Para-Bow Cementing Tool

Pressure Pumping
Para-Bow Cementing Tool
Maximize balance plug cementing performance
State-of-the-art cementing tool
Features and benefits
„„Less WOC
„„Better
„„Less
time
cementing jobs
Mud
Mud
Cement
Cement
Cement
mud-conditioning time
„„One-connection
„„Fully
Mud
hookup
drillable with PDC bit
„„Simple
„„Single
construction
ball-drop operation
Ideal
Potential without Para-Bow tool
Balanced plug cementing
Ideal vs typical plug placements
Our Baker Hughes Para-Bow tool helps achieve
balanced plug cementing that minimizes the effects
that inaccurate cement plug placements can have on
the success of your wells.
Cement and drilling mud often exhibit major
differences in their specific gravity. This differential in
specific gravity will often result in the heavier cement
swapping places with the lighter drilling mud. This
change in the placement of cement can create a variety
of problems.
™
The Para-Bow tool gets its name from the two
umbrella-shaped bows that extend in opposite
directions in the wellbore to form a temporary plug.
When cement is pumped directly above the positioned
Para-Bow tool, the success of the cement bond can be
improved by as much as 50%—significantly enhancing
wellbore integrity and minimizing environmental risks.
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With Para-Bow tool
Compounding these problems is the chemical reaction
that can take place between the cement and the
drilling fluid. If the fluids displace one another and
mix together, the resulting fluid becomes a mud and
cement mixture that may fail to offer the bonding
characteristics required. A variety of fluid plugs have
been tested over the years with mixed success. Our
Para-Bow tool is the most cost-effective solution for
achieving balanced plug cementing.
Easy to use; saves rig time
Set-up and running procedures
„„Check
your drillpipe crossover
„„Unpack
„„Install
„„Run
Para-Bow tool
tool on the strip end
string to desired depth
„„Condition
„„Drop
„„Set
ball
and extrude Para-Bow tool
„„Place
„„Pull
mud
cement slurry
out of hole
Technical data
„„Max. OD tool: 4 in. (105 mm)
„„Min. ID string: 21/4
in. (57 mm)
„„Length: 79 in. (2013 mm)
„„Weight: 99 lbm (45 kg)
Break circulation
Activate Para-Bow device
Set Para-Bow tool
Pump cement
„„Extrusion pressure: 580 psi (40 bar)
„„Connection: 27/8-in. EUE
Simple activation and a flexible design
The single ball-drop activation makes it a simple, trouble-free procedure. After the optimum tool
depth is reached, the ball is dropped and lands in the activator piston. Pressure is then applied
to move the activator piston to close the upper circulation ports.
„„Diverter tool included
Once the upper circulation ports are closed, the ball is pushed through the activator piston,
allowing the fluid to be pumped against the extrusion piston to push out the Para-Bow tool.
The Para-Bow tool is designed for use in all cased or openhole sizes, from 6 to 20 in (15 to 50 cm).
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2
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5
6
7
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Para-Bow extrusion tool
1. 27/8-in. EUE threads
2. Outer mandrel
3. Activator piston
4. Upper circulation port
5. Extrusion piston
6. Para-Bow device
7. Lower circulation port
8. Lower piston
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Incorporated and its affiliates do not make any warranties or representations of any kind regarding the information and disclaim all express and implied warranties
or representations to the fullest extent permissible by law, including those of merchantability, fitness for a particular purpose or use, title, non-infringement, accuracy,
correctness or completeness of the information provided herein. All information is furnished “as is” and without any license to distribute. The user agrees to assume all
liabilities related to the use of or reliance on such information. BAKER HUGHES INCORPORATED AND ITS AFFILIATES SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT,
SPECIAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES FROM ANY CAUSE WHATSOEVER INCLUDING BUT NOT LIMITED TO ITS NEGLIGENCE.
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