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1. (WO2014197152) JUNK BASKET WITH SELF CLEAN ASSEMBLY AND METHODS OF USING SAME

Pub. No.:    WO/2014/197152    International Application No.:    PCT/US2014/036817
Publication Date: Fri Dec 12 00:59:59 CET 2014 International Filing Date: Tue May 06 01:59:59 CEST 2014
IPC: E21B 31/08
E21B 37/02
E21B 21/12
Applicants: BAKER HUGHES INCORPORATED
XU, Ying Qing
Inventors: XU, Ying Qing
Title: JUNK BASKET WITH SELF CLEAN ASSEMBLY AND METHODS OF USING SAME
Abstract:
A downhole tool for removing debris from fluid flowing through the downhole tool comprises a screen member in sliding engagement with an inner wall surface of the tool. As the screen member becomes blocked, it moves from a first or initial position to a second or actuated position which causes a pressure change detectable at the surface of the wellbore. The pressure change causes the debris blocking fluid flow through the screen member to fall off the screen member thereby allowing an increase in fluid flow through the screen member. As a result, the screen member returns to its initial position and fluid again flows through the screen member for capturing by the screen member.