Autonomous Detection Algorithm

Technical and Commercial
Feasibility of the Third
Generation LDAR (LDAR3)
Presented at 14th ISA LDAR Symposium
Education & Training
Conferences & Exhibits
New Orleans, Louisiana
May, 2014
Presenter: Jonathan Morris
CTO, Providence Photonics
• BS in Computer Science and Electrical Engineering from
Louisiana State University.
• Multiple patents in the field of autonomous gas leak
detection using IR imagery.
• CTO at Providence Photonics
• Traditional LDAR
– EPA Method 21
– Expensive and labor intensive
– $250,000 - $1,000,000 per year per facility (depending on component
– Certain components are not covered
– Complicated program and tedious field work
• Smart LDAR
– Optical gas imaging (IR cameras)
– Lower cost
– EPA promulgated Alternative Work Practice (AWP) rule in Dec.
– Adoption of AWP is severely limited because the AWP rule requires
Method 21 once every 3 quarters
• Next generation – LDAR3
– Proposed by Providence in 2006
– Unattended IR cameras with computer vision algorithm
capable of recognizing plume
– Fugitive emissions from leaks are a function of detection
limit and frequency of inspections
– Increased monitoring frequency allows early leak
detection, resulting in equal or better environmental
performance even at a higher leak definition
– Coverage for non-traditional LDAR components
• A technical analysis – Monte Carlo Simulation
Enabling Technology
• Advancements in optical gas imaging have made LDAR3
– Autonomous leak detection algorithms – The core
– ExxonMobil/Providence InteliRedTM
– Other enabling/enhancing techniques:
– Industrial enclosures for continuous operation in harsh
– Higher resolution imagers
– Better optics, continuous zoom, longer focal lengths
– Extended lifetime coolers
– Remote camera/gimbal/lens control
Autonomous Leak Detection Algorithm
• IntelliRedTM jointly developed by ExxonMobil and
• Autonomous remote gas plume detection
• Computer vision algorithm applied to infrared (IR)
video for continuous surveillance
• Industrial alarming interface (Modbus/TCP)
• Real-time streaming video enhancement
• The core enabling technology for LDAR3
Autonomous Leak Detection Algorithm
• Autonomous detection of 2.5 lb/hr Propane leak at 260 feet
Autonomous Detection Algorithm
• Autonomous detection of 1.25 lb/hr Propane leak at 220 feet
Autonomous Detection Algorithm
• Autonomous detection of large Natural Gas plume at 1200 feet
Field Testing InteliRedTM with
Point Detectors
• Point detector range:
0-100 % Lower
Explosion Limit (LEL)
• 2 lb/hour propane
• 18 inches from point
source detector
• 60 feet from Camera
Field Testing InteliRedTM with
Point Detectors
Field Testing InteliRedTM with Point and
Path Hydrocarbon Detectors
• Open Path Infrared detector
– Response: 0-5 LEL-m
• Infrared Combustible Gas Detector
– Response: 0-100% LEL
• LSU Fireman Training Facility – Marine
container prop
• Two leak points, each 4 lb/hour
• Camera located 215 feet from leak source
• Winds calm and variable
• Temperature 85F, early afternoon
Field Testing InteliRedTM with Point and
Path Hydrocarbon Detectors
Field Testing InteliRedTM with Point and
Path Hydrocarbon Detectors
• No response
from open path
• Achieved 5%
LEL from point
(1050 ppm)
Industrial Enclosures
Purged gimbal and camera enclosure
Vortex cooler
Remote pressure switch
Co-located visible camera
Full 360 degree pan capability
Tested to 60C ambient temperature
Single Ethernet port
ATEX certification
– EX II 2G Exp IIA T3
– Zones 1 or 2
• Class 1/Div 2 Groups B,C,D
Advanced Imagers and Optics
High resolution imager (640 x 512)
Continuous zoom lens (25mm to 100mm)
Optical doubler (50mm to 200mm)
Remote zoom and focus
Remote camera control
Extended life coolers
Extreme Industrial Applications
• Temperature extremes
– Prudhoe Bay, Alaska (down to -50C)
– Doha, Qatar (up to 60C)
• Industrial settings
– ATEX/Class 1
– Industrial interface (Modbus TCP)
Comparison with Smart LDAR
Smart LDAR
• Conditions at the time of
inspection may hinder
detection of a leak –
missed detection for 4-6
months on bi-monthly or
quarterly schedule
• Periodical inspection – a
leak may be undetected
for 2-3 months
• Manual inspection, high
operating cost, prone to
• Continuous detection – a
missed detection in one
moment will be detected
in a later moment when
the conditions become
• Continuous detection –
leak detected in near real
• Higher initial capital cost;
much less operating cost
• Advancements in technology make LDAR3
technically feasible
• The InteliRedTM technology is now commercially
• Cost savings vs. Method 21 and Smart LDAR
make LDAR3 economically feasible
• For environmental compliance, changes in
regulations will be required – ideally incorporated
in the Uniform Standard
• For non-regulatory applications (e.g., process
safety, proactive leak reduction for better LDAR
results), the InteliRedTM technology is ready NOW
Jonathan Morris
Providence Photonics, LLC
Baton Rouge, Louisiana
Technical and Commercial Feasibility of the Third
Generation LDAR (LDAR3) Technology
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