A centralizer for water conservancy sandblast perforation

The utility model discloses a centralizer for water conservancy sandblast perforation belongs to oil and gas field development construction technical field. The device includes: tubing nipple with right the piece, right the piece including body and a plurality of elasticity boss, the body is circle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAN ZENGHUI, MA YONG, TIAN FUCHUN, GE TENGZE, SHU CHANG, ZHANG ZHIHUA, WANG MINGYAN, HU JINTONG, WU JIANJUN, LIU XUEPENG, WENG BO, NING KUN, MENG LINGPENG, WU TIANHAO, ZHANG XIAOCHUN
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:	The utility model discloses a centralizer for water conservancy sandblast perforation belongs to oil and gas field development construction technical field. The device includes: tubing nipple with right the piece, right the piece including body and a plurality of elasticity boss, the body is circle annular cylindrical shape structure, and the body overlaps on tubing nipple, and a plurality of elasticity bosss are fixed in on the surface of body. Before to oil gas well perforation or behind the completion perforation, realize based on a plurality of elasticity bosss that this centralizer gets into oil gas well or plays to produce oil the gas well. The utility model discloses an overlap the body of ring post dress structure on tubing nipple to with a plurality of elasticity boss fixed connection on the surface of body, form a centralizer for water conservancy sandblast perforation. During rightting the piece and the stifled phenomenon of card appears on this centralizer, thereby can increase the effort that rig