Rare earth containedseamless steel tube ZT540 for drilling and production method of rare earth containedseamless steel tube

The invention relates to a rare earth contained seamless steel tube ZT540 for drilling and a production method of the rare earth contained seamless steel tube. Blast furnace molten iron is pretreated, so that the content of S is reduced to be lower than 0.010% in percentage by weight; the treated blast furnace molten iron and waste steel are added to a top-bottom combined blowing converter for smelting, a deoxidizing alloy is adopted in the steel tapping process for deoxidation and alloying, an aluminum deoxidation process is adopted for final deoxidation, slag stopping or slagging off are performed in the steel tapping process, white lime blocks are added after alloys are added in the steel tapping process, molten steel after smelting is added to an LF (ladle furnace) for refining, argon is blown during refining, and the mixture is heated in a gradual temperature increasing manner; slagging, desulfuration, ingredient adjustment and temperature increasing operation are performed; white slag manufacturing operation is adopted, ferrochromium and a ferrotitanium alloy are added; and finally, soft blowing argon at the bottom is kept, rare earth wires are added, and VD vacuum treatment, continuous round billet casting, tube billet heating, punching, continuous tube rolling, fixed-stretch reducing, bed cooling, saw cutting, straightening, flaw detection and chamfering are performed.