09631472 cites 18 patents.

A well pump assembly includes rotary pump and a submersible motor. A shroud surrounds the pump intake and the motor. The shroud has an open upper end in fluid communication with the pump intake. A tubular member of smaller diameter is secured to and extends downward from a lower end of the shroud. The tubular member may have an open lower end for drawing well fluid along a lower flow path up the tubular member to the pump intake. An upper flow path at the upper end of the shroud may have a minimum flow area that is smaller than a minimum flow area of the lower flow path. The tubular member has a smaller outer diameter than an outer diameter of the shroud. The tubular member may have a closed lower end to define a debris collection chamber with a drain valve.

Title
Inverted shroud for submersible well pump
Application Number
14/490264
Publication Number
9631472 (B2)
Application Date
September 18, 2014
Publication Date
April 25, 2017
Inventor
Brent D Storts
Piedmont
OK, US
Jeffrey S Bridges
Edmond
OK, US
Leslie C Reid
Coweta
OK, US
Agent
James E Bradley
Bracewell
Assignee
Baker Hughes Incorporated
TX, US
IPC
E21B 43/12
E21B 43/38
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