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本文介绍了大庆油田由自喷开采转为机械开采时，实现不压井起下泵抽设备、分层开采、堵水和测试的工艺管柱结构及施工工艺、现场使用效果等。
This paper introduces the structure, construction technology and field application of the process pipe string in Daqing Oilfield from spontaneous extraction to mechanical extraction when pumping down equipment without pumping, stratified mining, water blocking and testing.