temperature and pressure in the svartsengi ... - Orkustofnun

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12••• ••••o:/.4"m :() Known oreos of klw tniltlwity...-.. ~ ~.)'lIjonn Pnlsuto~ ""INC zone• HiQh t."'*"'ture enc.,- Main tectonic iaJ"- Eruption '''tuNS•Fig. 1 Western Reykjanes peninsula and l ocation of Svarts eng! high temperature field (from Franzson. 1983).horizontal planes) are used 1n the study of the behaviourof the reservoir as a function of time. Boiling conditionsas a function of time are also included .1.3 Geographical setting of SvartsenglThe Mid-Atlantic Ridge surfaces on to Iceland at thesouthwestern end of the Reykjanes peninsula where itcrosses the country in a northeasterly direction. The riftprocess on thE: Reykjd lles peninsu l a Is characterized by anENE-WSW trendlng seismic zone below 2-3 km depth, but onthe surface by NE - SW fissure swarms arranged en echeleon
1 3to the former (Georgsson. 1981; Franzsson, 1983).intersection of the two types is the Svartsengitemperature field located (Fig. 1).Atanhigh-1.4 Data used in the reportThe temperature and pressure measurements used In thisstudy were all taken by the Geothermal Division of the NEAin the period between '16.07.12 and '83.06.16. Thedifferences In the well conditions at the time of measure ment range from the wells having been closed for as longas one year I up to measurements made right after production.1.5 Limits to the studyThe work Is restricted to the time and spatial distributionof temperature and pressure at depths of 500 m and belowin the Svartsengl reservoir.
Page 1: TEMPERATURE ANDPRESSURE INTHE SVART
Page 5 and 6: 5LIST OF CONTENTSPag eABSTRACT ....
Page 7 and 8: 7Fig. 5 Conceptual flow model from
Page 9 and 10: 9Fig.32 Svartsengi well SG-l0. Pres
Page 11: 111 INTRODUCTION1.1 Scope of the re
Page 15 and 16: u JHD - BJ~2300 HF,83.05.0702 AAI>-
Page 17 and 18: 1 72.3 Resistivity studies of the f
Page 19 and 20: 1 9Fresh water is pumped from shall
Page 21 and 22: ... T [IIKFII€9ISlOFoVI VII2.O
Page 23 and 24: 2 3~ JHO-HSP - 2300 G9~ 83.091236 A
Page 25 and 26: 25commissioned. Well SG - 7 was dri
Page 27 and 28: 27~ J H D-HS~ - 9 0 00 Gl:iL.J::..J
Page 29 and 30: 293.2 Temperature elementThe bourdo
Page 31 and 32: SVARTSENG I ,WEL L SG-1SVAR TSENG I
Page 33 and 34: 33temperature at the bottom of the
Page 35 and 36: -".(!)'W (!)rJ)rJ)fa...J WrJ) 3-"
Page 37 and 38: SVARTSENGIWELL SG-5SVARTSENGIWELL S
Page 39 and 40: SVARTSENGIWELL SG-6SVARTSENGIWELL S
Page 41 and 42: SVARTSENGI\JELL SG-7SVARTSENGIwELL
Page 43 and 44: 430NNN~~•-••;;• •~0l•0
Page 45 and 46: 45pressure profiles in Fig. 32. In
Page 47 and 48: 47N,~• ~, •8 •"•a'i:i•L-N
Page 49 and 50: ;-r-::I J HO - HS" - 2 300 Gq\//Ll:
Page 51 and 52: EI]JHO-HSI> . 2300 GGI 83.08.1020 A
Page 53 and 54: 53reservoir during 1976- 1981 Is fr
Page 55 and 56: 55~ JHD-HSP-2300 GC!L...C.J 83.08.1
Page 57 and 58: 575.1.~ Cross-section DIt is an E-W
Page 59 and 60: 59rnJHO-HSI:>-Z300 GG.83 .08 .1010
Page 61 and 62: I"jT'=I~ HD-H S P - 2 500 GC;L..t.J
Page 63 and 64:
time , but the change in temperatur
Page 65 and 66:
f"i'T"':lJHO~HSP-2]OO GGL.:..L...J
Page 67 and 68:
67r;r.:I~HO ·Hs~-noo GGL.:..J::J l
Page 69 and 70:
69["j'T'=l JHO·HS ~- 2.100 GGL.:..
Page 71 and 72:
7 1r,r::l JHO-HS P- 2 300 GG~ a3 .
Page 73 and 74:
73~ JHD·HSJ> · 2300 GOt..:J:.J 83
Page 75 and 76:
75rn JHD·HS~-2300GG83.09.1274 A"AS
Page 77 and 78:
777 CAUSES OF TEMPERATURE CHANGESEx
Page 79 and 80:
797.4 Decreased lateral inflow of h
Page 81 and 82:
818 CONCLUSIONS1. The Svartsengl re
Page 83 and 84:
83REFERENCESArnason, B .• 1976: G
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