LEAK DETECTION ON NATURAL GAS BURIED PIPELINES AND …

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MARCH 2019 / IGU MEETING ABU DHABI LEAK DETECTION ON NATURAL GAS BURIED PIPELINES AND SMART TORQUEING OF BOLTED JOINTS IN GAS INSTALLATIONS JONATHAN MARTINEZ © Copyright Bureau Veritas

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Bureau veritasM A R C H 2 0 1 9 / I G U M E E T I N G A B U D H A B I
LEAK DETECTION ON NATURAL GAS
BURIED PIPELINES AND SMART
GAS INSTALLATIONS
JONATHAN MARTINEZ
© C o p y r i g h t B u r e a u Ve r i t a s
01
THE NEED – THE STAKES
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Safety
Communication / Reputation
Excavation costs in case of suspected leak generates heavy and expensive works
Unprecise leak location can result in wrong / too important excavation zone
Direct and indirect cost
Sometimes for Biogas emissions
Scheduling of the survey
Leak suspicion
Definition of the concerned portion(s) of pipeline (s) where leaks are suspected
Appointment for data collection
Scheduling of the survey
Appointment for data collection
Definition of the perimeter of the survey with milestone determination
02 Methodology and equipment used
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Reporting and deliverables
Collection of pipe’s material information
Collection of pipe’s length
Field campaign
Methane detection from the ground at the vertical of the pipeline
Gas analysis when Methane is detected
Data collection for detected leaks
List of deliverables
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Use of collected drawings showing the concerned pipeline(s)
Use of collected aerial pictures and GPS coordinates (if available)
Precise determination of the pipeline location
Use of a signal generator connected to cathodic protection markers
Pipe visual indicators + Use of collected data in case of cathodic protection not available
METHODOLOGY AND EQUIPMENT USED
Our 2-Inspectors team walks above the pipeline hand-carrying the dedicated Methane detector
Optional use of a smartphone (with adequate programme installed) to record measurement values
associated with time data and GPS coordinates
Alternative transportation of the detector
Case by case, drone transportation of the detector can be studied
METHODOLOGY AND EQUIPMENT USED
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Gas analysis
For preventing reporting “Biogas Emissions” instead of “Gas Leaks” from the pipeline, we analyse the detected gas composition
The transported Natural Gas contains typically 3 to 5 % of Ethane
When Ethane is detected into the emitted gas, this means it’s a leak from the pipe and not Biogas
METHODOLOGY AND EQUIPMENT USED
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Gas analyser demonstration
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When a Natural Gas leak is detected we collect all necessary pieces of information for allowing the
Transmission Operators to launch excavation works
Picture of the place where the Natural Gas emissions was detected
GPS coordinates
Maximum measured value in surface (in ppm.m) with “Laser Methane”
Maximum measured value in surface (in ppm) with “Gas analyser”
Presence of Ethane or not (= Natural gas or Biogas)
Picture and drawing reference
Leak reference transfer on the provided drawing showing the concerned pipeline
METHODOLOGY AND EQUIPMENT USED
Detection means
Additional deliverables
Leaks pictures
Detection means
Permanent backup
03 Conclusion
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Time has a direct impact on buried gas pipelines leak apparition and increasing
A well structured leak detection plan allows detecting leaks before they become significant
and dangerous
Leak Detection on buried pipelines is strategic as they can improve Safety, Health &
Environment, save product and save money
Bureau Veritas has the necessary experience, size and solidity to be a long term partner for
Transmission Operators
Bureau Veritas, Global QHSE company, is a world leader in LDAR, that has developed
advanced tools in order to provide a world class service with trained and experienced teams
worldwide
SMART TORQUEING OF BOLTED JOINTS IN GAS INSTALLATIONS Powered by the CUMULUS SMART TORQUE SYSTEM ™
I n t e g r a t e d D i g i t a l B o l t e d J o i n t M a n a g e m e n t S O L U T I O N P o w e r e d b y t h e C U M U L U S S m a r t T o r q u e S Y S T E M ™
THE NEED – THE STAKES
NEED
One of the most critical aspects during the plants construction, commissioning, and start-up after shutdown is the assembly and installation of bolted joints.
VALUES
Health, Safety and Environment issues also pose a great threat to companies reputation if not addressed properly.
CHALLENGE
The short availability of trained specialized technicians and lack of specific planning for bolted joint is reflected in increasing of the risk of accidents, with legal and economic consequences, start-up delay (commissioning of a new plant or restarting after turn around) and high costs.
SOLUTION
Bureau Veritas offers integrated solutions for services optimization management related to bolted joints leveraging on Maintenance Engineers know-how and field expertise.
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an innovating spin-out from Shelland
Have established in 2019 a partnership unifying their respective competences to provide their
common customers with an innovative solution in the field of Bolted Joints Management
2019 Industrial Internet-of-Things (IoT) Innovation of the Year
in building a database fully dedicated to torqueing.
This database is created and operated using a
specialized Flange Management Platform (software)
installed on a tablet PC. This database is linked to
the site flanges by means of QR code tags
000001
connected to the flange’s database records
containing all necessary pieces of information to
perform the right tightening (tightening torque,
torque sequence…)
Bluetooth which allows a direct reading of the
tightening torque on the tablet
The software + database ensure a direct control of
the tightening operations, guiding the maintenance
operator with a visual and intuitive color code till
reaching the expected range
ATEX tablet(s) - Windows
Data
Project management
DELIVERABLES &
BENEFITS
performance data
Delay between completion and QC
This data can aid in the selection of appropriate contractors and
provide performance benchmarking
The value of the data set will grow exponentially over time
0,5 0,75 1 1,5 2 3 4 6 8 10 12
A v g .
Contractor A Contractor B
A v g .
13-Mar 15-Mar
Bureau Veritas offers integrated solutions for digital bolted joints management optimisation, managing & supervising the entire process from beginning to end
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Leverage on maintenance engineers and field expertise
Digitalisation of the process
Monitoring the performance of execution