Wells – Above ground apparatus – Inner member anchor or seal with lateral port
Reexamination Certificate
2006-03-21
2006-03-21
Bagnell, David (Department: 3672)
Wells
Above ground apparatus
Inner member anchor or seal with lateral port
C166S075130, C166S075140, C166S088100, C166S077200, C166S344000, C166S368000
Reexamination Certificate
active
07013970
ABSTRACT:
A completion system comprises a christmas tree (10) mounted on a wellhead housing (11), a tubing hanger (12) landed in the tree or wellhead housing, the wellhead housing (11) being mounted on a casing string (100) and a tubing string (14) being suspended from the tubing hanger within the casing string; wherein, in use, the annulus defined between the tubing (14) and the casing (100) serves as a production bore. A second tubing string (98) is expanded into sealing engagement with the casing string (100) over at least a portion of their lengths. The annulus normally used to provide well service functions is thus eliminated. Well servicing is instead provided via the tubing string (14), which may be coiled tubing.
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Collie Graeme John
Hutchison David Ramsay
Kent Richard
Bagnell David
Collins G. M.
FMC Technologies Inc.
Query, Jr. Henry C.
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