Stabilizer for blade drilling bit

The utility model relates to a stabilizer for a drag bit, with a total length of 800-640 mm. The upper part of the stabilizer is provided with internal threads connected with a drill stem, and the lower part is provided with external threads connected with the drag bit. A stabilizer body is provided...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN HUBIN, GONG GUANGXIN
Format:	Patent
Sprache:	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 a stabilizer for a drag bit, with a total length of 800-640 mm. The upper part of the stabilizer is provided with internal threads connected with a drill stem, and the lower part is provided with external threads connected with the drag bit. A stabilizer body is provided with a stabilizing section of a spiral band. The outer diameter of the stabilizer is only 1 mm smaller than that of the bit. The stabilizing section is provided with large flow channels, and the spiral band is provided with slots and is welded with abrasion-proof elements. The lower end of the stabilizing section abuts on an external thread shoulder. The utility model directly connected with the upper part of the drag bit enhances the stability of the drag bit to avoid well deviation.