7119/9-1
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Generell informasjon
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Brønnhistorie
GeneralExploration well 7119/9-1 is located on the Ringvassøy ? Loppa Fault Complex west of the Snøhvit Field area. The well was designed to test a narrow horst, elongated in a NE-SW direction. The horst brings the main prospect, the Middle to Lower Jurassic Sandstones up to a depth of about 2700 m, in a position surrounded with Cretaceous Shale. The well is located close to the top of the horst. This target was found gas bearing in the two nearest wells: 7119/12-3 to the south, located in the same structural trend, and 7120/7-1, located higher up toward the Hammerfest Basin to the south-east.Operations and resultsThe well was spudded with the semi-submersible installation Byford Dolphin on 28 June 1984 and drilled to TD at 3248 m in Late Triassic rocks. The well took a kick at 2744 m where a pit gain of 2 m3 was observed. Some technical problems occurred on the rig during a wiper trip before final logging of the 8 1/2" hole. During logging of the same sequence the RFT tool got stuck twice but was recovered in both cases. The well was drilled using water-based mud.The well drilled through mainly claystone and shale formations down to top Jurassic at 2702 m. The lower Cretaceous Kolmule Formation was found silty and sandy between 2400 m and 2450 m. Top Jurassic Hekkingen Formation was penetrated at 2702 m and contained two good reservoir sections, a Middle ? Early reservoir and a deeper Pliensbachian reservoir. Above the upper reservoir zone 46 m of Late Jurassic shale was drilled. This sequence consisted of an upper Volgian ? Kimmeridgian sequence and a lower Oxfordian-Callovian shale sequence separated by an Oxfordian unconformity near 2719 m (more accurate depth cannot be proven due to logging problems in this section of the well). The upper Jurassic sandstone reservoir (Stø Formation) was penetrated at 2748 meters. The reservoir was well developed with a 120 meter gross thickness. The two cores cut near the top of the reservoir between 2749 m and 2783 m provided good petro-physical characteristics in the upper part (average porosity of 15% in the 15 upper meters), dropping rapidly in the second part of core 2 (average porosity about 8%). The reservoirs were found water bearing with a very high salinity and with high formation pressure (a 1.49 - equivalent mud weight -formation pressure was encountered at the top of the reservoir). The lower Pliensbachian reservoir (Tubåen Formation) was encountered at 3027 m with 158 m gross thickness. This zone was also water bearing and high pressured.The kick at 2744 m, just above the upper reservoir zone, was accompanied by up to 14% background gas (C1 to C4) when circulating out. Fluorescence cuts, very pale to whitish, were recorded on the cores from the upper reservoir zone as well as on the sandstone cuttings between 3030 m and 3125 m. In addition residual oil gave direct weak, light brown, fluorescences on cuttings from the lower reservoir zone, mainly light brown and greenish between 3030 m and 3055 m; weaker spots were seen between 3055 m and 3125 m.Two conventional cores were cut from 2745 m to 2779 m loggers depth (2749 m to 2783 m drillers depth). Three RFT samplings were attempted. A sample at 2748.5 m recovered 3.2 litres of clear formation water from the 1-gallon chamber. The water had a density of 1.136 g/ml, a pH of 5.62, and a salinity of 213.12 g/l. Two other samples at 3096 m and 3034 m were attempted in zones that provided hydrocarbon shows while drilling. Only one of these (3096 m) recovered fluid: mud and filtrate.The well was permanently abandoned on 25 September as a dry hole.TestingNo drill stem test was performed -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]299.503243.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet12745.02764.9[m ]22763.02779.3[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]36.2Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie720.0[m]DCOD730.0[m]DCOD750.0[m]DCOD760.0[m]DCOD780.0[m]DCOD790.0[m]DCOD845.0[m]DCOD850.0[m]DCOD860.0[m]DCOD890.0[m]DCOD900.0[m]DCOD920.0[m]DCOD930.0[m]DCOD950.0[m]DCOD960.0[m]DCOD980.0[m]DCOD1000.0[m]DCOD1030.0[m]DCOD1060.0[m]DCOD1070.0[m]DCOD1090.0[m]DCOD1100.0[m]DCOD1270.0[m]DCOD1310.0[m]DCOD1330.0[m]DCOD1350.0[m]DCOD1370.0[m]DCOD1380.0[m]DCOD1390.0[m]DCOD1400.0[m]DCOD1410.0[m]DCOD1420.0[m]DCOD1430.0[m]DCOD1440.0[m]DCOD1450.0[m]DCOD1460.0[m]DCOD1470.0[m]DCOD1480.0[m]DCOD1490.0[m]DCOD1500.0[m]DCOD1510.0[m]DCOD1570.0[m]DCOD1600.0[m]DCOD1620.0[m]DCOD1660.0[m]DCOD1700.0[m]DCOD1720.0[m]DCOD1740.0[m]DCOD1760.0[m]DCOD1765.0[m]DCOD1780.0[m]DCOD1800.0[m]DCOD1820.0[m]DCOD1840.0[m]DCOD1854.0[m]SWCOD1860.0[m]DCOD1880.0[m]DCOD1900.0[m]DCOD1920.0[m]DCOD1940.0[m]DCOD1960.0[m]DCOD1980.0[m]DCOD2000.0[m]DCOD2020.0[m]DCOD2040.0[m]DCOD2055.0[m]DCOD2060.0[m]DCOD2075.0[m]DCOD2080.0[m]DCOD2095.0[m]DCOD2100.0[m]DCOD2120.0[m]DCOD2130.0[m]DCOD2150.0[m]DCOD2169.0[m]SWCOD2170.0[m]DCOD2195.0[m]DCOD2213.0[m]DCOD2230.0[m]DCOD2250.0[m]DCOD2250.0[m]DCOD2270.0[m]DCOD2290.0[m]DCOD2310.0[m]DCOD2330.0[m]DCOD2335.0[m]SWCOD2350.0[m]DCOD2370.0[m]DCOD2390.0[m]DCOD2410.0[m]DCOD2430.0[m]DCOD2450.0[m]DCOD2470.0[m]DCOD2490.0[m]DCOD2510.0[m]DCOD2530.0[m]DCOD2550.0[m]DCOD2570.0[m]DCOD2590.0[m]DCOD2610.0[m]DCOD2610.0[m]DCOD2630.0[m]DCOD2637.0[m]SWCOD2640.0[m]DCOD2650.0[m]DCOD2660.0[m]DCOD2670.0[m]DCOD2680.0[m]DCOD2690.0[m]DCOD2700.0[m]DCOD2710.0[m]DCOD2720.0[m]DCOD2730.0[m]DCOD2740.0[m]DCOD2780.0[m]DCOD2790.0[m]DCOD2800.0[m]DCOD -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligRFTRFT 12748.000.0014.09.1984 - 00:00YESRFTRFT 23096.000.0015.09.1985 - 00:00YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet226101510151447144715851585255026482702271927482748286830273185 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.52 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf0.35 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.23pdf0.29 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf11.70 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR4892724CST15492730CST27413230HDT7551553HRT7563248ISF LSS GR SP2053248LDT CAL GR2952721LDT CNL CAL GR27243248NGT15403248RFT27483202RFT30340RFT30960SHDT15493248VSP3003248 -
Foringsrør og formasjonsstyrketester
Foringsrør og formasjonsstyrketester Type utforingUtforing diam.
[tommer]Utforing dybde
[m]Brønnbane diam.
[tommer]Brønnbane dyp
[m]LOT/FIT slam eqv.
[g/cm3]Type formasjonstestCONDUCTOR30296.036297.01.10LOTSURF.COND.20756.026770.01.70LOTINTERM.13 3/81549.017 1/21563.01.73LOTINTERM.9 5/82724.012 1/42732.02.04LOTOPEN HOLE3243.08 1/23243.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling2301.07WATER BASED03.07.19842961.06WATER BASED03.07.19842971.07WATER BASED03.07.19842991.0424.05.8WATER BASED03.07.19844001.0624.09.8WATER BASED04.07.19845301.0711.05.9WATER BASED05.07.19847701.1215.010.7WATER BASED06.07.19847701.1419.017.1WATER BASED10.07.19847701.2626.07.8WATER BASED10.07.19847701.1420.014.7WATER BASED10.07.19847701.1419.017.1WATER BASED10.07.19847701.1520.09.3WATER BASED10.07.19847701.2626.07.8WATER BASED11.07.19847701.26WATER BASED12.07.19847701.26WATER BASED16.07.19847701.1420.014.7WATER BASED10.07.19847701.1520.09.3WATER BASED10.07.19847701.2626.07.8WATER BASED10.07.19847701.2626.07.8WATER BASED11.07.19847701.26WATER BASED12.07.19847701.26WATER BASED16.07.19847731.1527.09.8WATER BASED16.07.19848761.1630.011.8WATER BASED16.07.198410301.1730.011.8WATER BASED16.07.198411791.1930.013.7WATER BASED17.07.198413001.1930.014.7WATER BASED18.07.198413031.58WATER BASED25.09.198413901.2027.09.8WATER BASED19.07.198414601.2026.011.7WATER BASED24.07.198415631.2438.014.7WATER BASED24.07.198415631.2438.014.7WATER BASED25.07.198415631.2438.014.7WATER BASED25.07.198415701.2629.06.3WATER BASED26.07.198416931.273.09.8WATER BASED30.07.198417821.2732.09.8WATER BASED30.07.198418171.2732.09.5WATER BASED30.07.198419011.2733.012.7WATER BASED30.07.198419381.2728.09.8WATER BASED30.07.198419881.2626.08.3WATER BASED01.08.198420531.2730.08.8WATER BASED01.08.198420671.2728.05.4WATER BASED03.08.198421281.2827.09.8WATER BASED06.08.198421621.2930.09.8WATER BASED06.08.198422121.2828.08.8WATER BASED06.08.198422321.2830.010.0WATER BASED06.08.198422671.2829.09.8WATER BASED07.08.198423231.2830.09.8WATER BASED08.08.198423701.2830.09.8WATER BASED09.08.198423871.2830.09.8WATER BASED13.08.198424171.2830.010.7WATER BASED13.08.198424461.2828.010.7WATER BASED14.08.198424981.2828.09.8WATER BASED14.08.198425811.3230.011.8WATER BASED14.08.198426221.3230.08.8WATER BASED15.08.198426271.58WATER BASED20.09.198426761.3430.011.8WATER BASED16.08.198426941.3432.011.8WATER BASED20.08.198427311.3432.011.8WATER BASED20.08.198427311.3632.08.8WATER BASED20.08.198427311.3932.010.8WATER BASED21.08.198427311.3932.010.8WATER BASED24.08.198427311.3632.08.8WATER BASED20.08.198427311.3932.010.8WATER BASED21.08.198427311.3932.010.8WATER BASED24.08.198427321.4228.08.8WATER BASED27.08.198427321.4330.06.8WATER BASED27.08.198427321.4224.07.8WATER BASED27.08.198427321.4026.07.8WATER BASED27.08.198427321.4228.08.8WATER BASED27.08.198427321.4224.07.8WATER BASED27.08.198427321.4330.06.8WATER BASED27.08.198427451.5540.08.8WATER BASED28.08.198427541.5650.010.0WATER BASED29.08.198427761.5658.011.8WATER BASED04.09.198427761.5658.011.8WATER BASED30.08.198427761.5658.011.8WATER BASED04.09.198427791.5658.011.8WATER BASED04.09.198428241.5640.08.8WATER BASED04.09.198428671.5642.08.8WATER BASED04.09.198429281.5642.010.8WATER BASED04.09.198429821.5748.09.8WATER BASED04.09.198430021.5748.010.8WATER BASED06.09.198430551.5744.07.8WATER BASED06.09.198430861.5745.09.8WATER BASED10.09.198431021.5740.07.8WATER BASED10.09.198431541.5746.010.8WATER BASED10.09.198431911.5748.010.8WATER BASED10.09.198432421.5851.010.8WATER BASED11.09.198432431.5947.010.8WATER BASED13.09.198432431.5946.09.8WATER BASED13.09.198432431.5942.06.5WATER BASED14.09.198432431.5942.06.5WATER BASED16.09.198432431.5855.012.3WATER BASED16.09.198432431.5855.012.3WATER BASED17.09.198432431.5854.012.3WATER BASED19.09.198432431.5946.09.8WATER BASED13.09.198432431.5942.06.5WATER BASED14.09.198432431.5942.06.5WATER BASED16.09.198432431.5855.012.3WATER BASED16.09.198432431.5855.012.3WATER BASED17.09.198432431.5854.012.3WATER BASED19.09.1984 -
Trykkplott
Trykkplott Porertrykksdataene kommer fra logging i brønnen hvis ingen annen kilde er oppgitt. I noen brønner der trykk ikke er logget, er det brukt informasjon fra formasjonstester eller brønnspark. Trykkdataene er rapportert inn til Oljedirektoratet og videre prosessert og kvalitetssikret av IHS Markit.Trykkplott Dokument navnDokument formatDokumentstørrelse [MB]pdf0.22