Wells – Processes – Placing or shifting well part
Reexamination Certificate
2006-12-05
2006-12-05
Thompson, Kenneth (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S179000, C166S187000
Reexamination Certificate
active
07143832
ABSTRACT:
Annular packer (2) arranged on the outside of a production tubing (4) said packer comprises a core (12) comprising elastic polymer swelling by absorption of hydrocarbons. The core (12) may be surrounded by an external mantle of rubber (10), which is permeable to hydrocarbons and may be equipped with a reinforcement (11). The core (12) swells by absorption of hydrocarbons and the packer (2) expands thus in order to seal the annular space (5) between the production tubing (4) and the well wall (6).
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Halliburton Energy Service,s Inc.
Smith Marlin R.
Thompson Kenneth
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