BRIDGING PLUG OF CEMENT BLOCK

The utility model relates to a cement head rotary handle type bumper pin mechanism for cementing wells during petroleum and natural gas drilling engineering. The utility model is characterized in that the bad effect of a beaten solid casing tube caused by well cementing failure can be overcome as lo...

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Bibliographische Detailangaben
Hauptverfasser:	CHENG GUANGGAO, ZENG XIANGRU
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 cement head rotary handle type bumper pin mechanism for cementing wells during petroleum and natural gas drilling engineering. The utility model is characterized in that the bad effect of a beaten solid casing tube caused by well cementing failure can be overcome as long as a control handle rotates at an angle of 90 DEG. The mechanism can be suitable for single-stage and multistage cement heads in various specifications.