Invention Grant
- Patent Title: Downhole material retention apparatus
- Patent Title (中): 井下物料保留装置
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Application No.: US12120764Application Date: 2008-05-15
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Publication No.: US08474522B2Publication Date: 2013-07-02
- Inventor: Gerald D. Lynde , John P. Davis
- Applicant: Gerald D. Lynde , John P. Davis
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agent Steve Rosenblatt
- Main IPC: E21B31/08
- IPC: E21B31/08

Abstract:
A debris removal device features structural support from an exterior housing that allows more space for debris collection. The debris enters the collection volume from the top to eliminate debris from having to go through a valve. The screen in the device is disposed internally to protect it during handling and running. A variety of external flow diverters are used to direct debris laden fluid into the tool and to keep debris out of an annular space around the tool that could interfere with its removal. The diverters can be actuated by relative movement in the tool or applied pressure to a piston which can inflate a sleeve or orient or misalign paths through brushes for selective bypassing of fluid exterior to the tool.
Public/Granted literature
- US20090283330A1 Downhole Material Retention Apparatus Public/Granted day:2009-11-19
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