ODs Faktasider. Brønnbane / Leting. Generell informasjon. Brønnbane navn 15/9-1 EXPLORATION. Faktakart i nytt vindu. lenke

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1 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 & Sp 721 Boret i utvinningstillatelse 046 Boreoperatør Boretillatelse 171-L Boreinnretning ROSS RIG (1) Bore dager 96 Borestart Boreslutt Frigitt dato Publiseringsdato 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 Totalt målt dybde (MD) [m RKB] Totalt vertikalt dybde (TVD) [m RKB] Maks inklinasjon [ ] 3.75 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder 96 LATE TRIASSIC Side 1 av 12

2 Eldste penetrerte formasjon SKAGERRAK FM Geodetisk datum ED50 NS grader 58 28' 19'' N ØV grader 1 45' 11.76'' E NS UTM ØV UTM UTM sone 31 NPDID for brønnbanen 322 Brønnhistorie Side 2 av 12

3 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 m and with a seawater/conditioned bentonite/spersene mud system from 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 m. RFT fluid samples were taken at 9 depths in the interval 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: m (5-15 ml condensate), 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 SCF/D (40210 Sm3 gas/day). This gives a GOR of 1070 SCF/STB (191 Sm3/Sm3). The gas gravity was (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 SCF/D ( Sm3 gas/day). This gives a GOR of SCF/STB (5700 Sm3/Sm3). The gas gravity was (air = 1) and oil gravity was 45.5 API. Borekaks i OD Borekaksprøve, topp dybde Borekaksprøve, bunn dybde Borekaksprøve tilgjengelig YES Borekjerner i OD Side 3 av 12

4 Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [m ] [m ] [m ] [m ] [m ] [m ] [m ] [m ] [m ] Total kjerneprøve lengde Kjerneprøve tilgjengelig YES Kjernebilder m m m m m m m m m m m m m m m Side 4 av 12

5 m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m Side 5 av 12

6 m m m m m m m m m m m m m m m m m m m m m m Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie DC RRI DC RRI DC RRI Side 6 av 12

7 DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI SWC OD DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI Side 7 av 12

8 DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI DC RRI SWC OD Oljeprøver i OD Test type Flaske nummer Topp dyp MD Bunn dyp MD Væske type Test tidspunkt Prøver tilgjengelig DST TEST :00 DST TEST :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

9 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 _02_Completion_log pdf _03_ Analysis_of_complex_lithology pdf Side 9 av 12

10 322_04_ Biostratigraphic_report pdf _05_Biostratigraphy_ pdf _06_Biostratigraphy_of_core_chip_sample s pdf _07_Capillary_pressure_curves pdf _08_Composition_and_reservoir_quality_o f_jurassic_dogger pdf _09_Core_1-9 pdf _10_Core_report pdf _11_Description_of_shows_core_ 8_9 pdf _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 _18_Paleontological_study pdf _19_Palynologi_ m pdf _20_Petrophysical_evaluation pdf _21_Preesure_build_up_applied_on_RFT pdf _22_PVT-simulation_&_fluid_data pdf _23_Rapport_PVT-simulering pdf _24_Reservoir_fluid_study_DST_1 pdf _25_Reservoir_fluid_study pdf _26_Source_rock_crude_oil pdf _27_Source_rock_evaluation pdf _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] Side 10 av 12

11 Test nummer Endelig avstengningstrykk [MPa] Endelig strømningstrykk [MPa] Bunnhullstrykk [MPa] Borehullstempera tur [ C] Test nummer Olje produksjon [Sm3/dag] Gass produksjon [Sm3/dag] Oljetetthet [g/cm3] Gasstyngde rel. luft GOR [m3/m3 ] Logger Type logg Topp dyp Bunn dyp for for logg logg CBL VDL CCL GR CBL VDL CCL GR CBL VDL CCL GR CPI FDC CNL GR HDT ISF SONIC RFT SONIC VELOCITY 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 LOT INTERM. 13 3/ / LOT INTERM. 9 5/ / LOT LINER / LOT Boreslam Side 11 av 12

12 Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] spud mud water based water based water based water based water based Dato, måling Side 12 av 12