|
HD TP and HD-TP/HD-TMP
Positioning Tools |
|
|
HD TP Positioning Tools
 |
Wireline Positioning Tools are designed to provide selective
location of the mandrel when there are two or more mandrels
installed in a well. The tool orients in the proper position, and
offsets the valve (or pulling tool) into position over the pocket for
setting or retrieving.
BENEFITS OF DESIGN PRINCIPLE
- Spring-loaded trigger key is guided to a stop in the mandrel's
positioning sleeve, which provides positive weight increase
to the operator.
- There is only one brass shear pin in the assembly which is
replaced easily after each wire line run. The pin can be replaced with the tool projecting from the lubricator.
- Large bypass flow area, both internal and external, reduces
swabbing effect during setting or pulling operations.
- The tool is locked in the in-line position, which prevents it
from accidentally kicking over and dragging on the tubing walls during insertion and withdrawal. The tool is locked in the offset position
for positive pocket locating when inserting or retrieving the valve.
OPERATING PRINCIPLE
Schematic 1 - The tool is run below the mandrel. Since the tool is
locked in a rigid position, it is designed not to kick over
accidentally.
Schematic 2 - The tool is raised until its key engages the sleeve
in the mandrel. Continued upward movement rotates the tool
until its key enters a slot. When the key reaches the top of the
slot, the operator is notified by a weight increase displayed on
the weight indicator. The tool is now properly oriented.
Schematic 3 - The pivot arm is designed to swing out and lock in
position due to additional pull. This action locates the valve or
pulling tool above the pocket or latch on the gas lift valve.
Schematic 4 - The mandrel is designed to guide the valve or
pulling tool to accurately land the valve or engage the latch on
the valve.
Schematic 5 - A straight, upward pull shears a pin when the key
reaches the top of the slot. This action allows the trigger to guide
freely out of the slot and through the tubing. When the pivot arm
reaches the small upper section of the mandrel, it is designed to
snapback and lock into its vertical running position, reducing
drag on the tool and valve as it is removed.
|
HD-TP/HD-TMP Positioning Tools
The HD Tools have identical running & pulling procedure as the standard tools.
|
|
