methane emissions management at transcanada · 2005-09-15 · cancarb - carbon black facility...

Methane Emissions Management at TransCanada

“Modern Technologies of Detection and Elimination of Methane Leakages from Natural Gas Systems”

Tomsk, Russia

September 14-16, 2005

October 3, 2005TransCanada2

Methane Emissions Management

Agenda

TransCanada in business Climate Change Policy/StrategyGreenhouse Gas EmissionsEmissions Management TransCanada’s Experience

Control MethodologiesResearch & Development

ConclusionOpportunities


Leading North American energy company

Competitively positioned in natural gas transmission & power services$22.1 billion of premium pipe and power assets ($Cdn at Dec. 31, 2004)Skilled, expert people with strong technical knowledgeStrong financial position


Natural gas transmission & power assets

Transmission – 41,000 km of pipeline: 11.5 Bcf/dayPower – 5,700 MW (including LP and plants in development)


Methane emissions management

Climate Change Policy

Climate Change issue is not going away.Greenhouse Gas Emissions is potential liability for TransCanada.We have a plan in place to manage climate change.TransCanada believes in promoting global solutions to this global challenge. TransCanada believes prudent action is required.TransCanada believes in a strong commitment to technological innovation.


Climate Change Strategy

Methane Emissions Management

Participation in National Processes

Issue Table Process

Upstream Oil and Gas Working Group

Direct EmissionsReduction

TechnologyDevelopment

Fugitive Emissions Management

Blowdown Emissions Management

Dry Gas Seals

Methane Biofiltration

Combustion processes

Emissions Offsets

Landfill Gas Reuse

CDM/JI

Business Opportunities

?


Sources of greenhouse gas emissions

Source of Greenhouse Gas inTransCanada

- Company Vehicle- Rental Vehicle- Employee Vehicle

Cancarb - Carbonblack facility

Pipelines (include Valves,Compressor and Meter

Stations)

Power Plants

CO2CH4N2O Direct Indirect

Utility Consumption

Electricity



TransCanada emissions management system

- transfer compression- pipeline inspection tools- buttering and hot tapping- stopple plugs- repair sleeves- hot line lowering-Incineration

- CO2- CH4- N2O- PM

- CO- VOC’s- NOx

(leak detection& repair)

(measurement)

Combustion Emissions Vented Emissions (CH4, CO2)

Fugitive Emissions Blowdown Emissions

Energy Efficiency and Conservation

LDAR HFS

R & D


0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

kt

CO

2E

Carbon Dioxide Methane Nitrous Oxide Indirect

GHG emissions from pipeline operations and methane reduction


Total direct GHG emissions and methane emission decline

Percent Change of GHG Emissions by Type '1990 to 2004

67%

32%

1%

86%

12%

2%0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

CO2 CH4 N2O

kt

CO

2E e

mis

sio

ns

1990

2004


Fugitive emissions management program

Reduce fugitive emissions by implementing an effective leak detection and repair (LDAR) program and support Canada’s national emissions reduction strategy

Measure fugitive emissions from our facilities and contribute to the Canadian greenhouse gas reporting initiatives

use of high flow sampler (HFS)

annual measurement program for 10% CS, 5% MS and 5% VS per region

Will try to achieve a five year cycle for each facility

Reduce engineered fugitive emissions through research and development programs in place


Fugitive emissions management

(LDAR vs measurement)High flow sampler measurement

Accuracy: +/- 10%Identification of most “cost effective fixes”

Bacharach HFS - new


Measurement program

Complete measurement 20% of system per annum - with High Flow Sampler

conventional bagging is 10 times slower

Develop annual leak rates for different types of facilities to calculate system emissionsMeasurement data allow derivation of our GHG inventories.



Methane emissions from pipeline system by type of facility.

3%

22%

3%

2%

4%

1%

3%

62%

CSE

CSR

MSW

MSR

BMS

MD

BV

CST


Fugitive emissions management - opportunities

High Flow Sampler Data (1999-2003)

0

500

1000

1500

2000

2500

3000

3500

nu

mber

of

leaks

1999 2000 2001 2002 2003

CS

MS

BV

Leaking Components measured during HFS survey


Methane Emissions Management at TransCanada PipeLinesMethane emissions management

Sample field measurement data analysis

0

0.2

0.4

0.6

0.8

1.0

1.2

0.00 0.20 0.40 0.60 0.80 1.00 1.20

Cumulative Fraction of \ Leaking Components

Cu

mu

lati

ve F

ract

ion

of

To

tal

Leak R

ate


2004 HFS Leak Data by Equipment Type (% by volume of total) 21%

15%

10%8% 7%

6% 5% 5% 4% 4%2% 2% 2% 2% 1% 1% 1% 1% 1% 1% 1% 1% 1% 0% 0%

Dista

nce P

iece

Rod P

ackin

g

Loadin

g pock

et sea

l

Centr

ifugal

com

press

or seaoth

er

leak p

ast s

eat o

f blo

wdw

on

Inst

rum

ent contr

oller

Press

ure re

lief v

alves

Leak

past v

alve

seat

leak p

ast s

tem

pack

ing

gas sa

mple

r vents

Wate

r Analy

ser

gas sa

mple

r

Regula

tors

vent

Mech

anic

al c

ouplings

Blow

down e

nclosu

reFl

ange

H2S anal

yser

Threaded

connect

ors -

pipe..

OEL & v

ents

Heater v

ents

Threaded

connect

ors -

tubi..

Greas

e port

s Danie

l

Gas Chro

mato

graphs

vents

Orific

e m

eter

s

80% of total leak volume

Methane emissions management - opportunities

Priority repairs…


LDAR program achievement

Fugitive Emissions in million ft3 CH4

3233

1345

0

500

1000

1500

2000

2500

3000

3500

1997 2004

58% Reduction = 1888 MMcf


BcfBcf

223

137

2003 2004

kil

o t

on

ne C

O2E

Emissions saved

M

M

LDAR program savings

$3.4

$2.2

0.5280.325

2003 2004

$ Value of gas savedNatural gas volume save


Blowdown emissions management

Control methods and technologies usedScheduling practicesOperational adjustmentsTransfer (pull-down) compressorsButtered stubs Hot tappingSleevesStopplesHot line lowering


Blowdown emissions management savings

2004 Blowdown Emissions/Savings

81,500 t CO2E5,630 e3m3Total = $1.4M

725,000 t CO2E (1.7 bcf)50,130 e3m3Total = $12.5M

Net savings

Emissions Savings


LDAR program savings - gas saved in tree Equivalent

2004 Fugitive Emissions (LDAR) Program Contribution

167,000

33,000 2,150

MW 13

Trees Cars Homes WindPower


Other Methane Emission Reduction Projects

Project Status

Gas-Gas Ejector(for Dry Gas seal vent gas)

Bench testing at Didsbury CST

Biofiltration(for Engineered emissions)

Pilot Testing at three MS sites

Fuel Cell(for remote power replacing TEG’s)

Feasibility report completed

CH4 Incinerator(for low concentration methane leaks)

Start initial study with Natural Resources Canada

Sterling Engine(highly efficient 20-24% compared to TEG’s 5% )

Preliminary Investigation


Technology research and development(research and development project)

1315

212

0

500

1000

1500

tonn

e C

O2E

CO2 equivalent frommethane venting

CO2 from methaneincineration

GHG Emission Comparison with & without Incineration after Transfer Compression

Emission savings of 1,100 t CO2E

Use of incinerator for blowdownsIncineration of blowdown gas instead of venting (after transfer compression)At Caron Compressor Station, Moose Jaw, November 2002


Biofilter pilot plant for methane emissions reduction

Biofilteration for engineered emission mitigation (research and development project)

0

20

40

60

80

100

9:00 AM 12:00 PM 3:00 PM 6:00 PM 9:00 PMTime

0.0

20.0

40.0

60.0

80.0

100.0

1 2 3 4 5 6 7 8 9 10 11 12

Month

% O

xida

tion

Predicted observed


Methane Emissions Management(research and development project)

Gas-Gas Ejector for low pressure gas leaksGas-gas ejector for dry gas seal compressors leak capture

Use of gas-gas ejector to recompress seal gas emissions

Designing a gas-gas ejector to capture seal gas emissions

Re-injecting to high pressure system

Application to TransCanada Compressors would save

538 MMSCF/yr. of natural gas

227,000 tCO2E/yr. of greenhouse gas emissions

Negligible operating cost


Gas-gas ejector for dry gas seal compressors leak capture - (research and development project)

Compressor dry gas seal emissions mitigation research project

227 kt CO2 E/yr.653 t CO2 E/yr.

(538 MMCF/yr)

1 seal348 seals

Emissions value = $ 0.68 M

Market value of gas = $ 3.70M@ $6.84/1000 ft3



Conclusion - cost curve

Methane Management Programs in place

Co

st t

o r

ed

uce

GH

Gs

($/

ton

ne)

GHG emissions reductions required(million tonnes CO2e)


Canada’s Climate Change Commitment2008-2012

1990 2010

Milliontonnes(CO2e)

596

Actual 2001 Emissions: 720 Mt

830

Gap = 270 Mt

2000


How the 270MT GAP will be met

Partnership Fund

55 – 85 Mt

LFE

45 Mt

Climate Fund

75 – 115 Mt

Other

~41%

~8%~20%

~31% $1 billion


Commercial Business Opportunities

TransCanada can transfer expertise and management systems to achieve GHG reduction.

Technologies:• LDAR (leak detection & repair) Program Management • HFS (high flow sampler, leak measurement) Program

ManagementInformation Systems• Geofind Application (fugitive emissions web reporting

system), emission savings, volumes, dollar value etc…Services• TOP’s (Operating Procedures)• Training, reporting


Methane emissions management at TransCanadaContact info:• Evelyn WalkerManager, Climate Change

[email protected]• Hasan ImranAdvisor, Climate Change

[email protected] PipeLines450, 1st Street, S.W.

Calgary, AB, Canada, T2P5H1

Tel: (403) 920-2190, (403) 920-7270

Fax: (403) 920-2397

Toll free: 1.800.661.3805

mailto:[email protected]

mailto:[email protected]


TransCanada METHANE emissions management program

Thank you!

Any questions?


Back up slides


2004 summary of savings from methane emission reduction programs

Minimizing blowdownemissions

711,000 tonnes of CO2E (49,076 e3m3)

Transfer compression 322,000 tonnes of CO2E (22,218 e3m3)

Valve sealing 0

Buttering & hot Tapping 169,000 tonnes of CO2E (11,644 e3m3)

Repair sleeves 220,000 tonnes of CO2E (15,213 e3m3)

Reducing fugitive emissions 137,000 tonnes of CO2E


Corporate GHGs 2003

0

5

10

15

20

25

30

35

40

million tonnes C

O2E

Ont

. Pow

erTr

ansA

lta

Sask

. Po

wer

Impe

rial

ATC

OTr

ansC

anad

aSy

ncru

de

Sunc

orEn

cana

Dof

asco

Nov

a Ch

emicals


Methane emissions distribution

Greenhouse Gases

Pipe72%

Powe20%

Indirec8%

12%

88%

Methane Emissions

Combustion emissions

Greenhouse Gas Emissions

83%

17%Fugitive emissions

Blowdown emissions

Methane Emissions

methane emissions management at transcanada · 2005-09-15 · cancarb - carbon black facility...

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