Setting ball seat

The utility model discloses a tubular-column-matched setting ball seat which is used for the technology of horizontal well barefoot well completion staged fracturing in oil fields and gas fields. The setting ball seat comprises an upper connector (1), a ball seat body (3), an outer cylinder (7), a s...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG DAFEI, CAO HUI, GE JIWEI, LIN LI'NA, ZHAO ZHENDONG, HA WENLEI, YANG GUANKE, LI ZHAOXING, ZHAO LIQIN, ZHANG XIAOFENG, LI YONGGE, ZHU ZHENGXI, CHEN PING, GAO LEI, LIU FUXI, ZHAO WENLONG, ZHENG WEI, CHEN HEPING
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 tubular-column-matched setting ball seat which is used for the technology of horizontal well barefoot well completion staged fracturing in oil fields and gas fields. The setting ball seat comprises an upper connector (1), a ball seat body (3), an outer cylinder (7), a sliding sleeve outer cylinder (2) and a limiting cylinder (6), wherein the outer cylinder (7) is connected with outer threads of the lower end of the upper connector (1), the upper end of the sliding sleeve outer cylinder (2) is connected with inner threads of the lower end of the upper connector (1), the lower end of the sliding outer cylinder (2) is connected with the limiting cylinder (6) in a threaded mode, the ball seat body (3) is installed inside the sliding sleeve outer cylinder (2) and connected with the limiting cylinder (6) through a shearing pin (4), through holes (8, 9) are formed in the cylinder wall of the sliding sleeve outer cylinder (2) and the side wall of the ball seat body (3), and a locking spr