25/2-9
Eksport: PDF
-
Generell informasjon
-
Brønnhistorie
GeneralWell 25/2-9 was designed to drill an assumed top in the eastern part of the Frigg East Beta structure, one of the Frigg Satellites, discovered by well 25/2-1 in 1973. The main objects of this well was to reveal petrophysical characteristics in an area where development wells could be located, to appraise the gas column height and gas in place, to get static formation pressure in order to estimate communication with the main Frigg field, and to obtain cores from the upper part of the Frigg Formation and the Balder formation for static and dynamic petrophysical measurements. Prognosed depth of the Frigg Formation was 1922 m, and planned TD was 2450 m.Operations and resultsAppraisal well 25/2-9 was spudded with Golar Nor Offshore A/S semi-submersibel rig Nortrym on 14 June 1985 and completed 24 July 1985 at a depth of 2297 m in the Paleocene Balder Formation. At 2297 m 800 l/min of mud was lost due to a leakage between 13 3/4" casing and 20" casing. The 9 5/8" casing was set to 888 m and the well was gradually brought under control. During this operation a part of the under-reamer was lost into the hole, and fishing went on for two days.Top Frigg came in at 1935 m with hydrocarbons from 1935.9 m. Gas/oil contact was encountered at 1960 m, and an oil/water contact at 1972 m with brown oil stain on cuttings down to 2008 m. A total of 12 cores were cut with a total length of 214.25 m with 86% recovery. Ten cores were cut from 1939 m to 2145 m in the upper Frigg Formation, across the hydrocarbon bearing zone and all fluid contacts and two cores were cut from 2220 m to 2256 m in the tuffaceous Balder Formation. The cores consisted mainly of sands, more or less consolidated.The well was plugged and abandoned as an oil and gas discovery.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]200.002292.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11939.41957.0[m ]21959.61985.0[m ]31987.62013.0[m ]42015.32033.0[m ]52034.02036.8[m ]62060.82074.0[m ]82080.02103.3[m ]92107.02117.9[m ]112220.02236.9[m ]122238.22255.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]170.1Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
-
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet13744748396811041125193522232223225122562259226222692272 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.33 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.28pdf0.19 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDT135887CST00DISFL LSSS GR1972295HDT18802296LDT CNL GR AMS1972294RFT00SHDT18002296VSP1972295 -
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 formasjonstestCONDUCTOR30197.036202.00.00LOTINTERM.13 3/8987.017 1/21002.01.37LOTINTERM.9 5/82297.012 1/42297.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1981.06WATER BASED17.06.19852021.05WATER BASED17.06.19856021.06WATER BASED18.06.19859081.1028.011.0WATER BASED18.06.198510021.1928.020.0WATER BASED21.06.198510021.1028.019.0WATER BASED21.06.198510021.1928.020.0WATER BASED21.06.198510101.0632.08.0WATER BASED24.06.198513001.1638.010.0WATER BASED24.06.198515251.1938.011.0WATER BASED25.06.198517831.2040.012.0WATER BASED26.06.198519331.2334.08.0WATER BASED26.06.198519461.2431.08.0WATER BASED27.06.198519871.2430.07.0WATER BASED28.06.198520341.2632.07.0WATER BASED01.07.198520341.2632.07.0WATER BASED28.06.198520341.2632.07.0WATER BASED01.07.198520601.2631.06.0WATER BASED01.07.198520751.2633.07.0WATER BASED02.07.198520761.2635.010.0WATER BASED04.07.198521071.2741.010.5WATER BASED08.07.198521201.2738.012.5WATER BASED08.07.198521451.2741.013.5WATER BASED08.07.198522271.2740.013.0WATER BASED08.07.198522561.2741.011.0WATER BASED09.07.198522971.2738.011.0WATER BASED10.07.198522971.2736.09.0WATER BASED14.07.198522971.2835.08.0WATER BASED16.07.198522971.2936.08.0WATER BASED16.07.198522971.2944.08.0WATER BASED17.07.198522971.3050.012.0WATER BASED20.07.198522971.2736.09.0WATER BASED14.07.198522971.2835.08.0WATER BASED16.07.198522971.2936.08.0WATER BASED16.07.198522971.2944.08.0WATER BASED17.07.198522971.3050.012.0WATER BASED20.07.1985 -
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]pdf0.21