Device for alternately injecting liquid and gas into wellhead

The utility model discloses a wellhead device for alternately injecting liquid into gas. The wellhead device comprises a lower four-way connector, an upper four-way connector, a first annulus valve assembly, a second annulus valve assembly, a connecting valve assembly, a liquid injection valve assem...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LIANG FENG, SHI HAIPING, SONG ZEWU, HAN SHAOQIN, XIE CHENGLONG, ZHANG WEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!