ODs Faktasider. Brønnbane / Leting. Generell informasjon. Brønnbane navn 6608/11-2 EXPLORATION. Faktakart i nytt vindu. lenke

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1 Generell informasjon Brønnbane navn 6608/11-2 Type Formål Status Faktakart i nytt vindu Hovedområde Funn EXPLORATION WILDCAT P&A lenke NORWEGIAN SEA 6608/11-2 (Falk) Brønn navn 6608/11-2 Seismisk lokalisering Boret i utvinningstillatelse 128 Boreoperatør Boretillatelse 988-L Boreinnretning Bore dager 28 CROSSLINE 3066 & INLINE 2248 ST9301 Den norske stats oljeselskap a.s WEST NAVION Borestart Boreslutt Frigitt dato Publiseringsdato Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane WILDCAT NO OIL YES 1. nivå med hydrokarboner, alder EARLY JURASSIC 1. nivå med hydrokarboner, formasjon Avstand, boredekk - midlere havflate Vanndybde ved midlere havflate ÅRE FM Totalt målt dybde (MD) [m RKB] Totalt vertikalt dybde (TVD) [m RKB] Maks inklinasjon [ ] 3.3 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader LATE TRIASSIC GREY BEDS (INFORMAL) ED ' 29.32'' N 8 20' 57.39'' E Side 1 av 9

2 NS UTM ØV UTM UTM sone 32 NPDID for brønnbanen 4189 Brønnhistorie General Well 6608/11-2 is located in the NE part of the Dønna Terrace, NW of the Nordland Ridge. The target prospect Falk is located at the height trending NE from the Norne Field via the Svale discovery. It is defined on a gently dipping fault block, enclosed by faults on three sides and open to the SW. The main objective of well 6608/11-2 was to prove hydrocarbons in the sandstones in the Melke and the Åre Formations in the Falk prospect. Operations and results Wildcat well 6608/11-2 was spudded with the drill ship "West Navion" on 28 October Boulders were encountered from m. Due to boulders the ROP was very low and inclination built uncontrolled to above 2.5 degrees. The well was respudded 15 m to the west and drilled with reduced WOB. Even here boulders caused a low ROP. Especially a very hard boulder bed around 397 m MD in both holes caused very low progress and very high, erratic torque readings. The second spud was successful and the well was drilled to a total depth of 2215 m in the Late Triassic Grey Beds. No shallow gas was observed by the ROV at the wellhead. The well was drilled with seawater and bentonite down to 1254 m and with water based "GLYDRIL" mud (4.5-5% glycol) from 1254 m to TD. Several good reservoir zones were penetrated in the Åre Formation and the Triassic Grey beds. A silty Melke Formation was also encountered, but did not have the same reservoir quality as the Åre and Triassic sequences. The reservoir sequence at the top of the Åre Formation proved to be oil bearing. The reservoirs in the Melke Formation, the lower part of Åre Formation and the Grey beds Formation were water wet. This was verified both by shows on cuttings and cores, logs, samples and laboratory studies of the cores. The oil-water contact was not encountered in the well. A thin Cretaceous sequence, which was not prognosed, was encountered in the well. MDT sampling gave a water sample from the Melke Formation (1687 m), three hydrocarbon samples from the Åre Formation (one from 1746 m and two from 1747 m), and a water sample from the Åre Formation (1773 m). The Melke sample was contaminated with 30% drilling mud, the other samples were of good quality. The oil bearing reservoir zone was cored. The well was plugged and abandoned as an oil discovery on 24 November 2000 Testing No drill stem test was performed Borekaks i OD Side 2 av 9

3 Borekaksprøve, topp dybde Borekaksprøve, bunn dybde Borekaksprøve tilgjengelig YES Borekjerner i OD Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [m ] [m ] [m ] [m ] Total kjerneprøve lengde 70.3 Kjerneprøve tilgjengelig YES Kjernebilder m m m m m Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR Side 3 av 9

4 DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR Side 4 av 9

5 DC GEOSTR SWC WESTLB DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR SWC WESTLB DC GEOSTR SWC WESTLB SWC WESTLB SWC WESTLB DC GEOSTR SWC WESTLB DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB Side 5 av 9

6 C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB C WESTLB DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR Side 6 av 9

7 DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR SWC WESTLB SWC WESTLB DC GEOSTR SWC WESTLB DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR DC GEOSTR Litostratigrafi Top depth Lithostrat. unit 387 NORDLAND GP 387 NAUST FM 1334 KAI FM 1408 HORDALAND GP 1408 BRYGGE FM 1526 ROGALAND GP 1526 TARE FM 1583 CROMER KNOLL GP 1583 LANGE FM 1614 VIKING GP 1614 MELKE FM 1705 FANGST GP 1705 NOT FM 1736 BÅT GP 1736 ÅRE FM 2064 GREY BEDS (INFORMAL) Spleisede logger Side 7 av 9

8 Dokument navn Dokument format Dokument størrelse [KB] 4189 pdf 0.27 Geokjemisk informasjon Dokument navn Dokument format Dokument størrelse [KB] 4189_1 pdf _2 pdf _3 pdf 0.78 Logger Type logg Topp dyp Bunn dyp for for logg logg CMR ESC GR CMR ESC GR CST GR FMI DSI GR MDT GR MWD - MPR LITE PEX HALS HNGS VSP GR Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde Brønnbane diam. [tommer] Brønnbane dyp Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR LOT INTERM. 9 5/ / LOT OPEN HOLE / LOT Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] SEAWATER/BENT SEAWATER/BENT. Dato, måling Side 8 av 9

9 SEAWATER/BENT SEAWATER/BENT SEAWATER/BENT GLYDRILL GLYDRILL GLYDRILL GLYDRILL GLYDRILL GLYDRILL GLYDRILL GLYDRILL Side 9 av 9