Condition Monitoring of Subsea Equipment for
Enhanced Equipment and Production Performance
Tomi Entaban
Sabah Oil & Gas Conference & Exhibition
26th May 2014
Image Area
Contents
 Introduction
– Multiphase Flowmeters
– Subsea Boosting
 FRIEND® Concept
 Monitoring Methodology
 Operational Experience
 FRIEND® Applications
 Summary
2
Contents
Introduction
Introduction – Multiphase Flowmeters


Well / production monitoring
Production optimization








Gas lift and ESP
Allocation metering
Flow Assurance
Immediate detection of
water/gas breakthrough
Calibration of reservoir models
Material balance
Mapping remaining reserves
Reservoir monitoring

Water/gas breakthrough
4
Introduction –Multiphase Flowmeters
Introduction – Multiphase Flowmeters
OneSubsea™ has a focused and proven
portfolio of subsea multiphase meters and
measurement systems:
 PhaseWatcher Subsea Multiphase and
Wet Gas Flow Meter
 Subsea sampling
 Additional measurements: sand burst
rate, H2S, scale identification, conductivity
 Proven, accurate flow measurement of
three-phase flow in all environments
5
Introduction –Multiphase Flowmeters
Introduction – Multiphase Flowmeters
 15,000 psi rated: tested, approved
and in operation
 3500 m / 11,500 ft water depth
rated
 205º C / 400º F rated
6
Introduction –Multiphase Flowmeters
Introduction – Subsea Boosting
 Enables production from remote
locations/deepwater fields
 Kick off dead wells
 Accelerate production and
extend production plateau
 Increase recovery by lowering
well head pressure
 Overcome static height and
header frictional losses
 Stabilize flow conditions in
flowlines
 Combine high and low pressure reservoir in single flowline
 Flexibility and ease of installation and operation
7
Introduction – Subsea Boosting
Introduction – Subsea Boosting
 Up to 300,000 bpd (~ 2000 m3/hr)
 Differential pressure 30 – 200 bar (~3000
psi)
 GVF up to 95% (0-100% Mechanical)
 Pressure rating up to 13,500psi
 Water depth to 3000m
 Shaft power rating 300 – 3000 kW
 Height ~ 5m
 Weight 7 – 20 metric tons
 < 4m2 foot print
8
Introduction – Subsea Boosting
Pump Section Motor Section
Introduction – Subsea Boosting
 HELICO-AXIAL Pump design
 Oil submerged electric motor
Impeller
Diffuser
 Integrated flow homogenizer
9
Introduction – Subsea Boosting
FRIEND® Concept
FRIEND® Concept - Objectives
 Facilitate 24/7 Remote Expert





Assistance
Increase Equipment availability
Improve Lifespan of Subsea
Equipment
Support Intervention Campaigns
Improve Communication and
Collaboration w/ Operators
Enhance production performance
11
FRIEND® Concept
FRIEND® Concept - Services
TM
24/7
Support
Portal with
online tools
Alarms and
notifications
Condition
Monitoring
Performance
Monitoring
12
Updated
documentation
Expert
reporting
Product
improvement
FRIEND® Concept
FRIEND® Concept - Data Collection
Web Server
Historian
Control System
Calculation Engine
Secure Access
Collaboration Workspace





24/7 Support
Alerts, Reports & Revised Documentation
Equipment Storage & Logistics
Maintenance Information
Live Process Displays & Trending
13
FRIEND® Concept
FRIEND® Concept - Monitored Equipment
Pumps & Subsea Process Systems
17 |12 more on the way
Multiphase Metering Systems
84 | 33 more on the way
Swivels & Marine Systems
2 | 2 more on the way
Subsea Trees & Production Systems
New service offering!
14
FRIEND® Concept - Statistics
The availability of the FRIEND service has been 99.82 % since the startup in 2006
FRIEND has proven to be an important tool in pursuing a preventive
maintenance philosophy and promoting collaboration with client personnel and
experts
15
FRIEND® Concept
FRIEND® Concept - Typical Monitored Parameters
 Vx Multiphase Meter
–Differential Pressure
–Pressure
–Temperature
–Nuclear Count Rates
16
FRIEND® Concept
FRIEND® Concept - Typical Monitored Parameters
 Pump Operation
–Electrical Parameters
–Suction Pressure
–Discharge Pressure
–Choke Position
 Barrier Fluid System
–Consumption
–Temperature & Pressure
–Tank Level
 Control Fluid System
–Consumption
–Function Pressures
–Valve Operations
 VSD
–Electrical Parameters
–Pump Speed
17
FRIEND® Concept
FRIEND® Concept – Live Pump Process Display
18
FRIEND® Concept
FRIEND® Concept – Site Dashboard
19
FRIEND® Concept
FRIEND® Concept – Vx Dashboard
20
FRIEND® Concept
FRIEND® Concept – Vx Solution Triangle
21
FRIEND® Concept
FRIEND® Concept – Vx OPI
22
FRIEND® Concept
Monitoring Methodology
Monitoring Methodology
Condition
Operation
 Establish Baseline
Signature
 Evaluate Possible
Failure Modes
 Categorize Failure
Modes by Severity
 Automate Detection
of Failure Modes
 Adapt Operation to
Individual Fields
 Highlight Critical
Aspects to Maintain
Pump Availability
 Practice 24/7
Proactive
Philosophy
Category A
Category B
Category C
Category A
Category B
Category C
Signature
Analysis
 Analyze Process
Transients
 Flow Assurance
Mitigation Actions
 Recommend
Changes to
Operational
Procedures
 Initiate Offline
Expert Studies
Best Practice
Predictive Models
24
Actions
One
Subsea
OneSubsea
Customer
Recommendations
FRIEND® Monitoring Methodology
Operational Experience
Operational Experience
 Excellent relationship with
client, OneSubsea always
updated.
 Planned maintenance/upgrade
of equipment done in minimum
time.
 Reduced operating and
maintenance costs.
 Optimal use of the equipment
(configuration).
26
Operational Experience
Operational Experience - Corrective Sequence
Observation
High variations in both
suction pressure and pump
power consumption
Action
Recommended the
Customer to open the
recirculation choke
27
Operational Experience
Operational Experience - Corrective Sequence
Observation
A drop in barrier pressure
during a flowline pressure
test caused negative seal
dP towards process
Action
Called the Operators, and
recommended bleeding off
the flowline pressure
28
Operational Experience
Operational Experience - Corrective Sequence
Observation
Diverging temperature
readings from two
neighbouring transmitters,
which if left unattended will
reach HH and trip the
pump in 2-3 months
Action
Inform Customer & Agree
on Solutions
29
Operational Experience
FRIEND® Applications
FRIEND® Applications - Trending Tools
31
FRIEND® Applications
FRIEND® Applications - Equipment Operational
Envelope
32
FRIEND® Applications
FRIEND® Applications - Operational Performance
Indicator (OPI)
 Monitoring operational health.
 Highlight information to identify
suboptimal conditions.
 Status indicators for continuous
operational improvement.
 Metrics to measure performance.
 Utilize expert experience.
33
FRIEND® Applications
FRIEND® Applications - Monthly Status Report /
Review
Status of the delivered equipment, as seen
from an equipment vendor’s perspective.
 Evaluation of condition and performance
 Recommendations / Areas of Concern
 Actual data from the field used as input
 List of ongoing work (reports, studies,
status of ongoing work orders, repair
jobs, site work)
 Commercial details (progress reporting
on open PO’s)
34
FRIEND® Applications
The Way Forward
 OneSubsea Alignment
–Knowledge Base System
–Equipment Reliability Classification
–Further Footprint Analysis
–Enhanced Condition Based Maintenance
 Cross-functional Decision-making
 Real-time Flow Assurance
Management
–Applications
–Offline Studies
–Reporting
35
Summary
Summary
Summary
 7 years experience with real-time
data
 We perform equipment integrity
monitoring and performance
evaluation
 Real-time data allows for effective
24/7 proactive service approach
 This integrated working methodology
has greatly improved the working
relationship with Customer
!
Main Goal: Increased Availability
of the Equipment
37
Summary
Thank You for Your Attention
Tomi.Entaban@OneSubsea.com