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油田化学四川油气田定向井钻井液技术·························································……(1),16水平井钻井液的特殊要求及国内简况·,··············································……(l),24气井排水采气过程中碳酸钙垢的形成与防止·······································……(l),29漂珠低密度防气窜水泥应用研究·························… |
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