[English] Connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area, long length, as well as repairing the wrongly cut casing in well —— packer-type casing patch-connector.
[English] Connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area, long length, as well as repairing the wrongly cut casing in well —— packer-type casing patch-connector.
修复面积大，长度长，破裂，损坏的井内套管，修复错断的井内套管时所用的新旧套管的连接密封装置—封隔器型套管补接器。