程仲,李宁,丁翔翔,陈玉山,韩雪银,李天太,张菲菲

• 1:西安石油大学石油工程学院
• 2:中海油能源发展股份有限公司工程技术分公司
• 3:长江大学石油工程学院

摘要(Abstract)：

由于岩屑存在，浅层大位移井井漏频发、扭矩传递困难，对其安全、高效钻进构成严重威胁。在动态岩屑运移模型基础上，考虑到岩屑分布对浅层大位移井ECD和摩阻扭矩的影响，建立了井眼清洁效果评价模型。结合某实钻大位移井对ECD和扭矩进行了定量分析，计算结果表明：随着裸眼段的延长和井筒内岩屑的增加，ECD和井口扭矩增幅可能为清洁状态下的一倍或数倍，井漏风险加大；为了减小浅层大位移井钻进风险，需要对钻井设计和钻井施工方案进行全面优化，控制井筒内岩屑，进而降低井筒内ECD和扭矩消耗。

关键词(KeyWords)： 井眼清洁;大位移井;效果评价;优化方法;浅层海域

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“大位移井钻井过程中动态岩屑运移与钻柱受力耦合机理研究”(51874045)

作者(Author): 程仲,李宁,丁翔翔,陈玉山,韩雪银,李天太,张菲菲

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