ODs Faktasider. Brønnbane / Leting. Generell informasjon. Brønnbane navn 6306/6-1 EXPLORATION. Faktakart i nytt vindu. lenke. Brønn navn 6306/6-1

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1 Generell informasjon Brønnbane navn 6306/6-1 Type Formål Status Faktakart i nytt vindu Hovedområde EXPLORATION WILDCAT P&A lenke NORWEGIAN SEA Brønn navn 6306/6-1 Seismisk lokalisering Boret i utvinningstillatelse 198 Boreoperatør Boretillatelse 791-L LineEH & SP451 Boreinnretning ROSS RIG (2) Bore dager 14 Borestart Boreslutt Frigitt dato Publiseringsdato Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane Avstand, boredekk - midlere havflate Vanndybde ved midlere havflate Den norske stats oljeselskap a.s WILDCAT NO DRY NO Totalt målt dybde (MD) [m RKB] Totalt vertikalt dybde (TVD) [m RKB] Maks inklinasjon [ ] 1.3 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader PRE-DEVONIAN BASEMENT ED ' 1.45'' N 6 49' 14.42'' E NS UTM ØV UTM UTM sone 32 NPDID for brønnbanen 2384 Side 1 av 8

2 Brønnhistorie General Well 6306/6-1 was drilled on the Frøya High in the Møre I area off shore southern Mid Norway. The main objective was to prove HC accumulations in Late Jurassic Rogn Formation sandstones, the A-prospect. Operations and results Wildcat well 6306/6-1 was spudded with the semi-submersible installation Ross Rig on 22 June 1994 and drilled to TD at 1317 m in basement rocks. No significant problems were encountered in the operations. The well was drilled with bentonite and seawater down to 432 m and with KCl/PAC mud from 432 m to TD. The Paleocene Egga sandstone unit was encountered at 604 m. The sandstones were rather silty; partly calcite cemented, and with reduced porosity due also to the presence of mica and glauconite. A 93 m thick Rogn Formation sandstone unit came in at 1158 m, sandwiched in Spekk Formation shales above and below. Under base Spekk a sequence of Middle Jurassic age (Fangst Group) was penetrated from 1267 m to 1281 m. Sandstones with occasional interbeds of claystone/shale grading to coals dominated this sequence. No shows were recorded in any section of the well while drilling, and since only questionable sandstone extracts were found in post-well organic geochemical analyses the well is concluded as dry. Very good source rocks are present in the well. The best source rock is seen in the upper Spekk section, which contain a typically marine anoxic, oil-prone Type II kerogen. The lower Spekk section has higher TOC, but is more terrestrial in composition and thus more gas/condensate -prone. Also the coaly shales and coals of the Middle Jurassic have very good potential for mixed oil and gas. The well is however immature all through with a vitrinite reflectance of about 0.45 % Ro at TD. One FMT run was performed in the Rogn Formation sandstone. Six pressure points gave a water gradient of g/cm3. No fluid sample was taken. The well was permanently abandoned on 5 July as a dry hole. Testing No drill stem test was performed. Borekaks i OD Borekaksprøve, topp dybde Borekaksprøve, bunn dybde Borekaksprøve tilgjengelig YES Side 2 av 8

3 Side 3 av 8

4 Borekjerner i OD Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [m ] Total kjerneprøve lengde 18.8 Kjerneprøve tilgjengelig YES Kjernebilder m m m m Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL Side 4 av 8

5 810.0 DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL SWC STATO SWC STATO DC MILL DC MILL DC MILL SWC STATO DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL SWC STATO DC MILL DC MILL DC MILL DC MILL DC MILL SWC STATO DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL SWC STATO DC MILL DC MILL SWC STATO DC MILL Side 5 av 8

6 C APT C STATOIL C APT C APT C APT C STATOIL C APT C APT C APT C APT C APT C APT SWC STATOIL DC MILL SWC STATOIL DC MILL DC MILL SWC STATOIL SWC STATOI DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL DC MILL Litostratigrafi Top depth Lithostrat. unit 308 NORDLAND GP 486 ROGALAND GP 486 TANG FM 605 EGGA FM (INFORMAL) 728 SHETLAND GP 728 NISE FM 971 KVITNOS FM 1039 CROMER KNOLL GP 1039 LANGE FM 1100 LYR FM Side 6 av 8

7 1137 VIKING GP 1137 SPEKK FM 1159 ROGN FM 1252 SPEKK FM 1267 FANGST GP 1282 RED BEDS (INFORMAL) 1312 BASEMENT Spleisede logger navn format størrelse [KB] 2384 pdf 0.13 Geokjemisk informasjon navn format størrelse [KB] 2384_1 pdf 1.81 er - rapportert av utvinningstillatelsen (frigitt ihht til regelverk) navn 2384_6306_6_1_COMPLETION_REPORT_AND _LOG format størrelse [KB] pdf Logger Type logg Topp dyp Bunn dyp for for logg logg CBL VDL(MAC) DIFL MAC ZDL CN SL FMT GR MWD - DPR TF MWD - DPR TF MWD - DPR TF SWC GR VSP Side 7 av 8

8 Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde Brønnbane diam. [tommer] Brønnbane dyp Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR LOT SURF.COND. 13 3/ / LOT INTERM. 9 5/ / LOT OPEN HOLE / LOT Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] DUMMY DUMMY DUMMY DUMMY DUMMY DUMMY DUMMY DUMMY Dato, måling Side 8 av 8