Steam distribution device with steam injection holes varied in distribution density

A steam distribution device with steam injection holes varied in distribution density comprises an upper joint, a steam gathering protective sleeve, a steam distribution pipe and a lower joint and is characterized in that the upper joint is in threaded connection with the upper end of the steam dist...

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Bibliographische Detailangaben
Hauptverfasser:	YAO LIANYONG, LIANG FUYUAN, MA HUI, YUAN FANG, LIU YING, ZHANG DEJIE, FU JITONG
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 steam distribution device with steam injection holes varied in distribution density comprises an upper joint, a steam gathering protective sleeve, a steam distribution pipe and a lower joint and is characterized in that the upper joint is in threaded connection with the upper end of the steam distribution pipe, lower end of the steam distribution pipe is connected with the lower joint, the steam gathering protective sleeve is welded on the lower end of the upper joint, a gap is arranged between the steam gathering protective sleeve and the steam distribution pipe, and steam injection holes are in spiral distribution in the steam gathering protective sleeve and on the periphery of the steam distribution pipe. The split body of the steam distribution device comprises several sections, wherein the lower joint of a first section is connected with the upper joint of a second section, the lower joint of a second section is connected with the upper joint of a third section, the lower joint of a third section is co