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1. (WO2017156106) MAGNETIC SLEEVE CONTROL VALVE FOR HIGH TEMPERATURE DRILLING APPLICATIONS

Pub. No.:    WO/2017/156106    International Application No.:    PCT/US2017/021329
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 09 00:59:59 CET 2017
IPC: E21B 34/06
F16K 31/06
F16K 1/34
Applicants: BAKER HUGHES, A GE COMPANY, LLC
Inventors: GREEN, Ryan Damont
TEGELER, Sebastian
PETER, Andreas
Title: MAGNETIC SLEEVE CONTROL VALVE FOR HIGH TEMPERATURE DRILLING APPLICATIONS
Abstract:
A control valve assembly includes a body having a mud flow passage provided with a mud flow inlet and a mud flow outlet, a magnetic sleeve slidingly mounted to the body, and a solenoid mounted to the body adjacent the magnetic sleeve. The solenoid being selectively activated to shift the magnetic sleeve between a first position covering the mud flow outlet and a second position exposing the mud flow outlet allowing a pulse of mud to flow through the mud flow passage