7228/1-1
Eksport: PDF
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Generell informasjon
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Brønnhistorie
GeneralWell 7228/1-1 was drilled on the Eik Prospect in the Barents Sea on the eastern border of the Bjarmeland Platform. The Eik prospect is a salt-induced structure located close to the northern part of the Nyslepp Fault Complex, which separates the Bjarmeland Platform from the Nordkapp Basin. The main target was the Early Jurassic - Late Triassic sandstones contained in the Kapp Toscana Group. Secondary Targets were Late Triassic Intra-Snadd Formation sandstone and sandstones in the Middle Triassic Kobbe Formation.Operations and resultsWildcat well 7228/1-1 was spudded with the semi-submersible installation Transocean Barents on 29 March 2012 and drilled to TD at 1714 m in the Middle Triassic Kobbe Formation. No significant problem was encountered in the operations. The well was drilled with seawater and hi-vis pills down to 755 m and with Glydril mud from 755 m to TD.Good quality reservoir sandstones were found in the Kapp Toscana Group (Nordmela, Tubåen, and Fruholmen formations); 100 m net reservoir in total. The Intra Snadd sand secondary target had 32 m of net reservoir with very good porosities. Only poor reservoir intervals were found within the Kobbe Formation, with low net to gross values and low porosities. None of the reservoir intervals were hydrocarbon-bearing. Weak Shows were reported from cuttings evaluation over Tubåen and Fruholmen sands from 976 m to 1092 m. The shows were described as fair spotty yellow direct fluorescence, very slow dull blue white fluorescence cut, no visible cut and fair dull blue white residual ring. No shows were observed below Fruholmen Formation. No bottom hole temperature at final TD is given on the fact pages, due to no reliable downhole temperature obtained.No cores were cut. A dry case wire line logging program was performed. No wire line fluid samples were taken.The well was permanently abandoned on 26 April 2012 as a dry well.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]765.001714.00 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet3913914164168438819289679679741034113715131513 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]txt0.00txt0.02 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]MWD - DIR INC392459MWD - GR RES SON DEN NEU4591714PEX HRLA MSIP XPT8401713PEX MSIP PPC GPIT EDTC742887VSI4901690 -
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 formasjonstestCONDUCTOR30455.036459.00.00LOTSURF.COND.13 3/8749.017 1/2755.00.00LOTPILOT HOLE755.09 7/8755.00.00LOTINTERM.9 5/8884.012 1/4889.01.45LOTOPEN HOLE1714.08 1/21714.01.64LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4001.0221.0SW/Bentonite Sweeps4501.0220.0SW/Bentonite Sweeeps4581.3920.0Bentonite7551.2423.0Glydril7881.2418.0Glydril8891.2419.0Glydril11851.2919.0Glydril15911.2920.0Glydril17141.2919.0Glydril -
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]pdf0.17