(1. 太原科技大學(xué) 材料科學(xué)與工程學(xué)院，太原 030024；
2. 太原理工大學(xué) 材料科學(xué)與工程學(xué)院，太原 030024；
3. 南方科技大學(xué) 海洋科學(xué)與工程系，深圳 518055)
摘 要: 水平井分段壓裂技術(shù)是有效提高非常規(guī)能源產(chǎn)量的重要手段，而可溶壓裂封堵工具的應(yīng)用更是極大地提高了開采效率。由于鎂合金具有優(yōu)異的性能且極易腐蝕，已成為制造可溶壓裂封堵工具的首選材料和研究熱點(diǎn)。本文從組織結(jié)構(gòu)、力學(xué)性能和腐蝕速率3個(gè)方面，對Mg-Al、Mg-Zn、含LPSO相的新型Mg-RE及其他合金4個(gè)系列進(jìn)行了綜合評述。并建議工程化應(yīng)用中需要進(jìn)一步建立規(guī)范標(biāo)準(zhǔn)，特別是腐蝕速率測試需要建立統(tǒng)一的測試方法和計(jì)量單位等。
關(guān)鍵字: 可溶鎂合金；壓裂暫堵工具；合金設(shè)計(jì)；力學(xué)性能；腐蝕速率
（1. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
2. School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
3. Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China）
Abstract:The staged fracturing technology of horizontal wells is an important mean to effectively improve the production of unconventional energy. Importantly, the application of soluble fracturing plugging tools has greatly improved the production efficiency. Mg alloys have become the preferred material for manufacturing soluble fracturing plugging tools and the focus of extensive research because of the characteristics of excellent strength, light weight and easy corrosion. In this paper, four series of Mg-Al, Mg-Zn, new Mg-RE alloy containing LPSO phase and other alloys were comprehensively reviewed from three dimensions of microstructure, mechanical properties and corrosion rate. It was also suggested that the specification and standard should be further established in the engineering application. Especially, the unified test method and measurement unit should be established for the corrosion rate test.
Key words: soluble Mg alloys; fracturing temporary plugging tools; alloy design; mechanical properties; corrosion rate
