固井水泥石增韧材料的研究进展

发布时间：2019-02-15 08:13

【摘要】：固井水泥石这类脆性材料在井下复杂应力环境下易破坏,导致其封固能力下降。增韧材料可增韧降脆水泥石;水泥石完整性评价方法可用于指导增韧材料研发。本文全面介绍了晶须/纤维、纳米材料、胶乳和颗粒等固井水泥石增韧材料及内源增韧的国内外研究成果,分析了各类增韧材料的特点及发展趋势;本文阐述了增韧力学指标存在的问题,并综述了目前固井领域的水泥石完整性评价方法。通过全面总结固井水泥石增韧材料的研究进展,就增韧材料的发展方向提出建议。随着油气勘探向深部、低渗透、海洋和非常规领域的延伸,水泥石韧性要求越来越高,水泥石增韧材料及技术将会有更加广阔的应用前景。
[Abstract]:The brittle materials such as cementing cement stone are easily destroyed under complex stress environment, which results in the decrease of cementing ability. Toughening material can toughen and debrittleness cement stone, cement stone integrity evaluation method can be used to guide toughening material research and development. In this paper, the domestic and foreign research results of cemented cement stone toughening materials such as whisker / fiber, nano materials, latex and particles are introduced, and the characteristics and development trend of various toughening materials are analyzed. In this paper, the existing problems of toughening mechanical indexes are described, and the present cemented stone integrity evaluation methods in cementing field are summarized. Through summarizing the research progress of cementing cement stone toughening materials, some suggestions on the development of toughening materials are put forward. With the extension of oil and gas exploration to deep, low permeability, marine and unconventional fields, the toughness of cement stone is becoming more and more demanding, and the toughening material and technology of cement stone will have a wider application prospect.
【作者单位】：西南石油大学材料科学与工程学院;中国石油集团钻井工程技术研究院;华北油田公司工程技术研究院;
【基金】：国家科技重大专项(2016ZX05020004-008,2016ZX05052) 四川省应用基础研究项目(2017JY0042) 西南石油大学先进固井材料工程技术中心(校级项目459)
【分类号】：TE256

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