ODs Faktasider. Brønnbane / Leting. Generell informasjon. Brønnbane navn 6507/10-1 EXPLORATION. Faktakart i nytt vindu. lenke

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1 Generell informasjon Brønnbane navn 6507/10-1 Type Formål Status Faktakart i nytt vindu Hovedområde EXPLORATION WILDCAT P&A lenke NORWEGIAN SEA Brønn navn 6507/10-1 Seismisk lokalisering SP X-OVER Boret i utvinningstillatelse 075 Boreoperatør Boretillatelse 337-L Boreinnretning SEDCO 707 Bore dager 114 Borestart Boreslutt Frigitt dato Publiseringsdato Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane Avstand, boredekk - midlere havflate [m] Vanndybde ved midlere havflate [m] BP Norway Limited U.A. WILDCAT NO DRY NO Totalt målt dybde (MD) [m RKB] Totalt vertikalt dybde (TVD) [m RKB] Maks inklinasjon [ ] 8.5 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader LATE TRIASSIC ÅRE FM ED ' 10.75'' N 7 14' 0.47'' E NS UTM [m] ØV UTM [m] UTM sone 32 NPDID for brønnbanen 81 Side 1 av 10

2 Brønnhistorie General Exploration well 6507/10-1 was the sixth well drilled on the Mid Norway continental shelf area. It is located in between later discoveries such as SmØrbukk, Heidrun, and Midgard. The main targets of the well were sandstones of middle to Late Jurassic age. Secondary targets were sandstones of Early Tertiary, Early Jurassic and Triassic age. The well is Reference Well for the Ror Formation. Operations and results Wildcat well 6507/10-1 was spudded with the semi-submersible installation Sedco 707 on 10 July 1982 and drilled to TD at 3693 m in the Åre Formation. Tight hole was experienced at the bottom of the 13 3/8" section. While drilling the 12 1/4" section the drill string stuck. After several attempts to free the string, the well was sidetracked. The sidetrack was drilled to 2007 m where the string again got stuck. The well was then sidetracked again to 2220 m at which point the string got stuck again. This time the string was jarred free and the 12 1/4" hole was finally drilled to 2780 m. Problems with the BOP and wellhead delayed operations in the 8 1/2" section. The well was drilled with spud mud down to 440 m, with a sea water/clay built native mud from 440 m to 913 m, and with CMC/gypsum mud from 1971 m to 2149 m. From 2149 m to 2780 m the mud was gradually broken over to a lignosulphonate (Spersene) mud, and from 2780 m to TD a Spersene/XP 20 mud was used. Sandstones were found in the Middle and Early Jurassic. The Early Tertiary sandstones were not present. The Triassic sandstone horizon was not penetrated. An 11% methane gas peak was recorded from a Miocene sandstone at 590 m but no fluorescence was noted. Sandstone in the interval m produced a slow crush cut fluorescence as did the Late Jurassic mudstone between 2779 m and 2828 m in the Spekk Formation. These were the only hydrocarbon indications recorded in the well. Logs and RFT pressure gradients proved all potential reservoir sections in the well to be 100% water wet. Organic geochemical analysis of the Jurassic sandstones confirmed the general lack of migrated hydrocarbons and found the well to be thermally immature down to about ca 3000 m. Two cores were taken at m to m and m to m in the Ile and Tilje Formations, respectively. No fluid samples were taken. The well was permanently abandoned on 31 October 1982 as a dry well. Testing No drill stem test was performed in the well. Borekaks i OD Side 2 av 10

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4 Borekaksprøve, topp dybde [m] Borekaksprøve, bunn dybde [m] Borekaksprøve tilgjengelig YES Borekjerner i OD Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [m ] [m ] Total kjerneprøve lengde [m] 15.2 Kjerneprøve tilgjengelig YES Kjernebilder m m m m Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP Side 4 av 10

5 [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC BP [m] DC BP [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC BP [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP Side 5 av 10

6 [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC BP [m] DC SAGA [m] DC SAGA [m] DC SAGA [m] SWC BP [m] DC SAGA Side 6 av 10

7 [m] DC BP [m] SWC BP [m] DC SAGA [m] SWC BP [m] SWC BP [m] DC BP [m] SWC BP [m] DC BP [m] SWC BP [m] SWC BP [m] DC BP [m] SWC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] SWC BP [m] DC BP [m] SWC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP [m] SWC BP [m] DC BP [m] DC BP [m] DC BP [m] SWC BP [m] SWC BP [m] DC BP [m] DC BP [m] SWC BP [m] DC BP [m] SWC BP [m] DC BP [m] SWC BP [m] DC BP [m] DC BP [m] DC BP Side 7 av 10

8 [m] DC BP [m] SWC BP [m] DC BP [m] DC BP [m] DC BP [m] DC BP Litostratigrafi Top depth [m] Lithostrat. unit 322 NORDLAND GP 1439 HORDALAND GP 1439 BRYGGE FM 1980 ROGALAND GP 1980 TARE FM 2040 TANG FM 2088 SHETLAND GP 2088 SPRINGAR FM 2550 NISE FM 2660 KVITNOS FM 2725 CROMER KNOLL GP 2725 LYSING FM 2728 LANGE FM 2770 LYR FM 2781 VIKING GP 2781 SPEKK FM 2835 MELKE FM 2881 FANGST GP 2881 ILE FM 2994 BÅT GP 2994 ROR FM 3081 TILJE FM 3226 ÅRE FM Spleisede logger navn format størrelse [KB] 81 pdf 0.63 Side 8 av 10

9 Geokjemisk informasjon navn format størrelse [KB] 81_1 pdf _2 pdf _3 pdf _4 pdf 1.53 er - eldre OD WDSS rapporter og andre relaterte dokumenter navn format størrelse [KB] 81_01_WDSS_General_Information pdf _02_WDSS_completion_log pdf 0.23 er - rapportert av utvinningstillatelsen (frigitt ihht til regelverk) navn 81_01_Geological_CompletionReport_&_Comp letionlog format størrelse [KB] pdf _02_Engineering_CompletionReport pdf _03_Drilling_Completion_Report pdf _04_Depositional_Environments_and_Reser voir_potential pdf _05_Final_core_report_1-2 pdf _06_Geochemical_analysis_of_four_jurassic _core pdf _07_Geochemical_analysis_of_sediments pdf _08_Geological_evaluation_report pdf _09_Petrophysical_study_of_norwegian_off shore pdf _10_Petrophysical_study_Appendix pdf _11_Pressure_evaluation pdf _12_Stratigraphy_branch pdf _13_The_clay_mineral_analysis_of_twenty_ seven 81_14_The Petroleum_Geochemistry_of_Haltenbanken pdf 1.08 pdf 7.69 Logger Side 9 av 10

10 Type logg Topp dyp Bunn dyp for for logg [m] logg [m] CBL VDL GR CBL VDL GR CST GR HDT ISF BFCS MSFL CAL GR SP ISF BHCS GR SP ISF BHCS MSFL CAL GR SP ISF BHCS MSFL CAL GR SP LDL CNL CAL GR RFT GR VSP Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde [m] Brønnbane diam. [tommer] Brønnbane dyp [m] Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR LOT SURF.COND. 18 5/ LOT INTERM. 13 3/ / LOT OPEN HOLE / LOT OPEN HOLE / LOT INTERM. 9 5/ / LOT OPEN HOLE / LOT Side 10 av 10