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
Editorial office of ACTA PETROLEI SINICA . 2008, (3): 438 -441 .  DOI: 10.7623/syxb200803025

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