元坝区块须家河组地层极易发生井漏，增加了钻井风险，严重影响了施工进度。分析了须家河组地层的漏失原因和堵漏难点，介绍了雷特超强堵漏剂的堵漏机理和性能优势，对雷特承压堵漏技术在元陆9井须家河组地层的成功堵漏实践进行了详细剖析。现场应用表明：雷特承压堵漏技术适用于须家河组地层，在相同漏失程度下，雷特堵漏的施工时间仅为常规堵漏的1/10，堵漏材料的消耗量仅为常规堵漏的1/19，一次堵漏成功率100％，堵漏效果显著，为类似地层的堵漏施工提供参考。%Lost circulation is often happened in the stratum of Xujiahe Fm in Yuanba Block , which greatly increa-ses the drilling risk , and affects the construction schedule seriously .The causes of leakage and difficulties of plug-ging in the stratum of Xujiahe Fm were analyzed .The plugging mechanism and performance advantage of Neotoy superstrong lost circulation additive were introduced , and the practice of successful plugging by Neotoy bearing pressure plugging technology in the stratum of Xujiahe Fm in Yuanba Block was analyzed in-detail.The field appli-cation showed that the Neotoy bearing pressure plugging technology was applicable to Xujiahe Fm .In the same de-gree of leakage , the construction time of Neotoy plugging was only 1/10 than that of normal plugging , and the con-sumption of plugging materials was only 1/19.The success rate of initial plugging was 100 percents, and the plug-ging effect was notable .It provides powerful reference for the plugging operation of similar stratum .
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