Hollow steel continuous pumping rod resistant to H2S corrosion

The invention discloses a hollow steel continuous pumping rod resistant to H2S corrosion. The hollow steel continuous pumping rod resistant to H2S corrosion comprises, by mass, 0.03%-0.08% of C, 0-0.10% of Si, 0.40%-0.7% of Mn, 0-0.01% of P, 0-0.003% of S, 0.4%-0.9% of Cr, 0.2%-0.5% of Mo, 0.1%-0.4%...

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Bibliographische Detailangaben
Hauptverfasser:	Yu Han, Xian Linyun, Wang Haitao, Bi Zongyue, Zhang Xiaofeng, Li Hongbin, Wang Weiliang, Chao Lining
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a hollow steel continuous pumping rod resistant to H2S corrosion. The hollow steel continuous pumping rod resistant to H2S corrosion comprises, by mass, 0.03%-0.08% of C, 0-0.10% of Si, 0.40%-0.7% of Mn, 0-0.01% of P, 0-0.003% of S, 0.4%-0.9% of Cr, 0.2%-0.5% of Mo, 0.1%-0.4% of Cu, 0-0.05% of V, 0-0.04% of Ti and 0-0.04% of Nb. The continuous pumping rod is a complete coiled tubing, the length of the continuous pumping rod is equal to or larger than 61 mm, the diameter of the continuous pumping rod is 25.4-88.9 mm, the yield strength of the continuous pumping rod is equal to or larger than 621 MPa, the tensile strength of the continuous pumping rod is equal to or larger than 689 MPa, and the continuous pumping rod has good H2S corrosion resistance. The length of a single hollow steel continuous pumping rod can reach several kilometers to the greatest extent, the hollow steel continuous pumping rod can be directly guided into a well, the cost is low, working is convenient, and the requ