Wells – Processes – Placing or shifting well part
Reexamination Certificate
2006-03-07
2006-03-07
Walker, Zakiya (Department: 3676)
Wells
Processes
Placing or shifting well part
C166S207000
Reexamination Certificate
active
07007760
ABSTRACT:
There is provided a method of radially expanding a tubular element extending into a wellbore, the tubular element having a first section to be expanded to a first diameter and a second section to be expanded to a second diameter, the first diameter being larger than the second diameter. The method involves arranging an expander in the wellbore, the expander including a first expander member and a second expander member, wherein the first member has a larger outer diameter than the second member, said members being releasably interconnected. The expander is moved through the first tubular section thereby expanding the first tubular section to the first diameter, whereafter the second expander member is released from the first expander member. The second expander member is then moved through the second tubular section so as to expand the latter to the second diameter.
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patent: 1745873 (1992-07-01), None
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International Search Report dated Oct. 23, 2002.
Shell Oil Company
Walker Zakiya
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