First, detection methods for oil casing1. Ultrasonic detection: When ultrasonic waves are propagated in the material being tested, the acoustic characteristics of the material and the changes in the internal structure have a certain impact on the propagation of ultrasonic waves. By detecting the deg

There are two main differences between oil casing and oil drill pipe: 1. Different uses; 2. Different materials.Oil casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. Each w

First, it may be due to the stress of spiral submerged arc welded steel pipes. That is, the residual stress and welding stress after the steel pipe is formed.Secondly, it is due to the presence of hydrogen. For example, the flux is not dried enough, the preheating temperature is not sufficient prehe

(1) When we use oil casing to transport water, we should ensure that the water quality is qualified during use, and the water quality must be qualified during use, and the sewage should be cleaned and injected during discharge. During use, we should strengthen the cleaning of the main water pipeline