15/9-15
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Generell informasjon
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Brønnhistorie
GeneralWell 15/9-15 was drilled south of the Sleipner Øst Field in the Viking Graben of the North Sea. The objectives were to test possible hydrocarbon accumulations in Paleocene and Mesozoic sandstones in the 15/9 My structure.Operations and resultsWildcat well 15/9-15 was spudded with the semi-submersible installation Ross Rig on 28 May 1982 and drilled to TD at 3200 m in the Triassic Skagerrak Formation. During drilling the 12 1/4" section, a significant volume of mud was lost at 2200 m. The thief zone was most probably in the Frigg sand. 3 days were spent locating the zone and pumping LCM pills. Otherwise no significant problem was encountered in the operations, which proceeded with little downtime. The well was drilled with spud mud down to 515 m and with gypsum/lignosulphonate mud from 515 m to TD.The Paleocene sandstones were missing in this well. The Mesozoic sandstones were encountered at 2806. The upper part consisted of tight Melke Formation sandstones without shows. From 2821 m (top Skagerrak Formation) they were gas bearing down to a true gas/water contact at 2923 m. No oil shows were recorded outside of the hydrocarbon-bearing reservoir in this well.Four cores were cut across the reservoir from 2805 m in the Heather Formation to 2878.2 m in the Skagerrak Formation. The core-to-log depth shift was 2.8 m for all four cores. RFT fluid samples were taken at 282.5 m (gas, condensate and mud filtrate), 2838.5 m (gas, condensate and mud filtrate), and at 2907 m (gas, condensate and mud filtrate) fluid samples were taken.The well was permanently abandoned on 1 August 1982 as a gas and condensate discovery.TestingTwo Drill Stem Tests were performed.DST 1 tested the interval 2880 m to 2890 m. It produced 298000 Sm3 gas and 155 Sm3 condensate through a 32/64” choke. The GOR was 1922 Sm3/Sm3, the condensate density was 0.760 g/cm3, and the gas gravity was 0.718 with 0.2% CO2. The maximum temperature was 106.8 °C.DST 2 tested the interval 2830 m to 2850 m. It produced 293900 Sm3 gas and 124 Sm3 condensate through a 28/64” choke. The GOR was 2478 Sm3/Sm3, the condensate density was 0.757 g/cm3, and the gas gravity was 0.710 with 0.5% CO2. The maximum temperature was 105.7 °C.Both Drill Stem Tests included a flow period with a three-step multirate drawdown test. Check the well completion report and well test report for further details, such as flow parameters for other choke sizes. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]170.002769.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet12805.02823.4[m ]22823.42841.6[m ]32841.62859.9[m ]42859.92878.2[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]73.2Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2752.5[m]SWCRRI2768.0[m]SWCRRI2777.0[m]SWCRRI2793.0[m]SWCRRI2818.6[m]CAPT2821.0[m]CAPT2821.8[m]CAPT2822.4[m]CAPT2828.4[m]CAPT2829.4[m]CAPT2830.6[m]CAPT2831.4[m]CAPT2832.0[m]CAPT2832.3[m]CAPT2836.8[m]CAPT2849.2[m]CAPT2849.8[m]CAPT2851.5[m]CAPT2851.7[m]CAPT2853.6[m]CAPT2853.8[m]CAPT2857.7[m]CAPT2862.8[m]CAPT2866.9[m]CAPT2868.7[m]CAPT2872.1[m]CAPT2874.9[m]CAPT2876.5[m]CAPT -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTTEST12880.002890.0020.07.1982 - 00:00YESDSTTEST22830.002850.0025.07.1982 - 00:00YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1088841129202722082208224323322418241826062672271927512751280628212821 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.18pdf0.25 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf0.39pdf5.35pdf1.04pdf1.18pdf0.59pdf19.09pdf1.95pdf19.09 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.02880289025.02.02830285022.0Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.02.0Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.01884670000.7700.73625512.02025100000.7670.7402507 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR1001172CBL VDL GR10502463CBL VDL GR23003139CST12872464CST26703189CST27013194CST27343189DLL MSFL GR28002950GEODIP28002950HDT24633202ISF BHC GR1721191ISF BHC MSFL GR11783201LDT CNL GR11782470LDT GR4981191RFT28233090 -
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 formasjonstestCONDUCTOR30171.536171.50.00LOTSURF.COND.20498.026515.01.65LOTINTERM.13 3/81178.017 1/21192.01.68LOTINTERM.9 5/82463.012 1/42478.01.87LOTLINER73199.08 1/23200.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3501.11waterbased5151.09waterbased11901.13waterbased19201.20waterbased24351.21waterbased26301.40waterbased26801.50waterbased -
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]pdf0.23