Wells – With eduction pump or plunger – Having sediment trap or deflector
Reexamination Certificate
2010-01-13
2011-11-15
Gay, Jennifer H (Department: 3676)
Wells
With eduction pump or plunger
Having sediment trap or deflector
C166S177600, C166S311000
Reexamination Certificate
active
08056622
ABSTRACT:
A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid continues through a screen and into the pump for eventual exhaust back into the water in the wellbore. A modular structure is envisioned to add debris carrying capacity. Various ways to energize the device are possible. Other tools run on slickline are described such as a cutter, a scraper and a shifting tool. A motor driven by an onboard power supply operates the circulation pump as well as a vibration device to agitate the debris and prevent coring into the debris if compacted. A shroud presents an alternate flow path if the housing lower end is embedded in debris.
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Baker Hughes Incorporated
Gay Jennifer H
Rosenblatt Steve
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