inspection needs supporting increased well integrity
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Inspection Needs Supporting Increased Well Integrity
Dr.Robello Samuel
Halliburton Fellow
Robello.Samuel@Halliburton.com
NASA In-Space Inspection Technology Workshop
(ISIW 2014) Johnson Space Center, Houston
© 2014 HALLIBURTON. ALL RIGHTS RESERVED. 2
In-EarthIn-Space
Context
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Exploration Drilling
© 2014 HALLIBURTON. ALL RIGHTS RESERVED. 44© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
© 2014 HALLIBURTON. ALL RIGHTS RESERVED. 5
Oil Well Integrity
• Well Integrity: NORSOK D-010 and API Std 65 (1 & 2)
• Well Reliability as KPI
API RP 65-2: “Barriers contribute to total systemreliability; total system reliability is the probability ofbarrier success, or one minus the probability that allbarriers to uncontrolled flow along a particular path willfail simultaneously.”
“Application of technical, operational and organizational
solutions to reduce the risk of uncontrolled release offormation fluids throughout the entire life cycle of thewell.”
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Wellbore IntegrityWellbore Integrity
Casing IntegrityCasing Integrity
Cement SheaathIntegrity
Cement SheaathIntegrity
Annular IntegrityAnnular Integrity
Junction IntegrityJunction Integrity
Data IntegrityData Integrity
6
Total Well Integrity Ecosystem
Engineering
+ Inspection
Structural Integrity
Structural Integrity
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Challenge
Surface
Sub-surface
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PrimaryMechanical
• Barriers SecondaryOperational
Well barriers schematic
for Drilling PhaseSource: NORSOK D-10 lit-1
primary barrier is the fluid column in the well
secondary barrier is the last set
Well Integrity - Basics
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How this is done?
Interconnect• Monitor• Inspect• Engineering• Intelligent
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Barrier performance change with time
Barrier Design
(Casing, Casing
joint, Liner Hanger)
Simulation -1
Design & Run
Changing Well Conditions
Stress
Levels
Reliability
Results
Simulation -2
Accelerated
Test
How this is done?
Inspection
Results
Well Integrity issues
BarrierAnalysis
3
2
1
4
Source: Bibek Das and Robello Samuel
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Simulation Design
Casing Wear
model
[API TR 5C3]
Casing Wear due
to rotating
drillstring
[period of rotation]
Reduced Casing
strength
[tensile, collapse,
burst]Test for Failure
Tensile
Stress model
[API TR 5C3]
Burst model
[API TR
5C3]
Collapse
model
[API TR
5C3]
Operations:
Internal & External
Pressure
[stress]
next
period o
f ro
tation
Representative
Failure ModelAccelerated Test
next
occurr
ence o
f casin
g p
ressure
model
applicability
Reliability Model
Source: Bibek Das and Robello Samuel
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depth
Reliability Mathematics
)(1)( tFtR −=
∫=t
dssftF0
)()(
An acceleration factor is calculated as compared to the use conditions
tu = AF x ts
( ) ( )AF
tfAF
tf su1)( =
Source: API RP 2A
Source: Bibek Das and Robello Samuel
© 2014 HALLIBURTON. ALL RIGHTS RESERVED. 1313© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
Engineering Health diagnostic System
If the triaxial
stress exceeds
the yield
strength, a
yield failure is
indicated.
The triaxial
safety factor is
the ratio of the
material’s yield
strength to the
triaxial stress.
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Anomaly Diagnostic
• Extend inspection to potential barrier failures and maintenance schedule
Engineering, operational and organizational solutions to reduce risk of uncontrolled release of formation fluids throughout the life cycle of a well
Well Integrity - Inspection
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Real Time Integrity Inspection
Real Time Verification
DecisionSpace®InSite® Direct
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Identify Real Time Asset Inspection
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Risk Analysis
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Quantum Data
Monitoring
Engineering
DataAnalytics
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Erosion Corrosion Collapse Burst
Max
Average
Max
Min
Max
Min
Max
Min
actualTrend
Inspection Dash Board
Source: SPE 164230
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Comprehensive WIM System
Full Integrated Analysis
Engineering Inspection Analytice
Erosion Corrosion Collapse Burst
Max
Average
Max
Min
Max
Min
Max
Min
actualTrend
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How can we use the “quantum data”?
Inspection needs
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How are we going to use the “quantum data”?
Well Integrity Summarization =
Data Informed + Engineering Guided
Inspection needs
i
n
i
m
j
jref∑ ∏= =
=
1 1
. πλλ
∏=
=b
k
kwell RR1
ψ
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Winning Work In The Exploration Race
Dr.Robello Samuel
Halliburton Fellow
Robello.Samuel@Halliburton.com
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