In construction of deep geothermal water well under 1000m, accidents of filtering or sealing material plugging and casing or strainer breaking will happened rather often.
千米以上的深水地热井施工常会出现滤水材料或上水材料蓬堵及套管滤水管折断等事故。
Expandable tubular technology is a process of deforming the casing metal permanently by a hydraulic or a mechanic device so as to complete the well construction.
膨胀管技术是在井下以机械或液压的方法使管材永久变形、完成油气井建井的技术。
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