2/2-5
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Generell informasjon
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Brønnhistorie
GeneralThe main objective of the exploration well 2/2-5 was to test the hydrocarbon potential of the Upper Jurassic Ula Formation situated in the Epsilon structure. The structure is a salt induced anticline situated on a rotated, down thrown fault block in the Ula-Gyda Fault zone. The Oligocene Vade Formation was the secondary target. A seismic anomaly indicated a potential gas accumulation in this zone.Operations and resultsWell 2/2-5 was spudded by the semi submersible rig Treasure Saga on November 7 1991 and completed February 20 1992 in Permian Zechstein Group. The well was drilled with spud mud down to 918 m, with KCl mud from 918 m to 3484 m, and with HITEMP Polymer mud from 3484 m to TD.The well penetrated mainly claystone with minor sandstone in Nordland, Hordaland, and Rogaland Group. The Vade Formation (within Hordaland Group) proved to be water bearing. After drilling throughout a typical sequence of the Shetland and Cromer Knoll groups, the top of the Tyne Group was encountered at 3418 m. The Ula Formation, which was reached at 3538 m, consisted of an interbedded sequence of sandstone, siltstone, and shale.A 5-meter thick oil bearing zone within the Ula Formation was encountered at 3671 m. An attempt made to obtain an oil sample using RFT failed as the fluid chambers contained mud filtrate only. Geochemical analyses of oil from the DST revealed an unusual chemical and isotopic composition unlike any oil in the area. Sediments interpreted to be Triassic age were penetrated at 3989 m and may represent either a fault gouge above salt or the up thrown fault block. The well was permanently abandoned as an oil discovery on 19 February 1992.TestingOne DST test was performed over the interval 3671.25 m to 3675.5 m. The well flowed oil at maximum rate 600 Sm3 / day. The oil had a density of 0.86 g/cm3 and the GOR was 44. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]920.004080.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13592.03609.0[m ]23678.03706.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]45.0Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTTEST-13670.002666.00OIL12.02.1992 - 19:30YES -
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 formasjonstestCONDUCTOR30188.036190.00.00LOTINTERM.20903.026905.01.70LOTINTERM.13 3/82362.017 1/22364.01.75LOTINTERM.9 5/83349.012 1/43350.02.02LOTLINER74082.08 1/24082.00.00LOT -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.0366636707.9Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.0141Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.060044 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL22273365DIL MSFL LSS LDL CNL TLC33523627DLL LSS LDL CST9032365DLL LSS LDL VDL CST23633353MWD - GR RES DIR188190MWD DPR - GR RES DIR190918MWD DPR - GR RES DIR33654082MWD MNP MDL DPR35554087MWD RGD - GR RES DIR9183365RFT TLC36103679SHDT33523627VSP23603349VSP TLC35223722 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet891608218427462746277828362898294729473009320432623262328132853418341834263538353839894079 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokument størrelse [KB]pdf0.61 -
Geokjemisk informasjon
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Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokument størrelse [KB]pdf19.59 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokument størrelse [KB]pdf0.49pdf0.23 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1621.05WATER BASED1901.10WATER BASED5021.10WATER BASED9181.20WATER BASED10291.2027.0WATER BASED13331.3931.0WATER BASED16801.3936.0WATER BASED19371.4141.0WATER BASED20441.4540.0WATER BASED23771.4541.0WATER BASED25231.4533.0WATER BASED27041.4537.0WATER BASED27901.4843.0WATER BASED29061.4839.0WATER BASED30341.4832.0WATER BASED31401.4831.0WATER BASED31481.4828.0WATER BASED32831.5035.0WATER BASED33341.5237.0WATER BASED33491.5120.0WATER BASED33651.5234.0WATER BASED33811.5227.0WATER BASED34181.5025.0WATER BASED34751.5017.0WATER BASED34841.5016.0WATER BASED36601.5418.0WATER BASED36661.5420.0WATER BASED38651.5120.0WATER BASED39511.5119.0WATER BASED39721.5122.0WATER BASED39811.5120.0WATER BASED39851.5119.0WATER BASED40591.5118.0WATER BASED40821.5120.0WATER BASED -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1620.0[m]DCRRI1640.0[m]DCRRI1680.0[m]DCRRI1700.0[m]DCRRI1740.0[m]DCRRI1760.0[m]DCRRI1780.0[m]DCRRI1800.0[m]DCRRI1840.0[m]DCRRI1860.0[m]DCRRI1880.0[m]DCRRI1930.0[m]DCRRI1950.0[m]DCRRI1970.0[m]DCRRI1990.0[m]DCRRI2030.0[m]DCRRI2050.0[m]DCRRI2090.0[m]DCRRI2130.0[m]DCRRI2150.0[m]DCRRI2200.0[m]DCRRI2240.0[m]DCRRI2280.0[m]DCRRI2340.0[m]DCRRI2360.0[m]DCRRI2380.0[m]DCRRI2400.0[m]DCRRI2420.0[m]DCRRI2440.0[m]DCRRI2460.0[m]DCRRI2480.0[m]DCRRI2520.0[m]DCRRI2540.0[m]DCRRI2580.0[m]DCRRI2600.0[m]DCRRI2620.0[m]DCRRI2660.0[m]DCRRI2680.0[m]DCRRI2720.0[m]DCRRI2820.0[m]DCRRI3320.0[m]DCRRI3380.0[m]DCRRI3400.0[m]DCRRI3421.0[m]DCRRI3429.0[m]DCRRI3441.0[m]DCRRI3450.0[m]DCRRI3459.0[m]DCRRI3468.0[m]DCRRI3480.0[m]DCRRI3489.0[m]DCRRI3501.0[m]DCRRI3510.0[m]DCRRI3510.0[m]DCUOSHE3519.0[m]DCRRI3531.0[m]DCRRI3531.0[m]DCUOSHE3540.0[m]DCUOSHE3540.0[m]DCRRI3549.0[m]DCRRI3560.0[m]DCRRI3570.0[m]DCRRI3580.0[m]DCRRI3582.0[m]DCUOSHE3588.0[m]DCUOSHE3592.1[m]CUOSHE3592.2[m]CRRI3593.7[m]CRRI3594.1[m]CUOSHE3595.5[m]CUOSHE3599.7[m]CUOSHE3601.0[m]CUOSHE3602.2[m]CUOSHE3604.0[m]CUOSHE3607.0[m]CUOSHE3608.0[m]CUOSHE3608.6[m]CRRI3609.0[m]CUOSHE3612.0[m]DCUOSHE3620.0[m]DCRRI3624.0[m]DCUOSHE3630.0[m]DCRRI3640.0[m]DCRRI3645.0[m]DCUOSHE3650.0[m]DCRRI3660.0[m]DCRRI3663.0[m]DCUOSHE3670.0[m]DCRRI3678.2[m]CRRI3678.2[m]CUOSHE3680.0[m]DCRRI3683.4[m]CUOSHE3689.2[m]CUOSHE3690.0[m]DCRRI3695.3[m]CUOSHE3703.0[m]CUOSHE3705.0[m]CRRI3705.8[m]CRRI3711.0[m]DCUOSHE3720.0[m]DCRRI3726.0[m]DCUOSHE3729.0[m]DCRRI3741.0[m]DCRRI3744.0[m]DCUOSHE3750.0[m]DCRRI3756.0[m]DCUOSHE3759.0[m]DCRRI3760.0[m]DCRRI3771.0[m]DCRRI3780.0[m]DCRRI3789.0[m]DCRRI3789.0[m]DCUOSHE3801.0[m]DCRRI3807.0[m]DCUOSHE3810.0[m]DCUOSHE3810.0[m]DCRRI3819.0[m]DCRRI3819.0[m]DCUOSHE3822.0[m]DCUOSHE3831.0[m]DCRRI3840.0[m]DCRRI3849.0[m]DCRRI3849.0[m]DCUOSHE3861.0[m]DCRRI3867.0[m]DCUOSHE3870.0[m]DCRRI3879.0[m]DCRRI3891.0[m]DCRRI3894.0[m]DCUOSHE3900.0[m]DCRRI3903.0[m]DCUOSHE3909.0[m]DCRRI3921.0[m]DCRRI3924.0[m]DCUOSHE3942.0[m]DCRRI3945.0[m]DCUOSHE3960.0[m]DCRRI3969.0[m]DCRRI3972.0[m]DCUOSHE3981.0[m]DCRRI3987.0[m]DCUOSHE3990.0[m]DCRRI4002.0[m]DCRRI4011.0[m]DCRRI4020.0[m]DCRRI4032.0[m]DCRRI4041.0[m]DCRRI4050.0[m]DCRRI4059.0[m]DCUOSHE4062.0[m]DCRRI4071.0[m]DCRRI4077.0[m]DCUOSHE4080.0[m]DCRRI