Screw pump injection-production integrated mining device

Screw pump injection-production integrated mining device

A screw pump injection-production integrated mining device comprises a first steam injection switch valve and a steam injection protection valve, the first end of a steam injection flow channel of thefirst steam injection switch valve is communicated with steam injection equipment, the second end of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BI YOUJUN, TIAN YONG, TONG YUBAO, WANG XIANGRONG, YANG YUYAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:A screw pump injection-production integrated mining device comprises a first steam injection switch valve and a steam injection protection valve, the first end of a steam injection flow channel of thefirst steam injection switch valve is communicated with steam injection equipment, the second end of the steam injection flow channel is communicated with an annular space between oil sleeves, and the steam injection protection valve is connected below the steam injection switch valve. Wherein an inner hole of the steam injection switch valve is communicated with a through hole of the steam injection protection valve, the second steam injection switch valve is arranged below the steam injection protection valve, a first end of a steam injection flow channel of the second steam injection switch valve is communicated with the through hole of the steam injection protection valve, and a second end of the steam injection flow channel is communicated with an annulus between the oil casing pipes; the function of annular