闭式机械找堵水工艺技术是一新型的找堵水技术。它通过一特殊的封隔器和井下换向装置，将找水、堵水工艺有机地结合起来，实现不动管柱多级分层找水、堵水、调层生产等工艺；在封隔器多级使用时，可逐级验证封隔器及管柱的密封性。文内主要介绍了该项技术的结构、原理、主要技术参数、现场试验及应用效果。 Closed mechanical water plugging process technology is looking for a new type of water plugging technology. It through a special packer and downhole reversing device, will find water, water shut-off process organically combine to achieve multi-level stratified stratified to find water, water shutoff, transfer layer production process; in the packer Multi-level use of the device, the packer and column can be verified step by step seal. The article mainly introduces the structure, principle, main technical parameters, field test and application effect of the technology.