The Model C-1 Tandem Tension Packer is a tension-set ... · Shear screws secure the setting...
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The Model C-1 Tandem Tension Packer is a tension-set retrievable packer without slips. The packer is small, reasonably priced and very effective for wells where set-down weight is unavailable. It is used as an isolation packer in multiple-zone, single string water flood installations. The C-1 can be attained in sizes from 4-1/2 in. to 9-5/8 in., and is rated to 5,000 psi from below at temperatures up to 275°F. BENEFITS AND CHARACTERISTICS ? Compact, simple, economical packer for zone isolation ? Built-in unloader allowing fluid to bypass packing element system ? Large bore available for 7” ? Can be shearpinned in unjayed position, allowing the packer to be set without tubing rotation ? Electroless nickel plated for corrosion resistence APPLICATIONS ? Multiple-zone, single-string waterflood installations ? Wells where set-down weight is not available ? Run in tandem above any packer against which an upstrain can be pulled . OPERATION Shear screws secure the setting mechanism in either the jayed or unjayed position. If run in the jayed position, apply set-down weight to part the shear screws. Then, rotate the tubing to the left to get 1/8 turn at the tool. If run in unjayed position, the shear screws can be parted by either set-down weight or tension. With the mechanism in the unjayed position, apply enough tension to maintain 6,000 to 12,000 lb. pack-off Slack off on the tubing string to withdraw the applied tension and to equalize pressure across the packer. Then, turn rightwards 1/8 rotation at the tool. The packer is now in the retrieving position for removal from the well. MODEL “C-1” TANDEM TENSION PACKER
Transcript of The Model C-1 Tandem Tension Packer is a tension-set ... · Shear screws secure the setting...
The Model C-1 Tandem Tension Packer is a tension-set retrievable
packer without slips.
The packer is small, reasonably priced and very effective for wells
where set-down weight is unavailable. It is used as an isolation
packer in multiple-zone, single string water flood installations. The
C-1 can be attained in sizes from 4-1/2 in. to 9-5/8 in., and is rated to
5,000 psi from below at temperatures up to 275°F.
BENEFITS AND CHARACTERISTICS
? Compact, simple, economical packer for zone isolation
? Built-in unloader allowing fluid to bypass packing element system
? Large bore available for 7”
? Can be shearpinned in unjayed position, allowing the packer to
be set without tubing rotation
? Electroless nickel plated for corrosion resistence
APPLICATIONS
? Multiple-zone, single-string waterflood installations
? Wells where set-down weight is not available
? Run in tandem above any packer against which an upstrain can be
pulled
.
OPERATION
Shear screws secure the setting mechanism in either the jayed or
unjayed position. If run in the jayed position, apply set-down weight
to part the shear screws. Then, rotate the tubing to the left to get 1/8
turn at the tool. If run in unjayed position, the shear screws can be
parted by either set-down weight or tension. With the mechanism in
the unjayed position, apply enough tension to maintain 6,000 to
12,000 lb. pack-off
Slack off on the tubing string to withdraw the applied tension and to
equalize pressure across the packer. Then, turn rightwards 1/8
rotation at the tool. The packer is now in the retrieving position for
removal from the well.
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“C-1” Packer Specification Guide
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