Generell informasjon Brønnbane navn 15/9-1 Type Formål Status Faktakart i nytt vindu Hovedområde Felt Funn EXPLORATION APPRAISAL P&A lenke NORTH SEA Brønn navn 15/9-1 SLEIPNER VEST 15/6-3 SLEIPNER VEST Seismisk lokalisering Line 610-402 & Sp 721 Boret i utvinningstillatelse 046 Boreoperatør Boretillatelse 171-L Boreinnretning ROSS RIG (1) Bore dager 96 Borestart 24.02.1977 Boreslutt 30.05.1977 Frigitt dato 30.05.1979 Publiseringsdato 11.02.2005 Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane Den norske stats oljeselskap a.s WILDCAT NO OIL/GAS NO 1. nivå med hydrokarboner, alder MIDDLE JURASSIC 1. nivå med hydrokarboner, formasjon HUGIN FM 2. nivå med hydrokarboner, alder MIDDLE JURASSIC 2. nivå med hydrokarboner, formasjon Avstand, boredekk - midlere havflate Vanndybde ved midlere havflate SLEIPNER FM 25.0 106.0 Totalt målt dybde (MD) [m RKB] 3734.0 Totalt vertikalt dybde (TVD) [m RKB] 3733.0 Maks inklinasjon [ ] 3.75 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder 96 LATE TRIASSIC Side 1 av 12
Eldste penetrerte formasjon SKAGERRAK FM Geodetisk datum ED50 NS grader 58 28' 19'' N ØV grader 1 45' 11.76'' E NS UTM 6482077.91 ØV UTM 427277.67 UTM sone 31 NPDID for brønnbanen 322 Brønnhistorie Side 2 av 12
General Well 15/9-1 is located in the Sleipner Field. It was drilled on a seismic structure in order to evaluate the Dogger sandstone (Hugin and Sleipner Formations) of Middle Jurassic age. Operations and results Wildcat well 15/9-1 was spudded with the semi-submersible installation Ross Rig on 24 February 1977 and drilled to TD at 3734 m in the Late Triassic Skagerrak Formation. Severe weather occurred on 31 March, at 3539 m, when the drill string was hung off in the wellhead and the lower marine package disconnected. Drilling commenced on 2 April. When washing/reaming back to TD at 3675 m with a bit to open up the rat hole the pipe stuck at 3647m. Jarring/fishing action was unsuccessful and the string was backed off at 3507 m. The hole was then plugged back, sidetracked and drilled to TD. The well was drilled with seawater and hi-vis pills to 415.5 m and with a seawater/conditioned bentonite/spersene mud system from 415.5 m to TD. Top of the Dogger sandstone (Hugin Formation) was encountered at 3530 m. Log evaluation gave a net productive pay of 56 m, of which 38 m was gas bearing and 18 m was oil bearing. Lowest producible hydrocarbon depth was top of coal bed at 3672 m. Good shows were recorded on cuttings in the interval 3633 m to 3687 m, and in porous sandstones on cores from 3545 m to 3667 m. The Jurassic sandstone was cored in nine cores between 3521 m and 3675.5 m. RFT fluid samples were taken at 9 depths in the interval 3525.5 m to 3701 m. Most of them recovered traces of condensate or oil together with mud filtrate and gas. Only three samples recovered measurable quantities of fluid hydrocarbons: 3528.8 m (5-15 ml condensate), 3596.5 m (500 ml condensate), and 3621 m (5-15 ml oil). The well was permanently abandoned on 30 May 1977 as an oil and gas appraisal. Testing Two DST's were performed. DST 1 perforated the interval 3660 m to 3655 m and flowed 1330 STBOPD (211.5 Sm3 oil /day) and 1420000 SCF/D (40210 Sm3 gas/day). This gives a GOR of 1070 SCF/STB (191 Sm3/Sm3). The gas gravity was 0.738 (air = 1), and oil gravity was 26 API. Foam problems made it difficult to get reliable separator data: oil rates are probably maximum rates and GOR could thus be substantially higher. DST 2 perforated 3602 m to 3607 m and flowed 812 STBOPD (129.1 Sm3 oil/day) and 26000000 SCF/D (7362400 Sm3 gas/day). This gives a GOR of 32000 SCF/STB (5700 Sm3/Sm3). The gas gravity was 0.704 (air = 1) and oil gravity was 45.5 API. Borekaks i OD Borekaksprøve, topp dybde Borekaksprøve, bunn dybde 170.00 3734.00 Borekaksprøve tilgjengelig YES Borekjerner i OD Side 3 av 12
Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet 1 3521.0 3539.3 [m ] 2 3539.3 3557.5 [m ] 3 3557.5 3567.7 [m ] 4 3570.0 3584.5 [m ] 5 3587.8 3602.3 [m ] 6 3603.1 3621.3 [m ] 7 3621.3 3639.1 [m ] 8 3639.1 3657.4 [m ] 9 3657.4 3675.5 [m ] Total kjerneprøve lengde 153.7 Kjerneprøve tilgjengelig YES Kjernebilder 3539-3539m 3536-3538m 3534-3536m 3531-3534m 3529-3531m 3526-3529m 3523-3526m 3521-3523m 3555-3556m 3552-3555m 3550-3552m 3547-3550m 3545-3547m 3543-3545m 3541-3543m Side 4 av 12
3539-3541m 3566-3567m 3563-3566m 3561-3563m 3559-3561m 3557-3559m 3556-3557m 3584-3585m 3581-3584m 3579-3581m 3577-3579m 3574-3577m 3572-3574m 3569-3572m 3567-3569m 3601-3603m 3599-3601m 3596-3599m 3594-3596m 3592-3594m 3589-3592m 3587-3589m 3586-3587m 3619-2621m 3617-3619m 3615-3617m 3612-3615m 3610-3612m 3608-3610m 3605-3608m Side 5 av 12
3603-3605m 3636-3639m 3633-3636m 3631-3633m 3629-3631m 3626-3629m 3624-3626m 3621-3624m 3649-3652m 3647-3649m 3644-3647m 3641-3644m 3639-3641m 3655-3657m 3652-3655m 3660-3662m 3657-3660m 3665-3668m 3662-3665m 3668-3670m 3670-3673m 3673-3675m Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie 1640.0 DC RRI 1670.0 DC RRI 1700.0 DC RRI Side 6 av 12
1730.0 DC RRI 1760.0 DC RRI 1790.0 DC RRI 1810.0 DC RRI 1820.0 DC RRI 1860.0 DC RRI 1870.0 DC RRI 1890.0 DC RRI 1910.0 DC RRI 1920.0 DC RRI 1940.0 DC RRI 1960.0 DC RRI 2000.0 DC RRI 2020.0 DC RRI 2040.0 DC RRI 2060.0 DC RRI 2070.0 DC RRI 2140.0 DC RRI 2160.0 DC RRI 2180.0 DC RRI 2200.0 DC RRI 2220.0 DC RRI 2230.0 DC RRI 2350.0 DC RRI 2362.0 DC RRI 2380.0 DC RRI 2395.0 DC RRI 2410.0 SWC OD 2425.0 DC RRI 2440.0 DC RRI 2455.0 DC RRI 2470.0 DC RRI 2479.0 DC RRI 2506.0 DC RRI 2521.0 DC RRI 2536.0 DC RRI 2551.0 DC RRI 2566.0 DC RRI 2581.0 DC RRI 2596.0 DC RRI Side 7 av 12
2614.0 DC RRI 2620.0 DC RRI 2623.0 DC RRI 2647.0 DC RRI 2656.0 DC RRI 2665.0 DC RRI 2674.0 DC RRI 2683.0 DC RRI 2692.0 DC RRI 2701.0 DC RRI 2710.0 DC RRI 2719.0 DC RRI 2737.0 DC RRI 2746.0 DC RRI 3587.0 SWC OD Oljeprøver i OD Test type Flaske nummer Topp dyp MD Bunn dyp MD Væske type Test tidspunkt Prøver tilgjengelig DST TEST1 0.00 0.00 17.05.1977-07:00 DST TEST2 0.00 0.00 23.05.1977-00:00 YES YES Litostratigrafi Top depth Lithostrat. unit 131 NORDLAND GP 824 UTSIRA FM 1065 HORDALAND GP 1185 SKADE FM 1266 NO FORMAL NAME 1808 GRID FM 2131 NO FORMAL NAME 2227 ROGALAND GP 2227 BALDER FM 2290 SELE FM 2357 LISTA FM 2391 HEIMDAL FM Side 8 av 12
2611 LISTA FM 2625 TY FM 2732 VÅLE FM 2743 SHETLAND GP 2743 EKOFISK FM 2783 TOR FM 2955 HOD FM 3006 BLODØKS FM 3140 SVARTE FM 3300 CROMER KNOLL GP 3300 RØDBY FM 3327 SOLA FM 3345 ÅSGARD FM 3377 VIKING GP 3377 DRAUPNE FM 3485 HEATHER FM 3530 VESTLAND GP 3530 HUGIN FM 3616 SLEIPNER FM 3701 NO GROUP DEFINED 3701 SKAGERRAK FM Spleisede logger Dokument navn Dokument format Dokument størrelse [KB] 322 pdf 0.49 Dokumenter - eldre OD WDSS rapporter og andre relaterte dokumenter Dokument navn Dokument format Dokument størrelse [KB] 322_01_WDSS_General_Information pdf 0.25 Dokumenter - rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navn Dokument format Dokument størrelse [KB] 322_01_Completion_Report pdf 25.68 322_02_Completion_log pdf 2.29 322_03_ Analysis_of_complex_lithology pdf 11.61 Side 9 av 12
322_04_ Biostratigraphic_report pdf 2.30 322_05_Biostratigraphy_300-3755 pdf 3.10 322_06_Biostratigraphy_of_core_chip_sample s pdf 6.71 322_07_Capillary_pressure_curves pdf 3.05 322_08_Composition_and_reservoir_quality_o f_jurassic_dogger pdf 17.54 322_09_Core_1-9 pdf 4.88 322_10_Core_report pdf 1.37 322_11_Description_of_shows_core_ 8_9 pdf 0.31 322_12_Elementananalyse_på_karbonatseme nterte_lag 322_13_Formation_factor_tests_Statoil_petro physics_lap. 322_14_Geochemical_analysis_of_additional_ core_extracts 322_15_Geochemical_analysis_of_core_&_oil_ samples 322_16_Hydrocarbon_report_DST_1_Subface _oil_dst_2_surfaces 322_17_Oil_to_rock_correlation_caried_out_o n_samples_of_oil pdf 0.45 pdf 3.04 pdf 7.27 pdf 8.94 pdf 1.66 pdf 1.80 322_18_Paleontological_study pdf 0.49 322_19_Palynologi_3350-3732m pdf 0.33 322_20_Petrophysical_evaluation pdf 11.12 322_21_Preesure_build_up_applied_on_RFT pdf 4.82 322_22_PVT-simulation_&_fluid_data pdf 0.94 322_23_Rapport_PVT-simulering pdf 1.28 322_24_Reservoir_fluid_study_DST_1 pdf 2.76 322_25_Reservoir_fluid_study pdf 2.14 322_26_Source_rock_crude_oil pdf 1.08 322_27_Source_rock_evaluation pdf 3.28 322_28_Abnormal_pressure_prediction_by_us e_of_well_logs pdf 2.03 Borestrengtester (DST) Test nummer Fra dybde MD Til dybde MD Reduksjonsven til størrelse [mm] 1.0 3655 3660 19.0 2.0 3602 3607 25.0 Side 10 av 12
Test nummer Endelig avstengningstrykk [MPa] Endelig strømningstrykk [MPa] Bunnhullstrykk [MPa] Borehullstempera tur [ C] 1.0 2.0 Test nummer Olje produksjon [Sm3/dag] Gass produksjon [Sm3/dag] Oljetetthet [g/cm3] Gasstyngde rel. luft GOR [m3/m3 ] 1.0 211 40210 0.890 0.738 191 2.0 129 736242 0.780 0.703 5700 Logger Type logg Topp dyp Bunn dyp for for logg logg CBL VDL CCL GR 400 1203 CBL VDL CCL GR 1450 2842 CBL VDL CCL GR 2710 3709 CPI 3499 3725 FDC CNL GR 397 3736 HDT 2846 3736 ISF SONIC 397 3735 RFT 2856 3690 SONIC 131 402 VELOCITY 620 3734 Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde Brønnbane diam. [tommer] Brønnbane dyp Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR 30 168.0 36 170.0 0.00 LOT SURF.COND. 20 397.0 26 400.0 0.00 LOT INTERM. 13 3/8 1203.0 17 1/2 1205.0 0.00 LOT INTERM. 9 5/8 2849.0 12 1/4 2850.0 0.00 LOT LINER 7 3734.0 8 1/2 3734.0 0.00 LOT Boreslam Side 11 av 12
Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] 352 1.05 40.0 26.0 spud mud 1190 1.06 39.0 24.0 water based 2280 1.22 49.0 11.0 water based 2867 1.24 50.0 14.0 water based 3518 1.41 57.0 11.0 water based 3733 1.42 50.0 12.0 water based Dato, måling Side 12 av 12