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The Wireline Releasable Collet Type Bulldog Spear Wireline Fishing Tool
I. Overview:
The Wireline Releasable Collet Type Bulldog Spear is used to fish
the wells with inner holes.
Wireline Releasable Collet Type Bulldog Spear is composed of an
upper joint, a mandrel, an auxiliary spring seat, an outer
cylinder, a cone and slips. The slip is sleeved on the cone, and
the slip is moved up and down along the cone surface of the cone
through the compression and expansion of the spring, and the
diameter of the slip is changed, thereby changing the fishing range
and fishing fish with different inner hole diameter ranges. After
the salvage meets obstacles, you can slam the pin downwards, throw
off the fish, and raise the salvage spear.
II. General Technical Parameters
Actual O.D. | Fishing Neck | Top Connection | To Catch Diameters |
1.75" | 1.375" | SR QLS, HDQRJ,BLQJ | 1.000″-1.500″ |
2.220" | 1.75" | SR QLS, HDQRJ,BLQJ | 1.125″-2.125″ |
2.720" | 2.313" | SR QLS, HDQRJ,BLQJ | 1.625″-2.500″ |
3.600" | 2.313" | SR QLS, HDQRJ,BLQJ | 2.250″-3.500″ |
4.500" | 2.813" | SR QLS, HDQRJ,BLQJ | 3.325"-4.375" |
4.500" | 2.813" | SR QLS, HDQRJ,BLQJ | 4.000"-5.625" |
Note. More customized parts are available upon request.
III. Structural features and use:
1. Wireline Releasable Collet Type Bulldog Spear has different
sizes and specifications. To catch fish with different inner hole
diameters, you only need to replace slips and cones of different
specifications. When replacing slips and cones, clamp the
self-releasing slip fishing spear upside down on a vise, unscrew
the outer cylinder, and then directly remove the slips and cones
for replacement. Its structure is simple and easy to use.
2. The method of using the self-released slip fishing spear. When
fishing down the well, the slip moves on the cone surface of the
cone to change the diameter of the slip, thereby fishing the fish
with different bore diameters.
3. When pulling out, by cutting the shear pin, under the force of
the main spring, the outer cylinder drives the slips to move
upward, and the fishing spear is raised.
4. Wireline Releasable Collet Type Bulldog Spear needs to reinstall
the pin every time the operation is completed. When installing the
pin, use the equipped pin installation tool.
IV, matters needing attention:
When replacing the pin, the hexagon socket flat-end set screw must
be removed to facilitate the use of the pin assembly tool.