Soluble magnesium alloy for low-salinity oil well and preparation method of soluble magnesium alloy

The invention discloses a soluble magnesium alloy for a low-salinity oil well and a preparation method of the soluble magnesium alloy. The soluble magnesium alloy comprises the following components in percentage by mass: 6.1-12.0% of X and the balance of Mg, wherein X is selected from a combination...

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Hauptverfasser:	ZHAO DAZHI, ZHANG CAIGAN, XU RUIGAO, ZHU FUSHENG, ZHOU CHENYANG, YUE QICHI, YANG QING, LIAO QIYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PUNCHING METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a soluble magnesium alloy for a low-salinity oil well and a preparation method of the soluble magnesium alloy. The soluble magnesium alloy comprises the following components in percentage by mass: 6.1-12.0% of X and the balance of Mg, wherein X is selected from a combination of at least four elements of Sc, Ti, Mn, Fe, Co, Ni, Zn, Cu and Y. The soluble magnesium alloy disclosed by the invention can be automatically dissolved in a low-temperature and low-salinity oil-gas well, has good strength performance and plasticity, and can omit drilling, grinding and recycling procedures, reduce engineering risks, save construction time, improve construction efficiency and avoid damage of drilling cuttings and circulating fluid to a reservoir. In addition, the preparation method of the soluble magnesium alloy is simple and can be used for industrial production. 本发明公开了一种用于低矿化度油井的可溶镁合金及其制备方法，该可溶镁合金按质量百分比包括：X：6.1％-12.0％，余量为Mg；其中，所述X选自Sc、Ti、Mn、Fe、Co、Ni、Zn、Cu和Y中至少4种元素的组合。本发明的可溶镁合金能够在低温度且低矿化度的油气井下自行溶解，