34/10-21
Eksport: PDF
-
Generell informasjon
-
Brønnhistorie
GeneralWell 34/10-21 was the third well drilled on the Gullfaks South structure in the Tampen Spur area in the northern North Sea. The objective was to test for possible hydrocarbon accumulations and for a possible extension of reserves in the Gullfaks South field. Targets included the Brent, Cook and Statfjord Sandstones and possible sand accumulations in the Early Cretaceous.Operations and resultsAppraisal well 34/10-21 was spudded with the semi-submersible installation Dyvi Delta on 26 July 1984 and drilled to TD at 4005 m in Late Triassic sediments of the Raude Formation. The well was drilled with gel/seawater down to 615 m, with gypsum/CMC/lignosulphonate from 615 m 3196 m, and with gel/lignosulphonate from 3196 m to TD.No sandstones were encountered in the Early Cretaceous. Hydrocarbon bearing Brent sandstone was encountered at 3287 m, with the hydrocarbon/water contact established at 3333 m+/-3 m. No hydrocarbons were identified in the Cook sandstones. The logs indicated hydrocarbons in the Statfjord Group, but drill stem test gave no flow from these sandstones. No shows were described above the Tarbert reservoir. Below the OWC, shows on sandstone were described down to 3359 m.Six cores were cut; four from 3289 m to 3383 in the Brent Group and two from 3970 m to 3985.5 in the Raude Formation. Core recoveries were from 90 % to 100 %. RFT fluid samples were taken in the Brent Group oil zone at 3298.5 m, 3317.3 m, and 3325.0 m.The well was permanently abandoned on 22 October 1984 as a gas appraisal well.TestingTwo drill stem tests were performed.DST 1 tested the interval 3905.2 m to 3922.2 m in the Statfjord Group. This test gave no flow.DST 2 tested the interval 3290.7 - 3312.7 m in the Tarbert Formation. This test produced 130 Sm3 condensate and 837800 Sm3 gas /day through a 14.29 mm choke. The GOR was 6424 SM3/Sm3, the condensate density was 0.80 g/cm3, the gas gravity was 0.65 (air=1). The downhole temperature reading in the test was 119.3 °C. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]228.004002.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13289.03306.3[m ]23307.03331.4[m ]33333.93359.0[m ]43361.53383.2[m ]53970.03973.6[m ]63973.53985.4[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]104.0Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
-
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie3045.0[m]SWCGEOCH3063.0[m]SWCGEOCH3077.0[m]SWCGEOCH3089.0[m]SWCGEOCH3102.0[m]DCGEOCH3103.0[m]SWCGEOCH3111.0[m]DCGEOCH3120.0[m]DCGEOCH3132.0[m]DCGEOCH3141.0[m]DCGEOCH3153.0[m]DCGEOCH3162.0[m]DCGEOCH3171.0[m]DCGEOCH3180.0[m]DCGEOCH3195.0[m]DCGEOCH3210.0[m]DCGEOCH3219.0[m]DCGEOCH3231.0[m]DCGEOCH3243.0[m]DCGEOCH3258.0[m]DCGEOCH3270.0[m]DCGEOCH3282.0[m]DCGEOCH3288.0[m]DCGEOCH -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTTEST23290.003312.00CONDENSATE13.10.1984 - 00:00YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1659091053179917991870191520142014231329002900290429112920292030473287328733463497350335503550363237633906390639143930 -
Geokjemisk informasjon
-
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.24pdf0.35 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf2.54pdf28.56pdf0.22pdf13.03pdf7.60pdf1.65pdf29.87pdf0.22pdf4.41 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.0390539220.02.03290331325.42.13290331225.42.23290331225.4Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.02.021.0002.113.00045.0002.227.00014.00045.000Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.02.019411320000.80458402.119711310000.80457322.211300000.8005700 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR7503954CEQL30353954CET GR30353966CST GR28553103DLL MSFL GR31814006ISF LSS MSFL GR6004005LDL CNL GR6004006MWD226600NGS31933611RFT GR32903512RFT GR32933498SHDT GR18963961WSS VSP2404005 -
Foringsrør og formasjonsstyrketester
Foringsrør og formasjonsstyrketester Type utforingUtforing diam.
[tommer]Utforing dybde
[m]Brønnbane diam.
[tommer]Brønnbane dyp
[m]LOT/FIT slam eqv.
[g/cm3]Type formasjonstestCONDUCTOR30226.036228.00.00LOTSURF.COND.20600.026745.01.81LOTINTERM.13 3/81896.017 1/21990.01.56LOTINTERM.9 5/83181.012 1/43196.01.99LOTLINER74000.08 1/24005.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling2281.03WATER BASED30.07.19844951.068.020.0WATER BASED30.07.19846291.227.020.0WATER BASED31.07.19847451.105.08.0WATER BASED03.08.198412371.115.07.1WATER BASED07.08.198417551.106.86.8WATER BASED07.08.198417601.176.87.7WATER BASED07.08.198419151.178.04.8WATER BASED07.08.198419151.2010.05.7WATER BASED07.08.198419151.2210.07.7WATER BASED07.08.198419151.2010.05.7WATER BASED07.08.198419151.2210.07.7WATER BASED07.08.198419181.299.04.2WATER BASED10.08.198419901.2913.04.8WATER BASED14.08.198421341.2814.04.9WATER BASED14.08.198428511.2615.05.8WATER BASED20.08.198429481.2715.05.0WATER BASED20.08.198429491.3314.07.7WATER BASED20.08.198430271.3317.06.6WATER BASED20.08.198430461.33WATER BASED21.08.198430471.3916.07.3WATER BASED21.08.198431351.3918.07.3WATER BASED22.08.198431851.4419.08.0WATER BASED23.08.198431961.4418.08.0WATER BASED24.08.198432201.4417.07.7WATER BASED28.08.198433611.4414.06.0WATER BASED03.09.198435861.4416.07.9WATER BASED06.09.198436121.4415.06.9WATER BASED10.09.198437001.4415.06.0WATER BASED11.09.198437601.4417.05.2WATER BASED13.09.198438461.4417.05.0WATER BASED17.09.198439621.4416.05.0WATER BASED19.09.1984 -
Trykkplott
Trykkplott Porertrykksdataene kommer fra logging i brønnen hvis ingen annen kilde er oppgitt. I noen brønner der trykk ikke er logget, er det brukt informasjon fra formasjonstester eller brønnspark. Trykkdataene er rapportert inn til Oljedirektoratet og videre prosessert og kvalitetssikret av IHS Markit.Trykkplott Dokument navnDokument formatDokumentstørrelse [MB]pdf0.22