temperature and pressure in the svartsengi ... - Orkustofnun

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485 SPATIAL DISTRIBUTION OF TEMPERATURE AND PRESSURE INTHE RESERVOIRLocation of wells and cross-sections Is shown In relationwith the locatIon of the power plant In Svartsengi (Fig.37). In order to show both the vertical and the horizontaldistribution of the temperature. several croas-sectionshave been selected together with planar mapsdepths.at various5.1 Vertical distributionThe wells I n Svartsengi are more or less alligned in theSW - NE direction. Cross- section A will therefore be theprinCipal one (Fig. 37). In addition five other crosssectionshave been selected In order to see better thethree dimensionalthermal system. Weindividually.variationwill nowof temperature In the geodiscusseach cross- section5.1.1 Cross-section AThe location is shown in Fig.distribution is shown for 1976initial state of the reservoir),37. and the temperature(which is close to the1982 and 1983. BeforeexplOitation, temperatures in excess of 2~0°C were found inwells SO - ~ and SO-5 (Fig. 38), but in 1982 such tempera tures were only observed in the SW part of the field inwells SO-ll, 9, 8 and 7 (Fig. 39). In 1983 temperaturesof 240°C cannot be found in the reservoir (Fig. 40). Thehottest part of the reservoir at this time is 230 - 235°C.There seems to be a temperature inversion in the SW partof the field. and the hottest part atlarge depth seems tobe around wells SO-5 and SO-6. The disappearance of the2~OoCfluid can be associated with the utilization of thefield. Production started from the northern part of thefield, and up to 1981,the production was only from wellsSG-3, 4, 5 and 6. This means that the mass taken out of the
;-r-::I J HO - HS" - 2 300 Gq\//Ll:.JS3.0a . 1017 AASVARTSENGI H,T AREALocat ion of drillholes_ /\ I "~ ~ 2 :: LlN£-CJ \/ /5G3\~, • }\_-_---- ~. __ f/J..,..,.1:',,', ," ·1":,, ,~- ,;;-- . ' "" ,::.',' '>, ... ,\ I , -:-:' ~ SI.> -5 .-:'' t;:"'""'". I.~ " '~ ::>~NI/I~0",5G;'~.? ?Dv ~
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 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: 47N,~• ~, •8 •"•a'i:i•L-N
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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