Wells – Processes – Cleaning or unloading well
Reexamination Certificate
2007-03-13
2007-03-13
Dang, Hoang (Department: 3672)
Wells
Processes
Cleaning or unloading well
C166S099000
Reexamination Certificate
active
11036691
ABSTRACT:
A boot basket for retrieving debris from a well bore, and a method for retrieving debris from said well bore. The boot basket includes a mandrel having an internal wall and an external wall. The mandrel is connectable to a work string. The boot basket further includes a basket having an inner wall and an outer wall, wherein the basket is disposed on the mandrel such that an annular space exists between the inner wall of the basket and the external wall of the mandrel. A plurality of fingers is pivotally mounted and movable between a first open position and a second closed position. Each of the plurality of fingers blocks a portion of the annular space existing between the inner wall of the basket and the external wall of the mandrel when in the second closed position.
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Dang Hoang
M-I L.L.C.
Osha & Liang LLP
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