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Some Knowledge About Oil Casing
2021-11-18 10:39:07

Oil casing pipe is a steel pipe used to carry oil and oil well walls to ensure the normal operation of the entire oil well after drilling and completion. Each well uses several layers of casing according to different drilling depths and geological conditions. Cement is used for cementing after the casing is run down. It is different from tubing and drill pipe and cannot be reused many times. It is a one-time loss material.

Oil casing pipes are mainly used in the drilling of oil and oil wells and the transportation of oil and gas. It mainly includes oil drill pipe, oil casing pipe, and oil pumping pipe. Oil drill pipe is mainly used to connect drill collars and drill bits and transmit drilling power. Oil casing is mainly used to load the well wall during drilling and after completion to ensure the progress of drilling operations and the normal operation of an entire oil well after completion. The pumping pipe is mainly used to transport the oil and gas at the bottom of the oil well to the ground.

Oil casing is the core point that can maintain the operation of oil wells. Taking into account the different geological conditions, the state of downhole forces is more complicated. Tension, compression, bending and torsion stresses act on the pipe body as a whole, which points out higher requirements for the quality of the casing itself. If the casing itself is damaged due to some circumstances, it may lead to a reduction in the production of the entire well, or even scrap.