Deep well stress self-adaptive compensation fracturing process pipe column

The utility model relates to the technical field of fracturing process pipe columns, and discloses a deep well stress self-adaptive compensation fracturing process pipe column which comprises a protective barrel, an upper fixing barrel and a lower fixing barrel, the outer surface of the upper fixing...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FU RUI, DUAN XIAODONG, HOU HAIWEI, SONG JIANHUA, WANG LIANZHONG, GUO CHAO, DONG FANGJIE, LIU XIANGYANG, GAO ZHAOLI, WEI JUNFAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model relates to the technical field of fracturing process pipe columns, and discloses a deep well stress self-adaptive compensation fracturing process pipe column which comprises a protective barrel, an upper fixing barrel and a lower fixing barrel, the outer surface of the upper fixing barrel and the outer surface of the lower fixing barrel are both fixedly connected with the inner wall of the protective barrel, a pipe column body is placed in the protective barrel, and the lower fixing barrel is fixedly connected with the inner wall of the protective barrel. Compression springs arranged at equal intervals are mounted on the outer surface of the tubular column, and the ends, away from each other, of each set of compression springs are fixedly connected with the inner wall of the protective barrel; the upper fixing cylinder is matched with the lower fixing cylinder, the first connecting ring, the first limiting ring, the connecting spring, the second connecting ring, the second limiting ring and