temperature and pressure in the svartsengi ... - Orkustofnun

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56~ JHO·HSI:I-2300 GGL:..t.J 83 .08. 1011 A 'ASVARTSENGICross section - CInitial stateSG-# SG-4oDepth92 .0152.0192 .0500 210.0750"'-236.0240 ,0~ I.O242\1000 242.01250242 .0 N...242 .0242 .0242 .01500 241 .0SG-6SG-3,SG-2,SG-10200.0 I • •203 .0IU203.0210.0)~~IS . O 197o 216.0.., -'2. 225.0.-. '/.0_22 •. 0'1.30,..,0" NN0 0,.., N ·-237.3 ... ...237.9237.6237.3237.3237 .5237. 4236 .8234.6.-0
575.1.~ Cross-section DIt is an E-W section in the southern part of the productionfield (Fig. 37). The temperature distribution in 1982 Isshown In Fig. 44 and the distribution In 1983 Is shown inFig. 45. Quite large temperature changes are taking placein this part of the reservoir during one year. In 1982 thetemperatures are fairly uniformly distributed In this E- Wcross - section. A possIble temperature inversion Is notedIn wells SG-1 and SG - TT . Th e temperature distribution of1983 suggests that substantial cooling has taken place.particularly In well SG - TT. and this raises the Questionwhether this cooling is through well SG-lT. As seen InFig. 33 the possibility of down flow in 1983 In well SG - Ttcannot be ruled out from the present available data. On theother hand. the temperature profile from 1982 does notindicate a downward flow at that time. Temperatureinversions seem to be present in wells SG - 1 and SG - 9 in1983 and the temperatures in these wells are in general1-10 o C colder than in 1982. The cooling in well SG - 11 is13°C between 1982 and 1983.The lower end of the cemented casing in SG-l1 is at 582 mdepth. and a large604 m depth. Itacquifer was noticed during drilling atis possible that a downflow from theacquirer at 604 m caused the cooling of the reservoir atlarger depth. This situation might be at hand in some otherwells in this part of the field. The temperature profilein well SG - 8 from '83.03.16 (Fig. 21) is In an agreementwith an internal down flow in that well.5.1.5 Cross-section EIts location is shown in Fig. 31. and the temperaturedistribution in 1982 and 1983 is shown in Fig. 46 and 41respectively. The temperature variation within thereservoir in this SW - NE section is rather smooth at each
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 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: 55~ JHD-HSP-2300 GC!L...C.J 83.08.1
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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