· Oil casing shows an important role [2019-10-25 点击：2]
Oil casing can be roughly divided into surface casing and surface casing. 2、 Intermediate sleeve. 3、 Production casing. 4、 Drilling casing. The surface casing is mainly used to hang and support the subsequent layers of casing... [READ]

· Analysis of advantages of laser processing petroleum screen pipe [2019-09-25 点击：2]
The main function of oil screen pipe is sand prevention. Due to the geological conditions of oil wells, different sand layers and different steel grades and types of pipes are used. In oil drilling and production, screen pipe... [READ]

· What are the characteristics of extra-thick oil casing [2019-08-15 点击：3]
External thickening of oil casing is one of the basic threads issued by the Petroleum Association, which uses conical pipe round threads to complet... [READ]

· What are the inspection methods for petroleum pipes? [2019-08-15 点击：4]
When the ultrasonic wave is spread in the tested raw materials, the acoustic characteristics of the raw materials and the transformation of the int... [READ]

· High and New Technology of Petroleum Casing: Heat Treatment Technology [2019-08-15 点击：2]
After using this heat treatment method, the impact toughness, tensile strength and damage resistance of oil casing can be effectively improved, and ... [READ]

· Production and Manufacturing Technology of Petroleum Casing [2019-08-15 点击：7]
Oil casing; tubing coupling design is mainly from the point of view of changing the structure of the coupling, mainly the development of anti-cor... [READ]

· The Great Role of Oil Casing [2019-08-15 点击：2]
In the past, when oil exploitation was carried out, simple mechanical tools were used to dig wells, and then oil workers stood on the edge of we... [READ]

· How to classify oil casing? [2019-08-15 点击：1]
According to the strength of steel itself, casing can be divided into different grades, namely J55K55N80L80C90T95P110Q125V150. Wellbore condition and d... [READ]

· How to measure oil casing? [2019-08-15 点击：9]
The measurement method of oil casing overcomes the difficulties of large volume of stainless steel pipe, complex production environment and the ina... [READ]

· Performance of Oil Casing and Its Role in Oil Wells [2019-08-15 点击：10]
Oil casing can be divided into different grades according to the strength of steel itself, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150,... [READ]