity, low safety, transportation cost advantages, is the best means of transporting petroleum products. However, because pipeline cracks and defects have a greater impact on the safe operation of the pipeline, cracks in the structure itself is also more complicated.
By the intelligent instrumentation detected cracks and defects are generally located inside and outside wall or coating. Cracks and defects in the pipe can generally be divided into two categories: direct cracks and defects, indirect cracks and defects. Cracks and defects directly refers to the state and the wall cracks and defects are directly related . These cracks and defects have a direct impact on the integrity of the pipe or tube sections, such as corrosion, cracks or scratches. Indirect refers cracks and defects relating to the integrity of the pipe material damage or system failure. With the increasing use of time, they can cause a direct pipeline cracks and defects occur. A typical example is the damage to the pipeline cathodic protection system failure or external corrosion coating. Cracks and defects in the pipe can be divided into geometric shape abnormalities, defects in metal damage, cracks and similar cracks.
steel pipe crack is most likely: fatigue cracks, stress corrosion cracking (moderate or high PH value of stress corrosion cracking), hydrogen induced cracking, sulfide stress corrosion cracking, the weld heat-affected zone cracking. According to these crack pipe metal ring to weld and heat affected zone judgment.
By the intelligent instrumentation detected cracks and defects are generally located inside and outside wall or coating. Cracks and defects in the pipe can generally be divided into two categories: direct cracks and defects, indirect cracks and defects. Cracks and defects directly refers to the state and the wall cracks and defects are directly related . These cracks and defects have a direct impact on the integrity of the pipe or tube sections, such as corrosion, cracks or scratches. Indirect refers cracks and defects relating to the integrity of the pipe material damage or system failure. With the increasing use of time, they can cause a direct pipeline cracks and defects occur. A typical example is the damage to the pipeline cathodic protection system failure or external corrosion coating. Cracks and defects in the pipe can be divided into geometric shape abnormalities, defects in metal damage, cracks and similar cracks.
steel pipe crack is most likely: fatigue cracks, stress corrosion cracking (moderate or high PH value of stress corrosion cracking), hydrogen induced cracking, sulfide stress corrosion cracking, the weld heat-affected zone cracking. According to these crack pipe metal ring to weld and heat affected zone judgment.
Previous: Q345b polishing method
