评价井，在地震精查的基础上（复杂区应在三维地震评价的基础上），在已获得工业性油气流的圈闭上，为查明油气藏类型、构造形态、油气层厚度及物性变化，评价油气田的规模、产能及经济价值，以建立探明储量为目的而钻的探井。
n. test well
misc. appraisal well ; evaluation well
T726井是中国石化西北分公司在塔河油田西南部边缘地区布置的一口重点评价井。
Well-T726 is an important appraisal well, which is arranged in the south-west frontier area of Tahe oilfield by Northwest Exploration Bureau of SINOPEC.
这套技术方法已经在牛东地区评价井、开发井中推广应用，并在老井治理和补层建议中取得了初步成效。
It has been widely used in appraisal Wells and development Wells in block Niudong, and has taken notable effects in old well reconstruction and re-perforation recommendation.
井眼曲率作为衡量工具造斜能力和评价井身质量的重要指标之一，对实现安全、快速、高效钻井具有重要意义。
Borehole curvature is one of significant index to evaluate Angle build-up capacity and wellbore quality, is very important to realize safety, speedily and efficiently drilling.
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