ੑ㉄ൻ⚛ߩਛേ⸃ᨆߦ߅ߌࠆᩰሶᒻ⁁ലᨐߦߟߡ 㧙ࡏࡠࡁࠗᩰሶߣ⍱ᒻᩰሶߩᲧセ㧙
ᄢᚑᑪ⸳㧔ᩣ㧕ᛛⴚࡦ࠲ ᱜળຬ ٤ጊᧄ ⡸ 㧝㧚ߪߓߦ
Ꮕಽᴺߦࠃࠆᄙ⋧ᵹߩᢙ୯⸃ᨆߢߪ㧘ᩰሶᒻ⁁ߦࠃߞߡ⇣ߥࠆ⸃ᨆ⚿ᨐ߇ᓧࠄࠇࠆߎߣ㧔ᩰሶᒻ⁁ലᨐ
; grid
orientation effect
㧕߇⦟ߊ⍮ࠄࠇߡࠆ㧚ᧄⓂߢߪ㧘ੑ㉄ൻ⚛ߩਅ⾂⇐ߩࠪࡒࡘ࡚ࠪࡦࠍኻ⽎ߦ㧘㜞ᰴᄙⷺᒻߩࡏࡠࡁࠗᩰሶߦࠃࠅᒻ⁁ലᨐߩૐᷫࠍ⹜ߺߚ⚿ᨐࠍႎ๔ߔࠆ
.
㧞㧚ੑ㉄ൻ⚛ߩਛേ⸃ᨆੑ㉄ൻ⚛ਅ⾂⇐ߪ㧘Ἣജ⊒㔚ᚲ߿㋕ᚲߥߤߩឃࠟࠬ߆ࠄ
CO
2 ࠍ࿁ߒ㧘ਅᷓㇱߩጀਛߦߔࠆਛ᷷ᥦൻኻ╷ߢࠆ㧚ߘߩታ↪ൻߦߚࠅ㧘ᓟߩ
CO
2 ߩਛേࠍᱜ⏕ߦ੍᷹ᛠីߔࠆᛛⴚߩ⏕┙߇㊀ⷐߥ⺖㗴ߣߥࠆ㧚
CO
2ߪ᷷ᐲജ᧦ઙ߆ࠄ⥃⇇⁁ᘒߣߥࠆਅ⚂1km
એᷓߦ⾂⇐ߐࠇࠆ㧚ߘߎ ߢ㧘CO
2ߩਛേ⸃ᨆߢߪ㧘᷷ᐲജߦኻߒߡᢅᗵߦᄌൻߔࠆ⥃⇇CO
2ߩᵹ‛ᕈ㧔ኒᐲ߿☼ᕈߥߤ㧕߿㧘᳓ߣ
CO
2ߩ⋧↪㧔ੑ⋧ᵹ․ᕈ㧘ṁ⸃ߥߤ㧕ࠍࡕ࠺࡞ൻߒߚᄙᚑಽᄙ⋧♽ߩᵹ⸃ᨆࠦ࠼ࠍ↪ߔࠆᔅⷐ߇ࠆ㧚ߎࠇ߹ߢߦ㐿⊒ߐࠇߚࠦ࠼ߩᄙߊߪᏅಽᴺߢࠅ㧘ᧄ⎇ⓥߢߪ㧘ⓍಽᏅಽᴺߦࠃࠆ⸃ᨆࠦ
࠼
TOUGH2 ECO2N
1), 2), 3)ࠍ↪ߡࠆ㧚ⓍಽᏅಽᴺߪ㧘㕖᭴ㅧᩰሶࠍ↪ࠆߎߣ߇ߢ߈ࠆ߇㧘㓞ធߔࠆᩰሶ ὐ㑆ࠍ⚿߱⋥✢߇ᩰሶ㕙ߣ⋥ߔࠆࡏࡠࡁࠗᩰሶࠍ↪ߔࠆߎߣ߇⸘▚♖ᐲᦸ߹ߒ㧚ߥ߅㧘ᦨ߽න⚐ߥࡏ ࡠࡁࠗᩰሶߣ߃ࠆ⍱ᒻᩰሶࠍណ↪ߒߚ႐วߦߪ㧘ㅢᏱߩ5
ὐᏅಽࠬࠠࡓߩ㒢Ꮕಽᴺߣห╬ߣߥࠆ㧚 㧟㧚ᩰሶᒻ⁁ലᨐ߃߫㧘ਅ᳓ߢḩߚߐࠇߚጀਛߦ㧘ᚭ߆ࠄ
ߩᵹ㧔ࠟࠬߥߤ㧕ࠍߔࠆੑ⋧ᵹ㗴ࠍ㒢Ꮕಽ ᴺߢ⸃ᨆߔࠆ႐วࠍ⠨߃ࠆ㧚ߎߩߣ߈㧘࿑
-1
ߩੑߟߩ⍱ᒻᩰሶ㧔ᐔⴕᩰሶߣኻⷺᩰሶ㧕ߢߪ㧘⸘▚⚿ᨐ㧔
߃߫࿑ਛߩ㘻ᐲ╬୯✢㧕߇⇣ߥࠆߎߣ߇⦟ߊ⍮ࠄࠇ ߡࠆ㧚ߎࠇߪᩰሶᒻ⁁ലᨐߣ߫ࠇ㧘⍹ᴤ㐿⊒Ꮏቇ ߩಽ㊁ߢ
1970
ᐕઍ߆ࠄᜰ៰ߐࠇߡ߅ࠅ㧘ੑ⋧ᵹߩ ᤃേᐲᲧ㧔mobility ratio
㧕߇ᄢ߈߶ߤ⪺ߒ4)㧚ࠄ ߆ߥᵹࠇߩਥᣇะ߇ࠇ߫㧘ߘߩᣇะߦวࠊߖߡᩰሶ ࠍ࿁ォߔࠇ߫⦟߇㧘ᚭࠅ߿᳓ℂ⊛ߥ⇣ᣇᕈ߿ਇ ဋ৻ᕈ߇ࠆ႐วߦߪ㧘ਥᣇะࠍ⸳ቯߔࠆߎߣߪ㔍ߒ㧚ߎߩᒻ⁁ലᨐߪ㧘
9
ὐᏅಽࠬࠠࡓ߿2
ὐ㘑ᴺ ߥߤߦࠃࠅૐᷫߢ߈ࠆ߇㧘⸘▚ߩ⽶⩄߽ᄢ߈ߊߥࠆ㧚 ᧄ⎇ⓥߢߪ㧘㕖᭴ㅧᩰሶࠍ↪น⢻ߥⓍಽᏅಽᴺࠦ࠼ߢࠆ
TOUGH2
ߩ․ᓽࠍ↢߆ߒ㧘㜞ᰴᄙⷺᒻߩࡏࡠࡁࠗᩰሶߦࠃࠆᒻ⁁ലᨐߩૐᷫߦߟߡᬌ⸛ߒߚ㧚 㧟㧚ࡏࡠࡁࠗᩰሶߣ⍱ᒻᩰሶߩᲧセ
◲නߥ᧦ઙߢੑ㉄ൻ⚛ߩਅ⸃ᨆࠍⴕ㧘⍱
ᒻᩰሶ㧔྾ⷺᒻ㧕ߣࡏࡠࡁࠗᩰሶ㧔㜞ᰴᄙⷺᒻ㧕ߩᩰ
ሶᒻ⁁ലᨐࠍᲧセߔࠆ㧚⸃ᨆߢߪ㧘ᷓᐲ
1km
⋧ᒰ㧔᷷ᐲ
45
͠,
ജ10MPa
㧕ߩ᳓ᐔߥᏪ᳓ጀ㧔ᐢߐ10km
10km
㧘ෘߐ1m
㧕ߩਛᄩߦࠍ⸳ቯߒ㧘⥃⇇CO
2 ࠍ0.52 (kg/s)
ߩㅦᐲߢߒߚ㧚Ⴚ⇇᧦ઙߪ㧘ਅ㕙(a)
ᐔⴕᩰሶ(b)
ኻⷺᩰሶ(c)
ࡏࡠࡁࠗᩰሶ࿑
-1
⍱ᒻᩰሶߢߩᒻ⁁ലᨐߣࡏࡠࡁࠗᩰሶ
(a)
⍱ᒻᩰሶ(b)
ࡏࡠࡁࠗᩰሶ࿑
-2
ᩰሶߦࠃࠆCO
2㘻ᐲߩಽᏓᒻ⁁ߩ㆑㘻ᐲ╬୯✢
ࠠࡢ࠼
CO
2ਅ⾂⇐㧘ᄙ⋧ᵹ㧘ࡏࡠࡁࠗᩰሶ㧘ᩰሶᒻ⁁㧘ਅ᳓ㅪ⛊వ ޥ245-0051 ᮮᵿᏒᚭႦฬἑ↸344-1 ᄢᚑᑪ⸳㧔ᩣ㧕ᛛⴚࡦ࠲ TEL 045-814-7237
ᚭ
土木学会第64回年次学術講演会(平成21年9月)
‑595‑
Ⅲ‑298
ࠍ㐽㎮Ⴚ⇇㧘㕙ࠍ࿕ቯႺ⇇ߣߒߚ㧚ጀ‛ᕈߪ㧘ലⓨ
㓗₸㧦
40%
㧘⛘ኻᶐㅘ₸㧦100md
㧔ࡒ࠳࡞ࠪ㧕 ߣߒ ߚ㧚㐿ᆎ߆ࠄ㧝ᐕᓟߩCO
2 㘻ᐲߩ⸘▚⚿ᨐࠍ࿑-2
ߦ␜ߔ㧚ߎߩ࿑߆ࠄ㧘(a)
ߩ⍱ᒻᩰሶߢߪCO
2㘻ᐲಽᏓ ߇྾ⷺᒻ⁁ߦߥߞߡࠆߩߦᲧߴߡ㧘(b)
ߩࡏࡠࡁࠗᩰሶ ߢߪ㧘⌀ᒻߩಽᏓ߇ᓧࠄࠇ㧘⸃ᨆ⚿ᨐߦ߅ߌࠆ߆ߌߩ⇣ᣇᕈ߇චಽߦૐᷫߐࠇߡࠆߎߣ߇ಽ߆ࠆ㧚 㧠㧚ታࠨࠗ࠻߳ߩㆡ↪
☨࿖ߩᶏጯ⚛㓒㔌ၞදജ
WESTCARB
ߢߪ㧘ࠞࡈࠜ࡞࠾ࠕᎺߩ
Kimberlina
ߦ߅ߡᐕ㑆25
ਁt
ߩCO
2ࠍ4
ᐕ㑆ㅪ⛯ߔࠆᬺⷙᮨታ⸽⹜㛎ࠍ⸘↹ߒߡࠆ5), 6)㧚⹜㛎ࠨࠗ࠻ㄝߩ⍹ᴤࠟࠬ↰ߩࡏࡦࠣ࠺࠲߆ࠄ᭴
▽ߒߚ㧟ᰴర⾰ࡕ࠺࡞5)ࠍ࿑
-3
ߦ␜ߔ㧚࿑ਛ㧘CO
2ኻ⽎ጀߢࠆ
Vedder
ጀߪ㧘ᷓᐲ⚂2.3km
㧘ෘߐ⚂160m
ߩ⍾ᵆጤጀߢࠆ㧔ജ ⚂
22MPa
㧘᷷ᐲ80
͠㧕㧚ߎߩVedder
ጀߩ߁ߜ㧘ᦨㇱߩ⍾ጤጀ㧔ෘߐ⚂27m
㧕ߦ⚂8.2
ਁ
t
㧛ᐕߩㅦᐲߢߒߚCO
2ߩਛേߩ⸃ᨆ⚿ᨐࠍ࿑-4
ߣ࿑-5
ߦ␜ߔ㧚ᶐㅘ₸ߥߤߩ⸘▚↪ࡄࡔ࠲ߪ㧘Doughty
ࠄ6)ߣ߶߷ห᭽ߣߒߚ㧚⾂⇐ጀߩ⍾ጤጀߣߘࠇࠍ ⷒ߁ㆤ⭁ጀߢࠆᵆጤጀߩ⛘ኻᶐㅘ₸ߪ㧘᳓ᐔᣇะߢฦޘ200md, 0.01md
㧔㋦⋥ᣇะߪߘߩ1/10
㧕ߢࠆ㧚㐿ᆎ ᓟ㧘CO
2 ߪജ൨㈩ߦࠃߞߡᚭ߆ࠄ⁁ߦᐢ߇ࠆ߇㧘⥃⇇
CO
2ߩኒᐲߪਅ᳓ࠃࠅ߽ዊߐ㧔࿁ߩ᷷ᐲജ᧦ઙߢߪ⚂
0.6 g/cm
3㧕ߚ㧘CO
2ߩࡊࡘࡓߦߪᶋ ജ߽↪ߔࠆ㧚ᓥߞߡ㧘࿑-4
ߩ㋦⋥ᢿ㕙ߢࠆߣ㧘CO
2 ߩࡊࡘࡓߪ㧘ߔࠅ㋬⁁ࠍ๒ߒߥ߇ࠄ㧘⾂⇐ጀ㕙㧔ㆤ⭁ጀ㧕ߩᢳ㧔⚂
7
q㧕ߦᴪߞߡᣇߦ⒖േߔࠆߩ߇ಽ߆ ࠆ㧚࿑-5
ߦ␜ߔ⾂⇐ጀ㕙ߩCO
2㘻ᐲߩಽᏓࠍࠆߣ㧘 ห࿑a
ߩ⍱ᒻᩰሶߩ႐วߦߪCO
2ߩᦨᄢ⒖േᣇะ߇⾂⇐ጀ㕙ߩᦨᄢᢳᣇะߣ⇣ߥࠆߩߦኻߒߡ㧘ห࿑
b
ߩࡏࡠ ࡁࠗᩰሶߩ႐วߦߪ㧘ਔ⠪߇߶߷৻⥌ߔࠆ㧚㧡㧚߹ߣ
1)
ᚭ߆ࠄߩCO
2േࠍ⍱ᒻᩰሶ㧔5
ὐᏅಽᴺ㧕ߢ⸃ᨆߔࠆ႐ว㧘ᩰሶᣇะߩᓇ㗀߇ਇนㆱߢࠆ㧚
2)
ⓍಽᏅಽᴺߢߪ㧘㜞ᰴᄙⷺᒻߩࡏࡠࡁࠗᩰሶࠍ↪ࠆߎߣߦࠃࠅ㧘ᩰሶᣇะᕈߩᓇ㗀ࠍචಽߦૐᷫߢ߈ࠆ㧚
⻢ㄉ㧦⸃ᨆ↪࠺࠲ࠍߏឭଏߚߛߚࡠࡦࠬࡃࠢ
࿖┙⎇ⓥᚲߩ
C. Doughty
᳁㧘C. Oldenburg
᳁㧘ࡠࡦࠬࡃࡕࠕ࿖┙⎇ⓥᚲߩJ. Wagoner
᳁ߦᗵ⻢ߚߒ߹ߔ㧚ෳ⠨ᢥ₂㧦1) Pruess, K. et al., 1999. TOUGH2 user's guide. Version 2.0. LBNL Report. LBNL-43134. 2) Pruess, K. ECO2N: A TOUGH2 fluid property module for mixtures of water, NaCl, and CO2, 2005. LBNL Report, LBNL-57952. 3) Yamamoto,H. et al., 2009, Numerical investigation for the impact of CO2 geologic sequestration on regional groundwater flow, International Journal of Greenhouse Gas Control, (in press). 4) Aziz,K., Settari,A.,1979, Petroleum Reservoir Simulation, Applied. Science Publishers, London. 5) Wagoner, J., 2007. Update on the geologic model of the Kimberlina Area, Westcarb Annual Business Meeting, Seattle, WA, Nov. 28, 2007. 6) Doughty,C. et al.,2008.
Predictions of long-term behavior of a large-volume pilot test for CO2 geological storage in a saline formation in the Central Valley, California,Energy Procedia, Vol.1 (Proc. 9th Int. Conf. Greenhouse Gas Control Tech.), pp.3291-3298.
࿑
-3
ታ⸽⹜㛎ࠨࠗ࠻ߩ㧟ᰴర⾰ࡕ࠺࡞5)࿑
-4 CO
2ਛേ㧔㋦⋥ᢿ㕙ߩCO
2㘻ᐲ㧕1 year 4 years䇭
End Injection
(a)
⍱ᒻᩰሶ6㧕Injection Well
(b)
ࡏࡠࡁࠗᩰሶ㧔㜞ᰴᄙⷺᒻ㧕࿑
-5
ᩰሶᒻ⁁ߦࠃࠆCO
2േߩ੍᷹⚿ᨐߩ㆑㧔⾂⇐ጀ㕙ߢߩ
CO
2㘻ᐲಽᏓ㧕ᦨᄢᢳᣇะ (ѳᦨᄢ⒖േᣇะ㧕
ᦨᄢᢳᣇะ
ᦨᄢ⒖േᣇะ
500m
ኻ⽎ጀ Vedder ጀ
㧠ᐕ㧔⚳ੌ㧕
㧣ᐕ㧔⚳ੌ߆ࠄ㧟ᐕᓟ㧕 㧝ᐕ
⾂⇐ጀ ㆤ⭁ጀ 土木学会第64回年次学術講演会(平成21年9月)
‑596‑
Ⅲ‑298
