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 28.10.2000 Boreslutt 24.11.2000 Frigitt dato 24.11.2002 Publiseringsdato 18.12.2002 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 36.0 351.0 Totalt målt dybde (MD) [m RKB] 2215.0 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 2215.0 80 LATE TRIASSIC GREY BEDS (INFORMAL) ED50 66 7' 29.32'' N 8 20' 57.39'' E Side 1 av 9
NS UTM 7334160.64 ØV UTM 470609.16 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 2000. Boulders were encountered from 387-420 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
Borekaksprøve, topp dybde Borekaksprøve, bunn dybde 1255.00 2215.00 Borekaksprøve tilgjengelig YES Borekjerner i OD Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet 1 1742.0 1756.1 [m ] 2 1757.0 1760.2 [m ] 3 1760.0 1763.7 [m ] 4 1765.0 1766.7 [m ] Total kjerneprøve lengde 70.3 Kjerneprøve tilgjengelig YES Kjernebilder 1742-1747m 1747-1752m 1752-1756m 1757-1761m 1761-1767m Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie 1260.0 DC GEOSTR 1275.0 DC GEOSTR 1285.0 DC GEOSTR 1295.0 DC GEOSTR 1320.0 DC GEOSTR 1330.0 DC GEOSTR 1340.0 DC GEOSTR 1350.0 DC GEOSTR 1360.0 DC GEOSTR Side 3 av 9
1370.0 DC GEOSTR 1380.0 DC GEOSTR 1402.0 SWC WESTLB 1409.0 DC GEOSTR 1418.0 DC GEOSTR 1427.0 DC GEOSTR 1435.0 SWC WESTLB 1445.0 DC GEOSTR 1457.0 DC GEOSTR 1460.0 SWC WESTLB 1469.0 DC GEOSTR 1478.0 DC GEOSTR 1490.0 DC GEOSTR 1502.0 DC GEOSTR 1514.0 DC GEOSTR 1523.0 DC GEOSTR 1532.0 DC GEOSTR 1546.5 SWC WESTLB 1550.5 SWC WESTLB 1580.0 DC GEOSTR 1584.0 SWC WESTLB 1589.0 DC GEOSTR 1592.0 DC GEOSTR 1595.0 DC GEOSTR 1601.0 DC GEOSTR 1604.0 DC GEOSTR 1607.0 DC GEOSTR 1613.0 DC GEOSTR 1614.0 SWC WESTLB 1615.0 SWC WESTLB 1616.0 DC GEOSTR 1625.0 DC GEOSTR 1625.0 SWC WESTLB 1628.0 DC GEOSTR 1631.0 DC GEOSTR 1636.0 SWC WESTLB 1637.0 DC GEOSTR 1640.0 DC GEOSTR 1643.0 DC GEOSTR 1646.0 DC GEOSTR Side 4 av 9
1652.0 DC GEOSTR 1652.0 SWC WESTLB 1658.0 DC GEOSTR 1660.0 SWC WESTLB 1664.0 SWC WESTLB 1667.0 DC GEOSTR 1668.0 SWC WESTLB 1671.0 SWC WESTLB 1676.0 DC GEOSTR 1683.0 SWC WESTLB 1687.0 SWC WESTLB 1691.0 DC GEOSTR 1697.0 SWC WESTLB 1700.0 DC GEOSTR 1702.5 SWC WESTLB 1707.0 SWC WESTLB 1710.0 SWC WESTLB 1712.0 DC GEOSTR 1715.5 SWC WESTLB 1718.0 DC GEOSTR 1723.5 SWC WESTLB 1724.0 DC GEOSTR 1730.0 DC GEOSTR 1731.0 SWC WESTLB 1733.0 DC GEOSTR 1736.0 DC GEOSTR 1737.0 SWC WESTLB 1742.0 DC GEOSTR 1742.1 C WESTLB 1742.5 C WESTLB 1742.6 C WESTLB 1742.9 C WESTLB 1743.4 C WESTLB 1744.3 C WESTLB 1745.2 C WESTLB 1745.6 C WESTLB 1745.6 C WESTLB 1751.2 C WESTLB 1755.9 C WESTLB 1758.4 C WESTLB Side 5 av 9
1760.0 C WESTLB 1760.3 C WESTLB 1760.8 C WESTLB 1761.6 C WESTLB 1763.0 C WESTLB 1763.2 C WESTLB 1766.1 C WESTLB 1769.0 DC GEOSTR 1776.0 SWC WESTLB 1784.0 DC GEOSTR 1787.0 DC GEOSTR 1794.5 SWC WESTLB 1798.0 SWC WESTLB 1808.0 DC GEOSTR 1811.0 DC GEOSTR 1815.5 SWC WESTLB 1820.0 DC GEOSTR 1826.0 DC GEOSTR 1832.0 DC GEOSTR 1841.0 SWC WESTLB 1847.0 DC GEOSTR 1853.0 DC GEOSTR 1862.0 DC GEOSTR 1871.0 DC GEOSTR 1878.0 SWC WESTLB 1886.0 DC GEOSTR 1901.0 DC GEOSTR 1907.0 DC GEOSTR 1922.0 DC GEOSTR 1937.0 DC GEOSTR 1944.5 SWC WESTLB 1949.0 DC GEOSTR 1955.0 DC GEOSTR 1961.0 DC GEOSTR 1970.0 DC GEOSTR 1976.0 DC GEOSTR 1988.0 DC GEOSTR 1997.0 DC GEOSTR 2012.0 DC GEOSTR 2021.0 DC GEOSTR Side 6 av 9
2030.0 DC GEOSTR 2039.0 DC GEOSTR 2045.0 DC GEOSTR 2075.0 DC GEOSTR 2084.0 DC GEOSTR 2093.0 SWC WESTLB 2105.0 SWC WESTLB 2111.0 DC GEOSTR 2127.0 SWC WESTLB 2135.0 DC GEOSTR 2144.0 DC GEOSTR 2153.0 DC GEOSTR 2171.0 DC GEOSTR 2192.0 DC GEOSTR 2213.0 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
Dokument navn Dokument format Dokument størrelse [KB] 4189 pdf 0.27 Geokjemisk informasjon Dokument navn Dokument format Dokument størrelse [KB] 4189_1 pdf 1.93 4189_2 pdf 1.83 4189_3 pdf 0.78 Logger Type logg Topp dyp Bunn dyp for for logg logg CMR ESC GR 1550 1570 CMR ESC GR 1660 1875 CST GR 1402 2206 FMI DSI GR 500 2215 MDT GR 1560 2175 MWD - MPR LITE 450 2215 PEX HALS HNGS 1249 2215 VSP GR 500 2215 Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde Brønnbane diam. [tommer] Brønnbane dyp Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR 30 447.0 36 447.0 0.00 LOT INTERM. 9 5/8 1249.0 12 1/4 1249.0 1.52 LOT OPEN HOLE 2215.0 8 1/2 2215.0 0.00 LOT Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] 409 1.03 SEAWATER/BENT. 417 1.03 12.0 SEAWATER/BENT. Dato, måling Side 8 av 9
450 1.03 12.0 SEAWATER/BENT. 1101 1.03 12.0 SEAWATER/BENT. 1254 1.03 12.0 SEAWATER/BENT. 1470 1.26 18.0 GLYDRILL 1517 1.25 18.0 GLYDRILL 1742 1.25 19.0 GLYDRILL 1757 1.25 18.0 GLYDRILL 1767 1.26 19.0 GLYDRILL 1846 1.26 18.0 GLYDRILL 1920 1.26 18.0 GLYDRILL 2215 1.26 17.0 GLYDRILL Side 9 av 9