the spe foundation through member donations and a ... · drilling vibration management lecturer’s...
TRANSCRIPT
Primary funding is provided by
The SPE Foundation through member donations
and a contribution from Offshore Europe
The Society is grateful to those companies that allow their
professionals to serve as lecturers
Additional support provided by AIME
Society of Petroleum Engineers
Distinguished Lecturer Program www.spe.org/dl 1
Drilling Vibration Management
Lecturer’s Name: Alan Clarke, SPE Company Name: National Oilwell Varco,
Director of Advanced Drilling Solutions
Society of Petroleum Engineers
Distinguished Lecturer Program www.spe.org/dl
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3
Agenda
• Impact on our Industry
• Overview of Drilling Dysfunctions
• Vibration 101
• Industry solutions
• What about my rig?
• Vibration Event, and Solution
• Conclusion
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Industry Impact
Distribution of Causes for Major Dull Conditions
Normal
Vibration
Hydrualics
Structural
Vibration Related
25.3%
Hydraulics
2.4%
Normal Vibration Structural
71.1% 25.3% 7.2%
Hydraulics
Structural
Vibration
Normal
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Industry Impact
6
Industry Impact
7
Drilling Dysfunctions
Categories
• On bottom events
• Tagging bottom procedures
• Reaming activity
• Directional impact
• Hole quality
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On and Off Bottom Drilling Dysfunctions
On Bottom
Vibration
increase
Impact damage.
Increased
vibration during
connection
Torque Spike
Bit Torsional / Lateral
Picked Up
Slightly
Periodic
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Reaming Activity & Directional Impact 6 m
inute
s
10
Hole Quality
Animation is based on actual downhole data.
* Used with permission from National Oilwell Varco
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Drilling Dysfunctions
Why do we care?
• Safety
• Failed tools
• Poor performance
• High costs
• Learning
0
2000
4000
6000
8000
10000
0
50
100
150
200
Well 1 Well 2 Well 3 Well 4 Well 5 Well 6 Well 7
Inte
rval (f
t)
Ho
urs
8.5 " Section Comparison
Hours
Interval ft
well 1 well 2 well 3
$112k $114k
$131k
Cost Per Interval
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Vibration 101
Primary modes
• Lateral
• Axial
• Torsional
Mode Coupling
• Combined motion of 2 or
more primary modes
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Vibration 101
* Used with permission from Schlumberger * Used with permission from National Oilwell Varco
Animation is based on actual downhole data.
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Industry Solutions
Axial Map Torsional Map Lateral Map
Predictive harmonic bottom hole assembly
modeling
Weig
ht
on B
it
50
250 RPM
Weig
ht
on B
it
50
250 RPM
Weig
ht
on B
it
50
250 RPM
Industry Solutions
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Rotating
Weight / RPM / ROP
Weig
ht
Rotary Speed
Sliding Optimal
Parameter
Zones
Late
ral
Vib
ration
Dynam
ic
Energ
y
Delta
RP
M
WOB (klbf) RPM/10 ROP (m/hr) RMS lat (g) Ave Max Lat (g) % 0rpm TVI SD (g)
Full Run 3 13.1 11.9 23.8 1.4 5.23 8.26 1.71
Oligocene 13.1 12.6 20 0.99 4.03 3.79 1.18
Eocene 15.8 11.7 22 1.43 5.29 6.19 1.72
Paleocene 11.8 11.8 25.4 1.42 5.29 10 1.75
Maastrichtian 7.3 12.2 23.2 1.42 5.87 6.84 1.83
0
5
10
15
20
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Run 3 Formation Intervals
Lateral Torsional
Industry Solutions
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What About My Rig?
Room for Improvement
• Gather data
• Overview
• Look for specifics
• Solve for the easiest
• Test the solution
• Keep learning
Vibration Event and Solution
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Increase energy available
to the drillstring
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Conclusion
Why was ROP
so poor?
Poor bit selection?
High Coupled Vibration is driver
for ROP loss
Formation effect for Lateral
Vibration
Torsional Vibration coupled to Lat
Vibration
WOB dependency evident
Surface paramaters must vary
per vibration zone
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Acknowledgements
• Society of Petroleum Engineers,
Distinguished Lecturers Program
• National Oilwell Varco
• Schlumberger
• The many industry professionals that
continue the pursuit of knowledge
Alan Clarke, Director of Advanced Drilling Solutions, National Oilwell Varco