Downhole injection system

A system for the downhole injection of chemical into a well through capillary tubing using a surface chemical pump includes downhole injection valve. The downhole injection valve includes an upstream and a downstream check valve connected in series. The upstream check valve has an adjustable spring...

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Bibliographische Detailangaben

Hauptverfasser:	Welch, Joe, Rhodes, R
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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