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STOPPLE® Train
Module #2 – STOPPLE® II & STOPPLE® Train Components
1930 1950 1970 1990 2010
1920 1940 1960 1980 2000
First in product development…
A C T I V E P A T E N T S
T O D A T E : 208+
2007 PIG-SIG® V passage indicator
2008 STOPPLE® Train system
2010 Model 420 Plug Setter
2011 Large-Diameter
STOPPLE® Plus system
1920 Company founded by T.D. Williamson, Sr.
1942 First pipeline cleaning tool
1950 First pipeline tapping machine
1956 First folding head STOPPLE® machine
1969 KALIPER® pig
1994 SHORTSTOPP® II plugging system
1950 1970 1990 2010
1940 1960 1980 2000
First in service...
1963 First subsea hot tap
1969 Hot Tapping & Plugging and Inline Inspection Services established
1974 TDW technician training program
1977 TDW Pipeline Services established
1979 First underwater plugging
1995 First 60”x90” folding STOPPLE® job (double with bypass)
2005 SmartPlug ® technology introduced
2008 Record-setting hot tap off coast of Australia
2011 SpirALL™ multi-dataset technology
2011 First STOPPLE® Train subsea application
STOPPLE® II Components
STOPPLE® Housing
and Hydraulic Cylinder
SANDWICH® Valve Control Bar of Hydraulic Cylinder
Control Bar Head
Primary Yoke (#1)
Primary Nose (#1)
STOPPLE® Fitting
STOPPLE® Train
Two Plugging Heads Are Better Than One
STOPPLE® Train Components
Secondary Yoke (#2) Pivot Arm
Pipeline Reinforcement
Pivot
Pipeline Reinforcement
The “Mechanical
Clamp” distributes
the forces created
by pressure acting
on the Secondary
plugging head.
Pipeline Reinforcement
Pivot
Pipeline Reinforcement
Pipeline Reinforcement
The “STOPPLE®
Fitting” distributes
the forces created
by pressure acting
on the Primary
plugging head.
Pipeline Reinforcement
STOPPLE® Train
Module #4 – The Principles Behind STOPPLE® Train
1. Insert STOPPLE® Train into Pressurized Pipe
Bleed Port
Equalization Port
Mechanical
Reinforcement
Clamp
Plugging Head #2 Secondary Seal
Leading Plugging Head
Plugging Head #1 Primary Seal
Trailing Plugging Head
How STOPPLE® Train Provides DB&B
How STOPPLE® Train Provides DB&B
2. Bleed Product From the Isolation Area
Differential Pressure Across Secondary
Plugging Head.
How STOPPLE® Train Provides DB&B
3. Bleed the pressure between the plugging heads.
Differential Pressure Across Primary Plugging Head.
STOPPLE® Train
Module #13 – Value Proposition
Ways to Achieve DB&B Could Be:
Two Valves
Valve & STOPPLE® II
STOPPLE® II & Isolation Plug
Tandem STOPPLE® II
STOPPLE® Train
PS
I
Blo
ck
#1
B
loc
k #
2
Bleed
Desire For Redundancy Is Driving Industry
Toward Double Block & Bleed
STOPPLE® Train provides DB&B Using
a single standard STOPPLE® fitting.
Value Proposition
DB&B SAFETY STOPPLE® Train Minimizes:
• Fitting Costs
• Welding Time & Costs
• Permits/Inspection/Quality Control
• Space in Pipe Rack
• Scaffolding, Cranes, etc.
• Excavation
• Potential Leak Paths
DB&B Can Be
Achieved Using
Tandem STOPPLE®
fittings.
Creating A “Zero Energy Zone”
Dramatically Increases The Chance Of First Time Sealing Success – No Detectable Seepage
Value Proposition
STOPPLE® Train
Module #7 – Application
Natural Gas – Seven Position Isolation
Piedmont Natural Gas –
Seven Position Isolation
20” 16” 10”
12”
8”
12” 8”
20”, 16” and
10” Pipelines
Feed 690 psi
Natural Gas To
A Major
Southern City
In The US
A Manifold
and Valve Box
Fabricated
Back in the
1950’s Needed
to Be Isolated
and Replaced
20” 16” 10”
12”
8”
12” 8”
A By-Pass Was
Installed In
Preparation
For Taking The
Manifold Out
Of Service
20” 10”
12”
8”
12” 8”
16”
20” 16” 10”
12”
8”
12” 8”
Seven (7)
STOPPLE®
Trains Were
Installed To
Isolate The
Manifold
20” 16” 10”
12”
8”
12” 8”
The
Isolated
Section
Was
Blown
Down
Leaving
Workable
But Not
Perfect
Seals
20” 16” 10”
12”
8”
12” 8”
This
Provided An
Excellent
Isolation of
The Manifold
Double
Block &
Bleed Was
Provided At
All 7
Isolations
20” 16” 10”
12”
8”
12” 8”
The
Manifold
Was Cut
Out And
Removed
20” 16” 10”
12”
8”
12” 8”
Flow Was
Maintained
Through The
By Pass
A New
Manifold
Was
Installed
20” 16” 10”
12”
8”
12” 8”
The
Manifold
Was Filled
With
Product
The
Pressure
Was
Equalized
The
STOPPLE®
Trains
Were
Retracted
The By Pass
Was
Dismantled
The System
Was Placed
Back Into
Operation
20” 16” 10”
12”
8”
12” 8”
20” 16” 10”
12”
8”
12” 8”
SUMMARY
• No Service Interruption
• A Few Hundred Feet of
Pipeline was Evacuated
Versus Many Many Miles
• 1 Excellent Primary Seal
• 6 Workable Primary Seals
• Unknown Secondary
Seals
• Double Block & Bleed
• 7 Excellent Secondary
Seals
• Safety of DB&B
• Efficiency Of A Single
Insertion At All 7
Locations
STOPPLE® Train
Module #14 – Fleet Build Out
- 2008 – 6”
- 2009 – 4”, 6”, 8”, 10”, 12”
- 2010 – 4”, 6”, 8”, 10”, 12”, 16”
- 2011 – 4”, 6”, 8”, 10”, 12”, 16”, 24”
- 2012 – 4”, 6”, 8”, 10”, 12”, 16”, 20”, 24”, 30”
- 2013 – 4”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20”, 20” HW, 21”, 24”, 30”
- 2014 – 4”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20”, 20” HW, 21”, 22”, 24”, 26”, 28”, 30”, 34” , 36”
Additional DB&B STOPPLE® Trains Designed (but not built) in 2014
In Production
Historical Growth of Size Offerings
The range of DB&B STOPPLE® Train sizes available
has grown since its inception in 2008.
Historical STOPPLE® Train Insertions
Pipe
Size
Wall
Thickness
Range
2008 2009 2010 2011 2012 2013 2014 2015Program
To Date
2014/2015
Conversion
Rate
Fleet
Size
4" 0.156"-0.337" 2 3 3 3 18 6 35 27% 14
6" 0.188"-0.432" 1 7 15 29 47 15 114 33% 18
8" 0.188"-0.500" 8 2 15 45 26 49 18 163 27% 18
10" 0.188"-0.594" 4 8 9 18 46 61 16 162 39% 18
12" 0.180"-0.688" 2 5 11 41 95 80 56 290 49% 22
14" 0.250"-0.625" 1 1 2% 4
16" 0.250"-0.625" 11 13 81 63 86 19 273 45% 18
18" 0.250"-0.625" 6 2 1 9 9% 4
20" 0.250"-0.625" 23 20 33 5 81 29% 8
21" 0.236"-0.472" 3
22" 0.250"-0.625" 2 2 7% 2
24" 0.250"-0.750" 8 22 10 17 4 61 23% 12
26" 0.250"-0.750" 6 6 33%
28"
30" 0.250"-0.750" 8 14 13 2 37 20% 11
32"
34"
36" 0.250"-0.750" 1 1 4% 2
TOTAL 1 16 26 66 256 312 408 150 1235 33%
STOPPLE® Train Insertions
Historical STOPPLE® Train Insertions
Page 38
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