Novel oil well pressure testing assembly

Provided is a novel oil well pressure testing assembly includes: body, the board of blocking, nonrust steel ball, sliding sleeve, pin, sand setting screen pipe, sieve mesh, bottom gas thread, characterized by: the novel oil well pressure testing assembly body be the cylindric hollow structure of red...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZOU HUIJU, GAO XIXIANG, ZHANG SHUANGLIN, HAO JIANGUANG, WU YISAN, WANG BAOZHI, ZOU JINYING
Format: Patent
Sprache:eng
Schlagworte:
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