Small -diameter packer

The utility model relates to a multiple -limb well bores well workover technical field, in particular to small -diameter packer. The device's top connection lower extreme suit is on last center tube, the packing ring, the sealed ring of gluing, go up the slips, go up the cone in order the suit...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KONG QINGTAO, QIU LIN, WANG XIN, DU HONGYAN, DONG JIANHUI, WANG YOUHUI, LI MIN, LI QINGLE, WANG JIAQIANG, LIU YUNHUI, WU CAIXIONG, ZHANG XUE, LIN WENXIN, LIU GUOQING, LI YA'NAN
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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