Branch well drifting tool

The utility model relates to the technical field of branch well drilling and completion, in particular to a branch well drifting tool, wherein mounting slots are arranged on various angles of a body outer wall of the branch well drifting tool, springs are arranged in the mounting slots, the outer si...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GAO YANG, LI HU, LI MIN, MENG XIN, LI QINGLE, CHEN ZHENGANG, DENG XU, FENG YUEGANG, ZHANG DUOJIAO, ZHAO YUN, SHANG XIANFEI, ZHAO ZHAN, ZHANG XUE, LIU CHANG, ZHANG SHUAIQIAN, YANG LIN, LIU HENG
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 relates to the technical field of branch well drilling and completion, in particular to a branch well drifting tool, wherein mounting slots are arranged on various angles of a body outer wall of the branch well drifting tool, springs are arranged in the mounting slots, the outer sides of the springs are connected with scraping blades, the scraping blades are fixed on the body outer wall through a fixed pin chuck, and the surfaces of the scraping blades are processed through carburization. The branch well drifting tool is excellent in durability of the scraping blades, prolongs operating time, and body blades can be in contacted with the inner wall of a sleeving in 360 degrees, and can effectively clear away impurities of a well wall. The branch well drifting tool overcomes the defects that a scraping blade of an existing drifting tool is poor in durability and short in operating time, and body blades can not contact with the inner wall of a sleeving in 360 degrees, and can not effectively cl