36/7-1
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Generell informasjon
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Brønnhistorie
GeneralWell 36/7-1 is located on the Måløy slope, ca 4 km SE of the 35/9-1 Gjøa Discovery well. It was the third exploration well to be drilled in the licence area and tested the hydrocarbon potential of the A-East structure. The primary target was the transgressive sands of the Sognefjord and Fensfjord formations. Brent Group sandstone was secondary target.Operations and resultsWildcat well 36/7-1 was spudded with the semi-submersible installation West Vanguard on 31 March 1996 and drilled to TD at 2841 m in basement rock. No significant technical problems were encountered in the operations. The well was drilled with seawater and hi-vis sweeps (spud mud) mud down to 1256 m and with ANCO 2000 mud from 1256 m to TD.The well discovered oil and gas in Intra Draupne sandstones and the Sognefjord Formations of Late Jurassic age as well as in middle jurassic Fensfjord Formation. The Brent Group was dry. The reservoir consists of sandstone, siltstone and shale. The free oil and free water levels were clearly defined from the MDT pressure data and were consistent with the fluid contacts apparent from the logs. The FOL was at 2337.6 m (2315.0 m TVD MSL), and the FWL was at 2372.1 m, (2349.5 m TVD MSL). Proven gross gas column was 217 m (2120 -2337 m) and proven gross oil column was 34.5 m (2337 - 2371.5 m). Reported oil shows began at 1910 m and ended at 2429 m. Evaluation of MDT data from well 36/7-1 showed the same pressure environment within the oil zone of the Fensfjord Formation as in the wells 36/7-1 and 35/9-2.A total of 280 m core was retrieved in nine cores from the interval 2124 m to 2429.5 m in the Sognefjord and Fensfjord Formations. MDT sampling was performed at 2443.5 m in the water zone.The well was permanently abandoned on 7 May 1996 as an oil and gas discovery.TestingA successful production test was performed in an approximately 12 m thick sandstone layer within the oil zone (2362.9 - 2367.9 m). Production was 1025 Sm3 /day on a 64/64 choke. The fluid contained 0.15% CO2 and the gas/oil ratio was 166 Sm3/Sm3. The oil density was 0.82 g/cm3. No water was produced. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]1260.002842.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet12124.02142.9[m ]22143.02169.7[m ]32171.02199.0[m ]42199.02226.8[m ]52247.02272.9[m ]62275.02308.3[m ]72309.02345.6[m ]82346.02383.1[m ]92383.02429.5[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]280.8Borekjerner 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 tilgjengeligDSTDST12368.002363.0001.05.1996 - 07:47YES -
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 formasjonstestCONDUCTOR30440.036440.00.00LOTSURF.COND.13 3/81251.017 1/21251.01.46LOTOPEN HOLE2124.012 1/42124.00.00LOTOPEN HOLE2841.08 1/22841.00.00LOT -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.02363236825.4Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.024.00022.00024.00083Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.010251711750.8200.800167 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CST GR12872116DLL MSFL SDT LDL CNL GR AMS12532835FMI NGT AMS12532834MDT GR24430MDT GR ACTS21352778MWD - GR RES DIR3802841VSP10352820 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet380608128112811323195819762020202020462120212021712207223525102560266226622700272727702770280828082834 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokument størrelse [KB]pdf0.46 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokument størrelse [KB]pdf11.21 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokument størrelse [KB]pdf20.84 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4401.20WATER BASED9791.05WATER BASED12561.208.0WATER BASED21421.2012.0WATER BASED23051.2316.0WATER BASED27771.2015.0WATER BASED28321.2122.0WATER BASED28411.2123.0WATER BASED -
Palynologiske preparater i Sokkeldirektoratet
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Tynnslip i Sokkeldirektoratet
Tynnslip i Sokkeldirektoratet DybdeEnhet2368.53[m ]2362.25[m ]2331.47[m ]2317.48[m ]2305.02[m ]2276.78[m ]2270.55[m ]2251.50[m ]2204.52[m ]2193.50[m ]2183.63[m ]2173.50[m ]2161.75[m ]2132.67[m ]2124.45[m ]