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pdfOMB Control No. 2060-0328
Approval Expires 3/31/2008
Company Information
Natural Gas STAR
International
Company Name:
Gas STAR Contact:
Title:
Address:
City, State/Province:
Country:
Telephone:
Fax:
E-mail:
Annual Report
2007
This report contains emissions reductions data for [please specify
country and business unit(s)]*:
Period of time covered by report:
From: __________
To: __________
International Annual Report Summary
Please provide information on the technologies and practices your company implemented and submit a report page for only
those activities.
This package includes the following:
Five Annual Reporting forms (please make additional copies, if necessary)
Additional Program Accomplishments form
Appendix including proposed methane emissions reduction technologies and conversion factors
Signature:
Date:
* Please submit a separate annual reporting form for each country for which you are reporting emissions reductions.
In addition to reporting methane emissions reductions, you are welcome to include other information about your company’s
participation in Natural Gas STAR International in the “Additional Program Accomplishments” section of this form. Natural
Gas STAR International will use any information entered in this section to recognize the efforts and accomplishments of
outstanding partners.
EPA Form No. 5900-107
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Methane Emission Reduction Technologies & Practices
Current Year Activities
A. Facility/location identifier information:
(Note: Each facility requires its own reporting form)
B. Activity description: Please provide a separate reporting form for each technology or practice implemented.
Please specify the technology or practice that was implemented
(choose from the list in the appendix or describe your own):
Please describe how your company implemented this activity
(including location or facility where implemented):
C. Industry Sector (please indicate in which industry sector you implemented this activity):
Production (from underground to wellhead)
Gathering & Processing (from gathering lines and proc.
plants to the point gas transfers to trans. pipelines)
D. Level of Implementation (check one):
Number of units installed:
Units
Frequency of practice:
Times/year
Distribution (gate stations to customer connections)
Transmission (transmission lines—including compression
stations—to the point gas transfers to city gate stations)
E. Are emissions reductions a one-year reduction
or a multi-year reduction?
One-year
Multi-year
If Multi-year:
Partner will report this activity once and let EPA
automatically calculate future emission reductions based
on sunset date duration*.
Partner will report this activity annually.
F. Methane emissions reduction:
Mcf
Please identify the basis for the emissions reduction estimate. If needed, attach
calculations separately.
Actual field measurement
Calculation using manufacturer specifications/other source
* Gas STAR allows certain technologies/practices to count towards a company’s
emission reductions beyond the year they were initially implemented. For example, a
technology implemented in 2007 can accrue emission reductions in future years. Gas
STAR designates the length of time that these reductions accrue as “sunset dates.”
Appendix A lists these sunset dates. Companies can choose to allow EPA to apply
the sunset dates or choose to report each technology/practice on an annual basis (i.e.
not using sunset dates).
G. Cost summary:
Estimated cost of implementing this activity (including
equipment and labor): U.S. $
Other (Please specify)
H. Total value of gas saved or other economic
benefits (please describe):
U.S. $
I. To what extent do you expect to implement this
activity next year?
Total value of gas saved (in U.S. Dollars) = Methane emissions
reduction (in Mcf) x Gas value (in U.S. $/Mcf)
Additional Comments:
Previous Years' Activities
Use the table below to report any past implementation of this technology or practice, but not previously reported to Natural Gas
STAR International.
Year
Frequency of Activity or # of
Installations
Total Cost of Activity
(incl. equipment and labor) (U.S. $)
Estimated Reductions
(Mcf/yr)
Value of
Gas Saved
(U.S. $)
Comments/Additional Benefits: Please describe any additional economic, operational, environmental, or safety benefits
achieved by implementing this technology or practice. Use the back of the page for additional space if needed.
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Methane Emission Reduction Technologies & Practices
Current Year Activities
A. Facility/location identifier information:
(Note: Each facility requires its own reporting form)
B. Activity description: Please provide a separate reporting form for each technology or practice implemented.
Please specify the technology or practice that was implemented
(choose from the list in the appendix or describe your own):
Please describe how your company implemented this activity
(including location or facility where implemented):
C. Industry Sector (please indicate in which industry sector you implemented this activity):
Production (from underground to wellhead)
Gathering & Processing (from gathering lines and proc.
plants to the point gas transfers to trans. pipelines)
D. Level of Implementation (check one):
Number of units installed:
Units
Frequency of practice:
Times/year
Distribution (gate stations to customer connections)
Transmission (transmission lines—including compression
stations—to the point gas transfers to city gate stations)
E. Are emissions reductions a one-year reduction
or a multi-year reduction?
One-year
Multi-year
If Multi-year:
Partner will report this activity once and let EPA
automatically calculate future emission reductions based
on sunset date duration*.
Partner will report this activity annually.
F. Methane emissions reduction:
Mcf
Please identify the basis for the emissions reduction estimate. If needed, attach
calculations separately.
Actual field measurement
Calculation using manufacturer specifications/other source
* Gas STAR allows certain technologies/practices to count towards a company’s
emission reductions beyond the year they were initially implemented. For example, a
technology implemented in 2007 can accrue emission reductions in future years. Gas
STAR designates the length of time that these reductions accrue as “sunset dates.”
Appendix A lists these sunset dates. Companies can choose to allow EPA to apply
the sunset dates or choose to report each technology/practice on an annual basis (i.e.
not using sunset dates).
G. Cost summary:
Estimated cost of implementing this activity (including
equipment and labor): U.S. $
Other (Please specify)
H. Total value of gas saved or other economic
benefits (please describe):
U.S. $
I. To what extent do you expect to implement this
activity next year?
Total value of gas saved (in U.S. Dollars) = Methane emissions
reduction (in Mcf) x Gas value (in U.S. $/Mcf)
Additional Comments:
Previous Years' Activities
Use the table below to report any past implementation of this technology or practice, but not previously reported to Natural Gas
STAR International.
Year
Frequency of Activity or # of
Installations
Total Cost of Activity
(incl. equipment and labor) (U.S. $)
Estimated Reductions
(Mcf/yr)
Value of
Gas Saved
(U.S. $)
Comments/Additional Benefits: Please describe any additional economic, operational, environmental, or safety benefits
achieved by implementing this technology or practice. Use the back of the page for additional space if needed.
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Methane Emission Reduction Technologies & Practices
Current Year Activities
A. Facility/location identifier information:
(Note: Each facility requires its own reporting form)
B. Activity description: Please provide a separate reporting form for each technology or practice implemented.
Please specify the technology or practice that was implemented
(choose from the list in the appendix or describe your own):
Please describe how your company implemented this activity
(including location or facility where implemented):
C. Industry Sector (please indicate in which industry sector you implemented this activity):
Production (from underground to wellhead)
Gathering & Processing (from gathering lines and proc.
plants to the point gas transfers to trans. pipelines)
D. Level of Implementation (check one):
Number of units installed:
Units
Frequency of practice:
Times/year
Distribution (gate stations to customer connections)
Transmission (transmission lines—including compression
stations—to the point gas transfers to city gate stations)
E. Are emissions reductions a one-year reduction
or a multi-year reduction?
One-year
Multi-year
If Multi-year:
Partner will report this activity once and let EPA
automatically calculate future emission reductions based
on sunset date duration*.
Partner will report this activity annually.
F. Methane emissions reduction:
Mcf
Please identify the basis for the emissions reduction estimate. If needed, attach
calculations separately.
Actual field measurement
Calculation using manufacturer specifications/other source
* Gas STAR allows certain technologies/practices to count towards a company’s
emission reductions beyond the year they were initially implemented. For example, a
technology implemented in 2007 can accrue emission reductions in future years. Gas
STAR designates the length of time that these reductions accrue as “sunset dates.”
Appendix A lists these sunset dates. Companies can choose to allow EPA to apply
the sunset dates or choose to report each technology/practice on an annual basis (i.e.
not using sunset dates).
G. Cost summary:
Estimated cost of implementing this activity (including
equipment and labor): U.S. $
Other (Please specify)
H. Total value of gas saved or other economic
benefits (please describe):
U.S. $
I. To what extent do you expect to implement this
activity next year?
Total value of gas saved (in U.S. Dollars) = Methane emissions
reduction (in Mcf) x Gas value (in U.S. $/Mcf)
Additional Comments:
Previous Years' Activities
Use the table below to report any past implementation of this technology or practice, but not previously reported to Natural Gas
STAR International.
Year
Frequency of Activity or # of
Installations
Total Cost of Activity
(incl. equipment and labor) (U.S. $)
Estimated Reductions
(Mcf/yr)
Value of
Gas Saved
(U.S. $)
Comments/Additional Benefits: Please describe any additional economic, operational, environmental, or safety benefits
achieved by implementing this technology or practice. Use the back of the page for additional space if needed.
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Methane Emission Reduction Technologies & Practices
Current Year Activities
A. Facility/location identifier information:
(Note: Each facility requires its own reporting form)
B. Activity description: Please provide a separate reporting form for each technology or practice implemented.
Please specify the technology or practice that was implemented
(choose from the list in the appendix or describe your own):
Please describe how your company implemented this activity
(including location or facility where implemented):
C. Industry Sector (please indicate in which industry sector you implemented this activity):
Production (from underground to wellhead)
Gathering & Processing (from gathering lines and proc.
plants to the point gas transfers to trans. pipelines)
D. Level of Implementation (check one):
Number of units installed:
Units
Frequency of practice:
Times/year
Distribution (gate stations to customer connections)
Transmission (transmission lines—including compression
stations—to the point gas transfers to city gate stations)
E. Are emissions reductions a one-year reduction
or a multi-year reduction?
One-year
Multi-year
If Multi-year:
Partner will report this activity once and let EPA
automatically calculate future emission reductions based
on sunset date duration*.
Partner will report this activity annually.
F. Methane emissions reduction:
Mcf
Please identify the basis for the emissions reduction estimate. If needed, attach
calculations separately.
Actual field measurement
Calculation using manufacturer specifications/other source
* Gas STAR allows certain technologies/practices to count towards a company’s
emission reductions beyond the year they were initially implemented. For example, a
technology implemented in 2007 can accrue emission reductions in future years. Gas
STAR designates the length of time that these reductions accrue as “sunset dates.”
Appendix A lists these sunset dates. Companies can choose to allow EPA to apply
the sunset dates or choose to report each technology/practice on an annual basis (i.e.
not using sunset dates).
G. Cost summary:
Estimated cost of implementing this activity (including
equipment and labor): U.S. $
Other (Please specify)
H. Total value of gas saved or other economic
benefits (please describe):
U.S. $
I. To what extent do you expect to implement this
activity next year?
Total value of gas saved (in U.S. Dollars) = Methane emissions
reduction (in Mcf) x Gas value (in U.S. $/Mcf)
Additional Comments:
Previous Years' Activities
Use the table below to report any past implementation of this technology or practice, but not previously reported to Natural Gas
STAR International.
Year
Frequency of Activity or # of
Installations
Total Cost of Activity
(incl. equipment and labor) (U.S. $)
Estimated Reductions
(Mcf/yr)
Value of
Gas Saved
(U.S. $)
Comments/Additional Benefits: Please describe any additional economic, operational, environmental, or safety benefits
achieved by implementing this technology or practice. Use the back of the page for additional space if needed.
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Methane Emission Reduction Technologies & Practices
Current Year Activities
A. Facility/location identifier information:
(Note: Each facility requires its own reporting form)
B. Activity description: Please provide a separate reporting form for each technology or practice implemented.
Please specify the technology or practice that was implemented
(choose from the list in the appendix or describe your own):
Please describe how your company implemented this activity
(including location or facility where implemented):
C. Industry Sector (please indicate in which industry sector you implemented this activity):
Production (from underground to wellhead)
Gathering & Processing (from gathering lines and proc.
plants to the point gas transfers to trans. pipelines)
D. Level of Implementation (check one):
Number of units installed:
Units
Frequency of practice:
Times/year
Distribution (gate stations to customer connections)
Transmission (transmission lines—including compression
stations—to the point gas transfers to city gate stations)
E. Are emissions reductions a one-year reduction
or a multi-year reduction?
One-year
Multi-year
If Multi-year:
Partner will report this activity once and let EPA
automatically calculate future emission reductions based
on sunset date duration*.
Partner will report this activity annually.
F. Methane emissions reduction:
Mcf
Please identify the basis for the emissions reduction estimate. If needed, attach
calculations separately.
Actual field measurement
Calculation using manufacturer specifications/other source
* Gas STAR allows certain technologies/practices to count towards a company’s
emission reductions beyond the year they were initially implemented. For example, a
technology implemented in 2007 can accrue emission reductions in future years. Gas
STAR designates the length of time that these reductions accrue as “sunset dates.”
Appendix A lists these sunset dates. Companies can choose to allow EPA to apply
the sunset dates or choose to report each technology/practice on an annual basis (i.e.
not using sunset dates).
G. Cost summary:
Estimated cost of implementing this activity (including
equipment and labor): U.S. $
Other (Please specify)
H. Total value of gas saved or other economic
benefits (please describe):
U.S. $
I. To what extent do you expect to implement this
activity next year?
Total value of gas saved (in U.S. Dollars) = Methane emissions
reduction (in Mcf) x Gas value (in U.S. $/Mcf)
Additional Comments:
Previous Years' Activities
Use the table below to report any past implementation of this technology or practice, but not previously reported to Natural Gas
STAR International.
Year
Frequency of Activity or # of
Installations
Total Cost of Activity
(incl. equipment and labor) (U.S. $)
Estimated Reductions
(Mcf/yr)
Value of
Gas Saved
(U.S. $)
Comments/Additional Benefits: Please describe any additional economic, operational, environmental, or safety benefits
achieved by implementing this technology or practice. Use the back of the page for additional space if needed.
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Additional Program Accomplishments
The Natural Gas STAR International Program will use any information entered here to recognize the efforts and
achievements of outstanding partners.
Please include any additional information you would like to share about your company’s participation in Natural Gas
STAR International. Examples may include:
•
Activities to strengthen your program (e.g., training/education, innovative technologies or activities, pilot
projects, employee incentive programs).
•
Efforts to communicate your participation and successes (e.g., internal newsletters, press releases,
company Web site).
•
Participation in Natural Gas STAR International program activities (e.g., contributions to case studies,
presentation at workshops).
Additional Accomplishments: Please use the back of the page for additional space if needed.
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Appendix A-1
Methane Emission Reduction Technologies & Practices—
Production Sector
The list below describes a variety of methane emission reduction technologies that Natural Gas STAR partners in the production sector
have implemented and reported to Natural Gas STAR. Sunset dates (i.e. the length of time a technology or practice can continue to
accrue emission reductions after implemented) are one year in duration unless otherwise noted in parentheses. An asterisk (*)
indicates that a technical document related to the technology or practice is available online at epa.gov/gasstar/techprac.htm.
Compressors/Engines
Pipelines
Inject blowdown gas into low pressure mains*
Pipeline replacement and repair
Using pipeline pumpdown techniques to lower gas
Automate systems operation to reduce venting*
Automated air/fuel ratio controls (10 years)*
Catalytic converter installation (10 years)
Convert engine starting to nitrogen (10 years)*
Convert to low pressure compressor starters
(10 years)
Eliminate unnecessary equipment and/or systems*
Increase compression capacity to reduce
venting/flaring
Install electric compressors (10 years)*
Install electric motors (10 years)
Install lean burn compressor (10 years)
Redesign blowdown systems and alter ESD
practices*
Reducing emissions when taking compressors offline*
Reducing methane emissions from compressor rod
packing systems*
Replace gas starters with air (10 years)*
Replace ignition - reduce false starts*
Turbine fuel use optimization
Dehydrators
Install condensers on glycol dehydrators (10 years)
Install flares (10 years)*
Optimize glycol circulation and install of flash tank
separators in dehydrators *
Replacing gas-assisted glycol pumps with electric
pumps (10 years)*
Replacing glycol dehydrators with desiccant
dehydrators (10 years)*
Reroute glycol skimmer gas*
Shutdown glycol dehydrator stripping gas in winter
Directed Inspection & Maintenance
DI&M at compressor stations*
DI&M: leak detection using lower emission threshold
DI&M: survey and repair leaks
line pressure before maintenance *
Pneumatics/Controls
Capture/use gas released from gas-operated
pneumatic pumps
Convert gas pneumatic controls to instrument air (10
years)*
Convert gas-driven chemical pumps to instrument air
(10 years)*
Convert pneumatics to mechanical controls
(10 years)*
Install controllers on gas-assisted methanol pump
(10 years)
Install electronic flare ignition devices (10 years)*
Install no bleed controllers (10 years)
Install non-venting dump controllers (10 years)
Reduce gas pressure on pneumatic devices
Tanks
Consolidate crude oil production and water storage
tanks (10 years)*
Convert water tank blanket from natural gas to
produced CO2 gas (10 years)*
Install evactors (10 years)
Install flash gas compressors (10 years)
Install hydrocarbon liquid stabilizer (10 years)
Install pressurized storage of condensate (10 years)*
Installing VRUs on crude oil storage tanks
(10 years)*
Protective tank coatings to reduce leaks (10 years)
Recycle line recovers gas during condensate
loading*
Reduce excess blanket gas blow-by to the
atmosphere
Valves
Install BASO valves (10 years)*
Install plugs on valves and open ended lines
(10 years)
Test and repair pressure safety valves*
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Appendix A-1 (cont.)
Methane Emission Reduction Technologies & Practices—
Production Sector
Wells
Other
Artificial lift: gas lift (10 years)
Artificial lift: pressure swabbing
Connect casing to vapor recovery unit OR Install
Capture and use waste heat to reduce gas usage
compressors to capture casinghead gas (10 years)*
Gas well "smart" automation system (10 years)*
Gas well unloading time optimization*
Green completions*
Install automated shut-in cycle units to reduce well
venting (10 years)
Install flash tank separator on water gathering
system (10 years)
Install pumpjacks on low water production gas wells
(10 years)*
Install pumps for separators (10 years)
Install soap launcher/soap unit (10 years)
Install velocity tubing strings (10 years)*
Installing plunger lift systems at gas wells (10 years)*
Installing plunger lift systems at gas wells (10 years)*
Lower heater-treater temperature*
Use foaming agents*
and emissions
Flare reduction program
Install flares (10 years)*
Nitrogen rejection unit optimization*
Recover gas from separators
Re-inject gas for enhanced oil recovery
Re-inject gas into crude
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Appendix A-2
Methane Emission Reduction Technologies & Practices—
Gathering and Processing Sector
The list below describes a variety of methane emission reduction technologies that Natural Gas STAR partners in the gathering and
processing sector have implemented and reported to Natural Gas STAR. You may use this list as a guide when completing your
annual report. Sunset dates (i.e. the length of time a technology or practice can continue to accrue emission reductions after
implemented) are one year in duration unless otherwise noted in parentheses. An asterisk (*) indicates that a technical document
related to the technology or practice is available online at epa.gov/gasstar/techprac.htm.
Compressors/Engines
Pneumatics/Controls
Install back-up power at booster sites to prevent
Eliminate unnecessary equipment and/or systems*
Install electric compressors (10 years)*
Install electric starters (10 years)*
Redesign blowdown systems and alter ESD
practices*
Reducing emissions when taking compressors offline*
Replace gas starters with air (10 years)*
Dehydrators
Install condensers on glycol dehydrators (10 years)
Install flares (10 years)*
Optimize glycol circulation and install of flash tank
venting (10 years)
Install no bleed controllers (10 years)
Tanks
Install hydrocarbon liquid stabilizer (10 years)
Install pressurized storage of condensate (10 years)*
Installing VRUs on crude oil storage tanks
(10 years)*
Reduce excess blanket gas blow-by to the
atmosphere
Reduce vapors vented out of drip tanks
Route inlet flash vapors to station suction (10 years)
separators in dehydrators*
Replace glycol dehydration units with methanol
injection (10 years)*
Replacing gas-assisted glycol pumps with electric
pumps (10 years)*
Reroute glycol skimmer gas*
Directed Inspection& Maintenance
DI&M at compressor stations*
DI&M: aerial leak detection using laser and/or
infrared technology
DI&M: leak detection using IR camera/optical
imaging
Improve measurement systems to track gas loss
Inspect and repair compressor station blowdown
valves*
Pipelines
Composite wrap for non-leaking pipeline defects*
Pipeline replacement and repair
Recover gas from pipeline pigging operations*
Revise pigging schedule to reduce methane
emissions
Use inert gases and pigs to perform pipeline purges*
Using hot taps for in-service pipeline connections*
Using pipeline pumpdown techniques to lower gas
line pressure before maintenance*
Valves
Convert gas operated valves to hydraulic operation
(10 years)
Heat tracing to prevent control valves from freezing
open
Rupture pin shutoff device to reduce venting
(10 years)
Other
Install flares (10 years)*
Nitrogen rejection unit optimization*
Process/re-route acid gas to reduce venting
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Appendix A-3
Methane Emission Reduction Technologies & Practices—
Transmission Sector
The list below describes a variety of methane emission reduction technologies that Natural Gas STAR partners in the
transmission sector have implemented and reported to Natural Gas STAR. You may use this list as a guide when completing your
annual report. Sunset dates (i.e. the length of time a technology or practice can continue to accrue emission reductions after
implemented) are one year in duration unless otherwise noted in parentheses. An asterisk (*) indicates that a technical document
related to the technology or practice is available online at epa.gov/gasstar/techprac.htm.
Compressors/Engines
Automate systems operation to reduce venting*
Automated air/fuel ratio controls (10 years)*
Eliminate unnecessary equipment and/or systems*
Install electric compressors (10 years)*
Install electric motors (10 years)
Install electric starters (10 years)*
Lower purge pressure for shutdown*
Redesign blowdown systems and alter ESD practices*
Reduce the frequency of engine starts with gas*
Reducing emissions when taking compressors off-line*
Reducing methane emissions from compressor rod
packing systems*
Replace compressor cylinder unloaders*
Replace gas starters with air (10 years)*
Replace ignition - reduce false starts*
Replacing wet seals with dry seals in centrifugal
compressors (10 years)*
Pipelines
Composite wrap for non-leaking pipeline defects*
Inject blowdown gas into low pressure mains*
Perform leak repair during pipeline replacement*
Pipeline replacement and repair
Recover gas from pipeline pigging operations*
Use inert gases and pigs to perform pipeline purges*
Using hot taps for in-service pipeline connections*
Using pipeline pumpdown techniques to lower gas
line pressure before maintenance*
Tanks
Capture methane released from pipeline liquid
storage tanks (10 years)*
Install flash gas compressors (10 years)
Pneumatics/Controls
Convert gas pneumatic controls to instrument air (10
years)*
Dehydrators
Install condensers on glycol dehydrators (10 years)
Install flares (10 years)*
Optimize glycol circulation and install of flash tank
separators in dehydrators (10 years)*
Replace glycol dehydrator with separators & in-line
heaters (10 years)*
Replacing gas-assisted glycol pumps with electric
pumps (10 years)*
Reroute glycol skimmer gas*
Directed Inspection and Maintenance
Conduct DI&M at remote sites*
DI&M: aerial leak detection using laser and/or infrared
Convert gas-driven chemical pumps to instrument air
(10 years)*
Reduce meter run blowdowns
Replace bi-directional orifice metering with ultrasonic
meters*
Valves
Close main and unit valves prior to blowdown*
Design isolation valves to minimize gas blowdown
volumes (10 years)*
Move fire gates in to reduce venting at compressor
stations (10 years)*
Test and repair pressure safety valves*
Use of YALE closures for ESD testing*
technology
DI&M: leak detection using IR camera/optical imaging
DI&M: survey and repair leaks
Inspect and repair compressor station blowdown
valves*
Use ultrasound to identify leaks*
Wells
Switch from underbalanced to overbalanced drilling
in gas storage field
Other
Improve system design/operation
Install flares (10 years)*
Require improvements in quality of gas received*
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Appendix A-4
Methane Emission Reduction Technologies & Practices—
Distribution Sector
The list below describes a variety of methane emission reduction technologies that Natural Gas STAR partners in the distribution
sector have implemented and reported to Natural Gas STAR. You may use this list as a guide when completing your annual report.
Sunset dates (i.e. the length of time a technology or practice can continue to accrue emission reductions after implemented) are one
year in duration unless otherwise noted in parentheses. An asterisk (*) indicates that a technical document related to the technology
or practice is available online at epa.gov/gasstar/techprac.htm.
Compressors/Engines
Eliminate unnecessary equipment and/or systems*
Install electric starters (10 years)*
Redesign blowdown systems and alter ESD
practices*
Reduce the frequency of engine starts with gas*
Reducing methane emissions from compressor rod
packing systems*
Replace ignition - reduce false starts*
Dehydrators
Install flares (10 years)*
Directed Inspection and Maintenance
DI&M at compressor stations (non-mainline
transmission)
DI&M: survey and repair leaks
Improve measurement systems to track gas loss
Increase walking survey from a 5-to 3-year basis*
Pipelines
Inject blowdown gas into low pressure mains*
Insert gas main flexible liners (10 years)*
Reduce/downgrade system pressure
Use no-blow insertion fittings*
Using hot taps for in-service pipeline connections*
Using pipeline pumpdown techniques to lower gas
line pressure before maintenance*
Pneumatics/Controls
Convert gas pneumatic controls to instrument air (10
years)*
Convert gas-driven chemical pumps to instrument air
(10 years)*
Valves
Install excess flow valves (10 years)*
Install overpressure protection system (10 years)
Test and repair pressure safety valves*
Test gate station pressure relief valves with nitrogen*
Other
Improve system design/operation
Install flares (10 years)*
Re-inject CNG cylinder test gas
Retighten LNG pumps seals
Use automated systems to reduce pressure
Natural Gas STAR International
Annual Report
OMB Control No. 2060-0328
Approval Expires 3/31/2008
Appendix B
Conversion Factors
Please see below for a variety of conversion factors that might be useful when completing your annual report. Please
contact Natural Gas STAR if you have questions about this information.
Gas Conversions
Please report emissions reductions to Natural Gas STAR International in thousand cubic feet (Mcf).
1 Cubic foot of methane = 1,014.6 Btu
1 Btu
= 0.000986 Cubic feet of methane
1 Cubic foot
1 Cubic meter
= 0.02832 Cubic meter
= 35.312 Cubic feet
1 Mile
1 Kilometer
= 1.609 Kilometer
= 0.6214 Mile
1 Btu
1 Calorie
= 251.996 Calories
= 0.00397 Btu
1 Btu
1 Joule
= 1055.056 Joules
= 0.00095 Btu
Natural Gas STAR Program Managers:
Mailing Information:
Carey Bylin
Phone: +1 (202) 343-9669
Fax: +1 (202) 343-2202
Email: [email protected]
Roger Fernandez
Phone: +1 (202) 343-9386
Fax: +1 (202) 343-2202
Email: [email protected]
Suzie Waltzer
Phone: +1 (202) 343-9544
Fax: +1 (202) 343-2202
Email: [email protected]
Standard Mail:
The Natural Gas STAR Program
U.S. EPA (6207J)
1200 Pennsylvania Ave, NW
Washington, DC 20460
U.S.A.
Express/Overnight Mail:
The Natural Gas STAR Program
U.S. EPA (6207J)
1310 L Street, NW
Washington, DC 20005
U.S.A.
The public reporting and recordkeeping burden for this collection of information is estimated to average 60 hours for each new
response and 27 hours for subsequent responses. Send comments on the Agency's need for this information, the accuracy of the
provided burden estimates, and any suggested methods for minimizing respondent burden, including through the use of automated
collection techniques to the Director, Collection Strategies Division, U.S. Environmental Protection Agency (2822T), 1200 Pennsylvania
Ave., NW, Washington, D.C. 20460. Include the OMB control number in any correspondence. Do not send the completed form to this
address.
| File Type | application/pdf |
| File Title | Microsoft Word - international_annual.doc |
| Author | Visitor |
| File Modified | 2008-02-05 |
| File Created | 2008-02-05 |