The DA-II Unloader is designed as a highpressure
accessory for compression
set packers. This unloader is run above
the packer in the open position. After
the packer is run to setting depth, the
procedures required to set the packer
will automatically close the unloader. The
J-slot locks in both the open and closed
positions. With the packer set and the
unloader closed, well operations may
proceed.
When run above a compression set
packer, this unloader is opened by
rotating the tubing 1/4 turn and picking
up (standard is right-hand close,
right-hand open). After opening the
unloader, allow differential pressure to
equalize before releasing the packer
below.
Special Features
> Standard J-slot locks in open and
closed positions
> Standard J-slot is right-hand close,
right-hand open
> J-slot is available in various
configurations
accessory for compression
set packers. This unloader is run above
the packer in the open position. After
the packer is run to setting depth, the
procedures required to set the packer
will automatically close the unloader. The
J-slot locks in both the open and closed
positions. With the packer set and the
unloader closed, well operations may
proceed.
When run above a compression set
packer, this unloader is opened by
rotating the tubing 1/4 turn and picking
up (standard is right-hand close,
right-hand open). After opening the
unloader, allow differential pressure to
equalize before releasing the packer
below.
Special Features
> Standard J-slot locks in open and
closed positions
> Standard J-slot is right-hand close,
right-hand open
> J-slot is available in various
configurations
