Expanding type water injection packer

The utility model discloses an expanding type water injection packer. The expanding type water injection packer comprises a central tube (2), an upper connector (1) and a lower connector (15), wherein the upper connector (1) and the lower connector (15) are arranged at two ends of the central tube (...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WANG LEI, JIANG JIANPING, ZENG WENGUANG, HE LONG, SHI YUMIN, JIAO BAOLEI, LI ZIJIA, LU KAIDONG, WANG DAJIANG, LI BIN, ZHANG JIANJUN, PAN YANGQIU, WU WENMING, LIN TAO
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The utility model discloses an expanding type water injection packer. The expanding type water injection packer comprises a central tube (2), an upper connector (1) and a lower connector (15), wherein the upper connector (1) and the lower connector (15) are arranged at two ends of the central tube (2), a seat sealing piston outer sleeve (10), a seat sealing locking connector (12) and a floating connector (14) are sleeved on the outer side of the central tube (2) from top to bottom in sequence, a seat sealing piston (9) is arranged between the seat sealing piston outer sleeve (10) and the central tube (2), a central tube seat sealing liquid inlet hole (19) is formed in a position, corresponding to the lower portion of the seat sealing piston (9), of the central tube (2), and a check valve (11) limited by the seat sealing piston outer sleeve (10) is arranged inside the seat sealing locking connector (12). The expanding type water injection packer achieves seat sealing of a rubber sleeve under predetermined pres