Нефтяное месторождение трубы

Oil is mainly used in oil, special pipe gas and oil and gas drilling. It includes petroleum drill pipe, oil pipe, casing. Mainly used in oil drilling pipe connection drill collars and drill and drilling. Mainly used in oil drilling process and casing after completion of the shaft, in order to ensure the process of drilling and completion of the normal operation of oil after. The major oil pumping oil at the bottom of the oil and gas transmission to the ground. Oil Wells are running the casing. Due to the different geological conditions, downhole stress state is complex, and pressure, bend, torsion stress on comprehensive effect of casing tube, it presents a high quality of itself. Once the casing damage due to some reason itself, may cause the whole production Wells, even scrapped. According to the strength of steel itself can be divided into different grade steel casing J55, namely, K55 N80, L80, C90, T95, P110, Q125, V150, etc. Well conditions and different, use steel grade is different also. In corrosive environment also requires casing itself with corrosion resistant properties. In place of the complicated geological conditions are required is crowded destroy casing.