2/7-16
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Generell informasjon
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Brønnhistorie
GeneralWildcat well 2/7-16 was drilled on a structure on a broad terrace to the south of Edda field and with a geological environment similar to Edda. The primary objective was to test the potential for hydrocarbon production from Danian and Late Cretaceous Limestones on a low relief structural closure. Secondary objective was a possible stratigraphic trap potential in Early Cretaceous sandstones.Operations and resultsWell 2/7-16 was spudded with the semi-submersible installation Nortrym on 20 March 1980 and drilled to TD at 4818 m in the Early Cretaceous Ågard Formation. The well was drilled with Seawater/Native Solids mud down to the 13 3/8" casing point at 1523 m, with Seawater/Lignosulphonate from 1523 m to the 9 5/8" casing point at 3794 m, and with Calcium chloride/Sodium chloride XC polymer mud from 3794 m to TD.Hydrocarbon shows were encountered in the Danian and Upper Cretaceous limestone. The porosity was poorly developed and testing verified the zones to be non-productive. Early Cretaceous had shows in limestones, claystones, shales, and marls, but no sandstones were found.Thirteen conventional cores were cut continuously from 3182 m to 3402 m in the Ekofisk and Tor Formations Formations. Twenty-five RFT measurements were attempted in the gross interval 3823.8 - 4783.6 m. A fluid sample was obtained at 4587.9 m. It contained 50 ml formation water and 39 cubic feet (1.1 Sm3) gas.The well was permanently abandoned on 12 July 1980 as a dry well with shows.TestingTwo drill stem tests were conducted. DST 1 at 3279.7 to 3288.8 m in the Tor Formation produced 660 barrels (105 m3) of water /day, with traces of oil and gas. DST 2 from the intervals 3193.1 - 3199.8 and 3201.4 - 3215.4 m in the Ekofisk Formation produced 28.8 barrels (4.6 m3) water /day with no oil or gas before acid treatment. Well died completely after acid, with only a very weak flow of acid gas. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]637.004817.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet110441.010501.0[ft ]210501.010558.9[ft ]310560.010619.6[ft ]410621.010661.1[ft ]510681.010729.0[ft ]610730.010788.0[ft ]710790.010841.6[ft ]810843.010901.6[ft ]910903.010908.6[ft ]1010921.010981.0[ft ]1110981.011038.6[ft ]1211041.011101.0[ft ]1311101.011161.0[ft ]1411163.011172.0[ft ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]209.1Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
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 formasjonstestCONDUCTOR30139.036140.00.00LOTSURF.COND.20587.026605.01.53LOTINTERM.13 3/81497.017 1/21513.02.04LOTINTERM.9 5/83769.012 1/43788.02.09LOTLINER74818.08 1/24818.00.00LOT -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.0325432630.02.0316831900.0Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.02.0Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.02.0 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]DLL BHC GR SP37934816FDC CNL GR CAL28344817HDT15243805ISF BHC GR CAL SP1643814ML MLL37914817VELOCITY6254818 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet961714299529953012308031503182318232643500396739754271427143594533 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf31.79pdf3.09 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.13pdf0.29 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling6271.1380.0WATER BASED12.07.198012011.2548.0WATER BASED12.07.198015381.3734.0WATER BASED12.07.198023061.7358.0WATER BASED12.07.198025611.7247.0WATER BASED12.07.198028241.7262.0WATER BASED12.07.198032011.7060.0WATER BASED12.07.198032201.6956.0WATER BASED12.07.198034321.4958.0WATER BASED12.07.198041151.6465.0WATER BASED12.07.198046741.7855.0WATER BASED12.07.198048171.8847.0WATER BASED12.07.1980