Anti-rotation anchoring structure beneficial to drilling

Anti-rotation anchoring structure beneficial to drilling

The invention relates to the field of petroleum industry oil and gas production devices, in particular to an anti-rotation anchoring structure beneficial to drilling. The structure is used for a pressure bridge plug and comprises clips, clamping rings and a cone back ring. The eight clips are evenly...

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Hauptverfasser: WANG JIAN, ZOU GANG, ZHOU XIN, LI YINGHU, YANG XIAOCHENG
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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creator WANG JIAN
ZOU GANG
ZHOU XIN
LI YINGHU
YANG XIAOCHENG
description The invention relates to the field of petroleum industry oil and gas production devices, in particular to an anti-rotation anchoring structure beneficial to drilling. The structure is used for a pressure bridge plug and comprises clips, clamping rings and a cone back ring. The eight clips are evenly distributed in a sleeve circumferentially. Eight dovetail grooves matched with the eight clips are evenly formed in the cone back ring circumferentially. The eight clips are fastened and assembled by the two clamping rings which are arranged in the sleeve circumferentially in parallel. The structure has the advantages that the clips and the cone back ring in a composite bridge plug anchoring structure are optimized, the drilling and milling beneficial performance is improved after a bridge plug setting perforation hole is fractured, rotating prevention performance during drilling and milling is improved, and the anchoring and pressure bearing capacity of the clips is improved.
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subjects 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
title Anti-rotation anchoring structure beneficial to drilling
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