Wells – Processes – Placing or shifting well part
Reexamination Certificate
2007-09-04
2007-09-04
Bagnell, David (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S133000, C166S179000, C166S188000, C166S191000
Reexamination Certificate
active
10532515
ABSTRACT:
The invention concerns an external well packer (4, 4′, 4″) for a pipe string (2), and also a method of leading at least one line (18) seamlessly past at least one packer (4, 4′, 4″) along the pipe string (2). What is characteristic of the packer (4, 4′, 4″) is that it consists of a continuous inner packer ring (8) and a separate and continuous outer packer ring (10), which in the operating position encloses the inner packer ring (8) in a pressure tight manner. The fitting surface of at least one of the packer rings (8, 10) is provided with at least one through-going line slot (16, 16′), which in the operating position encloses a line (18) in a pressure tight manner. This allows continuous lines (18) to be stretched out past several such packers (4, 4′, 4″).
REFERENCES:
patent: 4615389 (1986-10-01), Neely et al.
patent: 5810083 (1998-09-01), Kilgore
patent: 6173788 (2001-01-01), Lembcke et al.
patent: 6220362 (2001-04-01), Roth et al.
patent: 6325144 (2001-12-01), Turley et al.
patent: 6367845 (2002-04-01), Otten et al.
patent: 2002/0074119 (2002-06-01), Bixenman et al.
Dybevik Arthur
Moen Terje
Andrus Sceales Starke & Sawall LLP
Bagnell David
Collins Giovanna M
Reslink AS
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