temperature and pressure in the svartsengi ... - Orkustofnun

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65.25.35.1.6 Cross - sectIon F ... . ........................... 63Horizontal distribution5 • 2. 1 DistributIon at a5.2.2 Distribution at a5.2.3 Distribution at aCooling between 1982 and........... ..................depth of 700 m ...... ........depth of 1000 m .............depth of 1 1 00 m .............1983 In the reservoir ......63666666726 EVOLUTION WITH TIME............... .. . .. ................. 7~7 CAUSES 0, TEMPERATURE CHANGES7.1 Boiling 777.2 Lateral cold inflow.......... . ...................... 787.3 Episodic cold inflow................................ 787.4 Decreased lateral inflow of hot fluid ............ , .. 797.5 Calibration of instruments ........ ............... ... 797.6 Discussion ..... ... ... ..... ........................ .. 808 CONCLUSIONS............................................. 81ACKNOWLEDGEMENTS .•...•..•••.•••••••••••••••••••••••..•.••. 82RHERENCES •.••.••••••..• . ....•••.•...••..•.•••..•..•.....• 83LIST OF '1GURESFig. 1 Western Reykjanes peninsula and location of Svartsengihigh temperature field ...... ... ....... .. ...... 12Fig. 2 Location of wells. faults and dykes in the Svarts -engi production field.............................. 15Fig. 3 A simplified geological cross - section of the produc tion field in Svartsengi. Line of cross - sectionshown in Fig. 2 •...•..•..•..•.•••.••••••••••••••••• 16Fig . 4 Resistivity at 600 m depth below sea level at thewestern part of the Reykjanes peninsula ......... ... 18
7Fig. 5 Conceptual flow model from the Reykjanes peninsula.. 20Fig. 6 History of exploitation of the Svartsengi reservoirfrom 1977 to 1982 • .. .•.••..••.•.....•..•.•••.•••... 21Fig. 7 Simplified temperature profile of the Svartsengigeothermal field.......... .. ....................... 23Fig. 8 Amerada recording gauges for pressure andtemperature........................... .. ........... 27Fig. 9 Cross-sections of Amerada pressure and temperatureprobes 28Fig.lO Svartsengi well SG - 1. Temperature profile in 1976.. 31Fig.lt Svartsengl well SG - l, Pressure profile in 1976 . .... 31Flg.12 Svartsengi well SG - 2. Temperature in 1976 and 1981with corresponding saturation curves 32Fig.13 Sva r tsengi well SG - 2. Pressure profiles in 1976and 1981 ......•..•............•.................. . . 32Fig.14 Svartsengi well SG - 3. Temperature profiles in 1976.1981. 1983 and corresponding saturation temperatureprofiles............................ . .. . ........... 34Fig.15 Svartsengi well SG - 3. Pressure profiles in 1977.1981 and 1983 ....... . ............. . ............ . .. . 3~Fig.16 Svartsengi well SG - 4. Temperature profiles in 1976and 1982 ..••.....•..••..•........•.••.••.•••.•..•.. 35Fig.17 Svartsengl well SG - 4. Pressure profiles in 1982 .... 35Fig.18 Svartsengi well SG - 5 . Temperatu r e profile in 1976and correspond i ng saturation profile .•.... • .. ... ... 36
Page 1: TEMPERATURE ANDPRESSURE INTHE SVART
Page 5: 5LIST OF CONTENTSPag eABSTRACT ....
Page 9 and 10: 9Fig.32 Svartsengi well SG-l0. Pres
Page 11 and 12: 111 INTRODUCTION1.1 Scope of the re
Page 13 and 14: 1 3to the former (Georgsson. 1981;
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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