Expanding type pressure-bearing plugging packer

The expanding type pressure-bearing plugging packer comprises an inner cylinder part and an outer cylinder part, the inner cylinder part comprises a central pipe and a circulation pipe set, the outer cylinder part comprises a rubber cylinder, and the rubber cylinder is arranged on the periphery of t...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GAO QINGCHUN, LIU CHUANG, HU KENENG, HU JING, CHEN ZHENGANG, CHEN XIALING, LIU QI, SUN LIWEI, ZHAO HONGXUE, ZHANG WENMIN, ZHOU ZIREN, FENG XIAOQIANG, DENG XU, HUANG ZHIQIANG, WANG XIAOJUN, XU LU, KONG DONGLIANG, WANG HONGFU, ZHAO ZHAN, ZHANG XUE, XU SHUANG, WANG LANLIN, ZHAO LEI, CHEN XIAOYU
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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