钻井业常用专业词汇
极限应变 ultimate strain超深预探井 ultradeep prospecting well特低密度 ultralow density超声波 ultrasonography紫外线光谱 ultraviolet spectroscopy欠压实 uncompaction松散地层 unconsolidated formation在低温低压条件下 under low temperature low pressure负压钻井 underbalanced drilling欠平衡钻井 underbanlanced drilling未动用石油储藏 undeveloped reservoir不均匀 uneven单轴抗压强度 uniaxial compressive strength单向压力暂堵剂 unidirectional pressure temporary plugging additive压力异常 unnormal formation pressure欠饱和盐水钻井液 unsaturated salt water drilling fluid易坍塌泥页岩 unstable shale上部地层 upper formation /segment上古生界 upper palaeozoic上游领域 upstream铀 uranium语际翻译 版权所有
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