METHOD AND APPARATUS FOR RESTRICTING FLUID FLOW IN A DOWNHOLE TOOL

A ball seat valve employed in a downhole tool string includes a split-ring baffle that is configured to radially expand and to radially contract to catch a dropped ball.

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Bibliographische Detailangaben
1. Verfasser:	MERRON, Matthew James
Format:	Patent
Sprache:	dan ; 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:	A ball seat valve employed in a downhole tool string includes a split-ring baffle that is configured to radially expand and to radially contract to catch a dropped ball.