Self-sealing casinghead

The utility model relates to a well device used in the process of oil well drilling and finishing., in particular to a self-sealing casinghead, consisting of a fastening screw rod 1, a connecting bolt 2, a guide operation hole 3, a split loading board 4, a sealing element 5, a pressing board 6 and a...

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Bibliographische Detailangaben
Hauptverfasser:	FENGBO LIN, RONGGANG XIA, WANJIANG ZHENG
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 well device used in the process of oil well drilling and finishing., in particular to a self-sealing casinghead, consisting of a fastening screw rod 1, a connecting bolt 2, a guide operation hole 3, a split loading board 4, a sealing element 5, a pressing board 6 and an anti-theft pin 7. The sealing element 5 is arranged between the split loading board 4 and the pressing board 6, while the split loading board 4 and the pressing board 6 are connected with each other through the fastening screw rod 1. The loading capability and the sealing performance of the utility model can fully satisfy the demand of oil well drilling and finishing, no screw thread is needed in the connection or weld when the utility model is mounted. Besides, the utility model is quick in mounting with a reduction of mounting time by more than 50 percent; and the utility model is small and light, has low price and easy manufacture.