Wells – Processes – Assembling well part
Reexamination Certificate
2011-08-30
2011-08-30
Dang, Hoang (Department: 3672)
Wells
Processes
Assembling well part
C166S207000, C166S382000
Reexamination Certificate
active
08006770
ABSTRACT:
An expandable casing with enhanced collapse resistance and sealing capability. An expandable tubular for use in a subterranean well includes multiple recesses extending into a wall of the tubular, with the recesses being longitudinally spaced apart along the wall. A method of expanding tubulars in a subterranean well includes the steps of: expanding a tubular in the well, the tubular including multiple recesses extending into a wall of the tubular; and after the expanding step, allowing the wall of the tubular to retract radially inward more at each of the recesses than between the recesses.
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Dang Hoang
Halliburton Energy Service,s Inc.
Smith Marlin R.
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