油井水泥环降脆增韧作用机理研究
李早元, 郭小阳, 罗发强, 董兆雄, 罗平亚
Research on mechanism of increasing flexibility and decreasing brittleness of cement sheath in oil well
LI Zaoyuan, GUO Xiaoyang, LUO Faqiang, DONG Zhaoxiong, LUO Pingya
石油学报 . 2008, (3): 438 -441 .  DOI: 10.7623/syxb200803025