fishing

1. © 2011 BAKER HUGHES INCORPORATED. ALL RIGHTS RESERVED. TERMS AND CONDITIONS OF USE: BY ACCEPTING THIS DOCUMENT, THE RECIPIENT AGREES THAT THE DOCUMENT TOGETHER WITH ALL INFORMATION
INCLUDED THEREIN IS THE CONFIDENTIAL AND PROPRIETARY PROPERTY OF BAKER HUGHES INCORPORATED AND INCLUDES VALUABLE TRADE SECRETS AND/OR PROPRIETARY INFORMATION OF BAKER HUGHES
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Fishing Services Seminar
External Engaging Tools
Rev Feb 2013

2. Desired Features of Engaging Devices
• Releasable
• Full and positive circulation
• Full bore for wireline application
• Can transmit high tensile and torsional strength
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3. Bowen Series 150 Overshot
• Simple Design
• Very Common
• Wide range of sizes
• Able to release and reset
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4. Series 150 Overshot (Basket Grapple)
Basket Grapple Control
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5. Overshot Features
• Cutlip design of guide makes it possible
to pull fish off the low side into the
overshot
• Left-hand wicker grapple to allow easy
releasing capabilities
• Mill Control Packer allows circulation
through fish
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6. Series 150 Overshot
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Collar Stop
Basket
Grapple with
Short Catch
Stop
Basket
Grapple with
Long Catch
Stop

7. Series 150 Overshot (Spiral Grapple)
Top Sub
Type A
Packer
Spiral
Grapple
Guide
Bowl
Spiral Grapple
Control
Grapple Tong
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8. Overshot Jarring Assembly
• O.D. of overshot verses hole diameter
reduces risk of passing fish top
• Bumper jar allows for free travel,
giving a “soft touch” while getting over
fish top and bumping down
capabilities
• Oil Jar and Intensifier can provide
high upward impacts to free stuck fish
Spiral Drill
Collar (x6)
Oil Jar
Drillpipe
to surface
Accelerator
Intensifier
Bumper Jar
S150 Overshot
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9. Series 150 Overshot (Accessories)
High Pressure Packoff Assembly
• Converts standard overshot to a temporary or
permanent casing patch
• Allows for high pressure circulation to the fish to
remove blockage and spot releasing fluid
• High pressure packoffs are designed to withstand
two to three times the pressure for which standard
overshot packing is rated
• Compatible with overshot bowls and top subs
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10. Series 150 Overshot (Accessories)
Oversize Guide
Extension Sub
Mill Guide
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11. Series 150 Overshot (Accessories)
Wall Hook Guide
• Guides fish into Overshot in large I.D.
hole or in washout
• Used with bent joint or Knuckle Joint
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12. Wallhook Guide for Open Hole
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13. Knuckle Joint
• Used in oversized cased
holes or in open hole
• Allows for retrieval of lost
fish that otherwise would
be impossible to reach
• Full torque can be
transmitted at all times
during operation
• Normal jarring, bumping,
pulling, and rotation may
be fully utilized during
fishing
© 2010 Baker Hughes Incorporated. All Rights Reserved.
Series 150 Overshot (Accessories)
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14. Series 150 Overshot (Accessories)
Hollow Mill Container
• Permits milling and recovery in a single trip
• Unique taper design of inserts permits full removal
of flared or oversized top fish
• Mill inserts placement allows the fish to be dressed
before the grapple engages and gives the operator
a positive indication that the overshot will swallow
the fish
• Mill insert dressed with SUPERLOY crushed
carbide cutting material to ensure efficient milling
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15. Series 70 Overshot (Short Catch)
• Engage fish too short to be
engaged with conventional
catch overshot
• Large catch Range
• Readily Available
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16. Overshot Rules of Thumb
• Grapples will catch 1/32” over range and 3/32” under
nominal
• Always run a bumper sub with an overshot
• Run the larger controls when downsizing grapples.
• Always check your grapple in the bowl it is possible to
screw the grapple in to far which could keep overshot
from releasing
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17. Bulldog Overshot
• Smallest ratio of fish OD to overshot
OD
• Simple Design
• Cannot be released
• Run a Safety Joint
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18. Kelo Socket Overshot
• Slip is only moving part
• Slip rides in T-slot in tool and opens and
sets without rotation
• Optional oversize guide available to prevent
overshot from missing fish when washing
over
• Optional guides dressed with Superloy to
mill off flared ends or tops of tubing
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19. T-Dog/Mouse Trap / Flipper Dog (TMF) Overshot
• Solid body with no windows allows overshot
to be used in washover string for one trip
recovery
• Cage design allows unrestricted passage of
coupling through the tool joint and lets the
operator wash over several joints of pipe
• Dogs and slips are energized by springs that
place them in the catch position automatically
as they pass over and under a coupling
• Box x pin washpipe connections allow
overshot to be positioned anywhere in string
• Dressed with the T-Dog cage, the overshot
can be released
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20. Poor Boy Overshot
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• Run as a last resort or run
while waiting for
conventional fishing tools
• Usually built on the rig
• No Releasing Mechanism
• Cannot Pull a Heavy or
Stuck Fish
• Used to catch short loose
tubulars whose O.D. is not
known
Wire Catch
Poor Boy
Overshot
Dimple Catch
Poor Boy
Overshot

21. Box Tap
• Carburized wickers with high surface
hardness and proper carrying strength
• Available with right or left-handed
wickers or connections
• Various sizes, lengths, and
connections are available upon
request to handle specific types of
profiles
• Always run a bumper sub and safety
joint
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22. Drilling Safety Joint
• Designed to provide a means of
disconnecting from the bottom hole
assembly or a non-releasable engaging
tool without the use of wireline or a
manual back-off
• Released with left-hand rotation
• No shear Pins
• Backs out at 25% of the makeup Torque
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23. Drain Sub
• Prevents pulling a wet string
• Allows for circulation point
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24. Kick Sub With Plate
• Works with Cast Iron or
Aluminum shear disc
• Full tensile and torsional yield
• Hole in side used to move BHA
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Aluminum Disk
Hole

25. Circulation Control Joint
• Provides a circulation point if a plugged
fish is engaged
• Can drop plug and seal off hole after
disc has been ruptured
• Can drop plug and seal off the bottom
and be used as a kick sub
• Either plug can be retrieved on wireline
• Eliminates pulling a wet string
• Can be used as a drain sub or Kick Sub
• Minimum ID is large enough to run
wireline tools
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26. Circulation Control Joint
Short Fishing Neck Long Fishing Neck
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27. Pump-Out SUB
• Balanced Piston will not open
prematurely
• Allows for full flow
• Eliminates mud loss while pulling a
wet string
• Simple design and operation
• One time shift
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28. Dart Activated Circulation Sub – H14078
• Boosts annular velocity to effectively remove
debris
• Large circulation ports for high flow rates
• Closed - open – closed cycle
• Drop Dart to shift piston
• Must run Catcher below
• No set down weight required
• Good for deviated wells where drag may be an
issue with setting down weight

29. J-Type Circulation Swivel (JTCS) – H14146
• Boosts annular velocity to effectively remove
debris
• Isolates lower string from rotation while circulating
• Mechanically activated
• Unlimited cycles (closed – open)
• Adjustable shear ring
• Use in areas where casing size changes in order
to boost annular velocity
• Pump at high rates for extended periods

30. Lead Impression Block
• One piece construction with a cast lead head
• Can be reworked for multiple runs
• Available in many sizes for a wide range of
impression possibilities
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31. External Engaging Tools
Questions
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