Title:
PREPARATION METHOD FOR HIGH-STRENGTH SOLUBLE MAGNESIUM ALLOY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/102922
Kind Code:
A1
Abstract:
A preparation method for a high-strength soluble magnesium alloy material, comprising the following steps: (1) making Mg25Ni or Mg30Ni magnesium-nickel intermediate alloy; (2) loading; (3) heating up for melting and alloying; and (4) refining: refining fully alloyed magnesium melt at a temperature of 750+/-20°C, a solvent for refining being RJ-6, and after refining for about 5 min, allowing same to stand for about 10 min. The difficulty of smelting such a magnesium alloy product due to the need to add a nickel element thereto is overcome, and nickel can be evenly distributed in the magnesium alloy. The magnesium alloy material is made into a bridge plug for plugging an oil-gas well, and the bridge plug has excellent tensile strength, maintains sealing tightness, and can be evenly dissolved in a special solution in the later period. The bridge plug is completely soluble at different geological temperatures and under different geological mineralization degree conditions within a specified time, thereby keeping good characteristics.
Inventors:
SHI ZHIGANG (CN)
LIU SHENGHAO (CN)
MENG XIANGTAO (CN)
LIU SHENGHAO (CN)
MENG XIANGTAO (CN)
Application Number:
PCT/CN2019/122014
Publication Date:
June 03, 2021
Filing Date:
November 29, 2019
Export Citation:
Assignee:
FUJIAN KUNFU STOCK CO LTD (CN)
SHANGHAI GEBANG AUTOMATION CO LTD (CN)
SHANGHAI GEBANG AUTOMATION CO LTD (CN)
International Classes:
C22C23/00; E21B43/26
Foreign References:
| CN110106416A | 2019-08-09 | |||
| CN109295368A | 2019-02-01 | |||
| CN109161768A | 2019-01-08 | |||
| CN107523732A | 2017-12-29 | |||
| CN109628810A | 2019-04-16 | |||
| CN104120320A | 2014-10-29 | |||
| CN107385245A | 2017-11-24 | |||
| CA3012511A1 | 2019-01-27 | |||
| JPH07113096A | 1995-05-02 | |||
| JP2017206757A | 2017-11-24 |
Attorney, Agent or Firm:
XIAMEN SHINHWA PATENT & TRADEMARK AGENCY CO., LTD. (CN)
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