Oil casing is the lifeline for maintaining oil well operation
Date:2019-06-14 Views:253Time Label:Oil casing is the lifeline for maintaining oil well operation
Oil special pipes are mainly used for oil, gas well drilling and oil and gas transportation. It includes oil drill pipes, oil casings, and oil pipes. Oil drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. The oil casing is mainly used for supporting the well wall during and after the completion of the drilling process to ensure the drilling process and the normal operation of the entire well after completion. The oil pumping pipe mainly transports the oil and gas at the bottom of the oil well to the ground.
Oil casing is the lifeline for maintaining oil well operations. Due to different geological conditions, the state of the downhole is complicated, and the combined action of pulling, pressing, bending and torsional stress acts on the pipe body, which puts high requirements on the quality of the casing itself. Once the casing itself is damaged for some reason, it may result in a reduction in production and even scrapping of the entire well.
According to the strength of the steel itself, the casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150 and so on. Well conditions, different well depths, and different steel grades. The casing itself is also required to have corrosion resistance in a corrosive environment. It is also required that the casing has anti-crushing properties in places with complicated geological conditions.