ODs Faktasider. Brønnbane / Leting. Generell informasjon. Side 1 av 7. Utskriftstidspunkt: :14

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1 Generell informasjon Side 1 av 7

2 Side 2 av 7

3 Brønnbane navn 16/2-1 Type Formål Status Faktakart i nytt vindu Hovedområde EXPLORATION WILDCAT P&A lenke NORTH SEA Brønn navn 16/2-1 Seismisk lokalisering C 309 C SP: Boret i utvinningstillatelse 001 Boreoperatør Boretillatelse 3-L Boreinnretning Bore dager 30 Esso Exploration and Production Norway A/S OCEAN TRAVELER Borestart Boreslutt Frigitt dato Publiseringsdato Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane Avstand, boredekk - midlere havflate [m] Vanndybde ved midlere havflate [m] WILDCAT NO OIL SHOWS NO Totalt målt dybde (MD) [m RKB] Totalt vertikalt dybde (TVD) [m RKB] Maks inklinasjon [ ] 1.5 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader PRE-DEVONIAN BASEMENT ED ' 35.19'' N 2 21' 25.77'' E NS UTM [m] ØV UTM [m] UTM sone 31 NPDID for brønnbanen 144 Side 3 av 7

4 Brønnhistorie General Well 16/2-1 is located on the very western part of the Utsira High in the central part of the Vestland Arch. The Utsira High is a large, flat, fault bounded basement feature. The objective of this early well in the North Sea was: "To test the hydrocarbon potential of the sedimentary section; investigate the lithology and sequence in this portion of the North Sea basin; and to partially fulfil Esso's drilling obligation to the Norwegian Government incurred on behalf of the Licences." Operations and results Wildcat well 16/2-1 was spudded with the semi-submersible installation Ocean Traveler on 11 July 1967 and drilled to TD at 1906 m, 33 m into basement rock. There were no noteworthy drilling problems encountered while drilling. Initial drilling from the sea floor to 381 m was with seawater and gel without casing. Returns were to the sea floor. Below 381 m to total depth of 1906 m, a seawater slurry with gel, CMC, Spersene, XP-20, Caustic Soda, Barite, and 0-10% diesel oil was used. Oil shows were seen on cores in tight Cretaceous carbonate rocks in the Tor Formation. The shows were strong and continuous from top Tor Formation down to 1776 m, and then became patchy. These rocks were too impermeable to justify further tests in this well. Weak shows were seen also in a thin Oligocene sand from 1256 m to 1263 m and in Eocene mudstones from 1631 m to 1637 m, Balder Formation. Dead oil/tar was observed in fractures in the basement rock. Five cores were cut from m to m in the Tor Formation chalk and two more cores were cut from m to m in the basement. Four Formation Interval Tests (FIT) were performed at m, m, m, and at m. The tests, one in Early Tertiary shales and three in Late Cretaceous carbonates, did not show any hydrocarbons. The well was permanently abandoned on 9 August 1967 as a well with shows. Testing No drill stem test was performed Borekjerner i OD Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [ft ] [ft ] [ft ] [ft ] [ft ] [ft ] [ft ] Side 4 av 7

5 Total kjerneprøve lengde [m] 85.3 Kjerneprøve tilgjengelig YES Litostratigrafi Top depth [m] Lithostrat. unit 139 NORDLAND GP 797 UTSIRA FM 845 NO FORMAL NAME 939 HORDALAND GP 939 SKADE FM 950 SKADE FM 1154 NO FORMAL NAME 1625 ROGALAND GP 1625 BALDER FM 1645 SELE FM 1669 LISTA FM 1732 SHETLAND GP 1732 TOR FM 1838 HOD FM 1850 CROMER KNOLL GP 1850 RØDBY FM 1858 SOLA FM 1873 BASEMENT Spleisede logger navn 144 pdf 0.27 Geokjemisk informasjon navn 144_1 pdf 1.26 er - eldre OD WDSS rapporter og andre relaterte dokumenter Side 5 av 7

6 navn 144_01_WDSS_General_Inion pdf 0.18 er - rapportert av utvinningstillatelsen (frigitt ihht til regelverk) navn 144_16_2_1_COMPLETION_LOG pdf _16_2_1_COMPLETION_REPORT pdf 3.70 er - OD publikasjoner navn 144_01_NPD_Paper_No.3_Lithology Well_16 _2_1 144_02_NPD_Paper_No.3_Interpreted_Litholo gy_log Well_16_2_1 pdf pdf Logger Type logg Topp dyp Bunn dyp for for logg [m] logg [m] BHC SONIC GR CDM FDC IES LL MLL 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 LOT INTERM. 13 3/ / LOT INTERM. 9 5/ / LOT OPEN HOLE / LOT Side 6 av 7

7 Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD [m] slam [g/cm3] slam [mpa.s] [Pa] sea water sea water/g Dato, måling Side 7 av 7