Casing is a special tubular product for oil (gas or water) extraction. The product complies with API Spec 5CT Specification for Casing and Tubing, API Spec 5B Specification for Threading, Gauging and Thread Inspection of Casing, Tubing and Ling Pipe Threads and other relevant standards.
The using licence of API symbol for this product has been received. Our company produces different kinds of oil casing of steel grade H40, J55, N80, L80, C90, T95, P110 and Q125. Next,I will introduce something about Technical Performance and Characteristics of the casing. After phosphate treatment or copper plating the screw thread features good wearing resistance, sealability, corrosion resistance, pick resistance and high bonding strength. The stress yield against inside and outside pressure shall be greater than the standard API value. Different kinds of high-grade casing with large caliber.
Now, do you have a deep understanding of the casing pipe? Casing has a very widely use in the oil industry.It plays an important role in the industry. Oil casing pipe is mainly used in oil and gas well drilling and oil and gas transportation. Oil casing pipe is mainly used in the drilling process and after the completion of borehole wall support, to ensure that the drilling process and after completion of the normal operation of the oil Wells.