Dynegy Midstream Services, L.P. Experience in Methane Emissions Mitigation Processor’s Transfer...
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Transcript of Dynegy Midstream Services, L.P. Experience in Methane Emissions Mitigation Processor’s Transfer...
![Page 1: Dynegy Midstream Services, L.P. Experience in Methane Emissions Mitigation Processor’s Transfer Workshop April 22, 2005 Oklahoma City, Oklahoma.](https://reader035.fdocuments.in/reader035/viewer/2022062718/56649e685503460f94b65284/html5/thumbnails/1.jpg)
Dynegy Midstream Services, L.P.Experience in Methane Emissions Mitigation
Processor’s Transfer WorkshopApril 22, 2005Oklahoma City , Oklahoma
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Outline
Background
Gas Processing Plant’s study
Pipeline Leak Study
Monument Gas Plant
Current Plans
Future Plans
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Background
Dynegy Midstream Services, L.P.
Corporate vs. Field staff
Number of DMS facilities
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Gas Plant’s Study
Two DMS facilities in study
Cost was $ 30 K
Amount methane saved = 100 MMSCF/yr
($700K @ $7/MSCF)
Savings Realized within 18 Months – Largest
Cost-Effective Leaks Repaired
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Chico Gas Plant
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Lost and Unaccounted For ProductPotential $ Savings
Equating Pure Methane Leak Rate to Dollars
$0.00
$500.00
$1,000.00
$1,500.00
$2,000.00
$2,500.00
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Cubic Feet Per Minute
An
nu
al $
In L
os
t P
rod
uc
t
At $4 Per 1000 CubicFeet
0.238 cu ft/min Estimated Economical to Repair
Economics of LAUF
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Optical Remote Leak Detection
Infrared Differential AbsorptionMid wave Infrared - 3 to 5 µmLong wave Infrared - 8 to 11 µmVisible - 0.4 to 1.0 MicronsNear IR -0.9 to 1.6 Microns
Remote sensing is the science and art of obtaining information about an object, area, or phenomenon through the analysis of data acquired by a device that is not in contact with the object, area, or phenomenon under investigation.
From Remote Sensingand Image Interpretation,
Lilles and and Kiefer, 1987
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Similar to Gas Chromatography
NIST
0
0.2
0.4
0.6
0.8
1
1.2
3.1 3.2 3.3 3.4 3.5 3.6 3.7
Wavelength (microns)
Abs
orba
nce
butane
ethane
propane
methane
water
CO2
3.31µm
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Active vs. Passive Imaging
Active techniques employ an artificial radiation source (e.g. a microwave transmitter, a laser, a thermal heater, etc.) for illumination of the target area
Passive techniques utilize the naturally occurring ambient radiation
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Passive Remote Optical Infrared Leak Detection, Quantification, and Speciation
LSILSI
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LSI Camera Visualizes Gasoline Vapor
Field PortableRuggedReliableRepeatableSensitivityEase of Use - Doesn’t
Require Frequent AdjustmentCapable of Identifying
“Inaccessible” Leaks
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LSI Leak Surveys Video Imagery
Flange Leak Buried Pipeline Leak
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Pipeline Leak Study
Driving – visible signs (e.g. vegetation
stress)
Driving with sniffer trucks twice a year
25 – 40 miles per day
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Pipeline Leak Study
Mass Balance Discrepancy Identified Need for
Survey
Infrared Remote Sensing from helicopter
200-400 miles per day
Amount of methane estimated at ~146 MM SCF /yr
or (0.5 MMSCFD)
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Monument Gas Plant
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Monument Gas Plant
Original plant built in 1936
Modifications in 1963 & 1976
31 engines for combined 25, 000 hp
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Monument Gas Plant
26 engines to be replaced with integral
electric compression
18, 500 HP Replaced
Amount of fuel saved is 1.5 BCF/yr and
Corresponding CO2 Reductions
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Monument Gas Plant
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Monument Gas Plant
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Monument Gas Plant
Cost of this project $ 8.3 MM
Amount of fugitive methane losses saved is
~41 MMSCF/yr
Ancillary Benefit - Criteria (e.g. NOx) and
HAPs pollutant reduction
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Monument Gas Plant
Infrared survey conducted to identify sources of
leakage
~200 leaking sources identified
Largest opportunities - blow down vents and valve
packing
Amount of methane saved is ~146 MMSCF/yr $1022K
@ $7/MSCF
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Current Plans
Phase II- EPA Study- Eunice Gas Plant and upstream
compressors
Chico Gas Plant Retest
Include the LSI Infra red camera ( tool kit )
Plan to implement DI&M surveys every two years at
gas plants/compressor stations
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Future Plans
Coordinated Efforts for Sharing BMPs with Field
Operations and Maintenance Personnel in 2005.
Increase management commitment through
awareness of cost effective opportunities
Dynegy is evaluating implementing D, I & M system
wide
Involve the Company media relation’s more
effectively
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Contact Information
Shankar Ananthakrishna
Senior Environmental Engineer
Dynegy Midstream Services, L.P.
Phone #: (713)-507-6753
Email: [email protected]
Jeffrey A. Panek
Principal
Innovative Environmental Solutions, Inc.
P.O. Box 177
Cary, Il 60013-0177
(847)516-3658
[email protected] FurryLeak Surveys Inc.P.O. Box 30661102 Early Blvd.Early, Texas 76802-2261(325) 641-8147Website: http://www.leaksurveysinc.com/