During the test of Ku1 well in Da Zhangtuo underground gas storage tank, MHS packer is blocked and set in stage collar of deviated section.
大张坨地下储气库库1井试油，MHS封隔器在斜井段分级箍时遇阻坐封。
A special unit is used for delivering the plug into pipeline, it is appropriate for temporarily blocked and pressure-released pipe section in pipeline repair operation.
该封堵器采用专用的送进机构送入管道，适用于管道维修作业中暂时封堵已卸压的管段。
A special unit is used for delivering the plug into pipeline, it is appropriate for temporarily blocked and pressure-released pipe section in pipeline repair operation.
该封堵器采用专用的送进机构送入管道，适用于管道维修作业中暂时封堵已卸压的管段。
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