6406/2-2
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Generell informasjon
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Brønnhistorie
GeneralWell 6406/2-2 was drilled on the B structure (Lavrans discovery) in the eastern part of the block, south of an east-west trending cross fault. The discovery well 6406/2-1 had previously been drilled on the northern segment of the B structure. The cross fault was suspected to act as a pressure barrier between the two segments, causing variation in fluid types. The main objective of well 6406/2-2 was to prove hydrocarbons and verify fluid contacts in the southern segment, which seemed to differ from the northern segment in both the nature and intensity of the seismic amplitudes. An additional objective was to investigate any differences in reservoir development between the two segments.Operations and resultsAppraisal well 6406/2-2 was spudded 12 December 1995 with the semi-submersible installation "Ross Rig" and TD was reached at 5367 m (5351 mTVD) 12 February 1996 in the Åre Formation. The well was drilled water based with bentonite down to 1272 m, with KCl and glycol (ANCO 208) from 1272 to 2858 m, and with oil-based mud from 2858 m to TD. The formation tops were drilled in accordance with the prognosis, and the lithologies drilled were largely similar to those reported from 6406/2-1. The Jurassic succession was encountered 5-100 m deeper than in well 6406/2-1, due to the lower structural position of well 6406/2-2. As in well 6406/2-1, well 6406/2-2 proved the presence of thick reservoir sandstones in the Garn, Ile, Tofte and Tilje Formations. In addition, an 8 m thick sand was drilled in the lower part of the Ror Formation. The reservoir quality showed large variations, with generally poor porosity in the Garn Formation, good porosity in parts of the Ile Formation, generally good porosity in the Tofte Formation, and zones with good porosity especially in the lower part of the Tilje Formation. Other parts of the Ile and Tilje Formations, as well as the sandstone beds in the upper part of the Åre Formation, were tight as a result of silica cementing. Sandy intervals within the Cromer Knoll Group proved to contain thin beds of impure sandstone with poor reservoir quality. As in well 6406/2-1, the reservoir quality of the Jurassic sandstone intervals is highly variable, with zones of good porosity both in the Ile, Tofte, Tilje Formations, and the lower part of the Ror Formation. Twelve cores were obtained from the Garn, Ile, Tofte, Lower Ror and Tilje Formations. A total of 410,2 m was drilled, of which 408,65 m was recovered. Formation multi tester (FMT) samples containing hydrocarbons were obtained from the Ile, Tofte and intra Lower Ror sands. All FMT samples were contaminated with oil-based mud. The rig operations were terminated 27 March 1996 after two production tests and the well was suspended as a gas/condensate appraisal well.TestingTwo production tests were performed in the Tofte Formation and the lower part of the Ile Formation. DST 2 gave maximum rates of 1021 000 Sm3/day gas and 557 Sm3/day condensate through a 68/64" choke. The average separator GOR during the 40/64" choke period m DST 2 was 2050 Sm3 /Sm3 at separator conditions of about 41.5 bar and 30 deg C, which is lower than in well 6406/2-1. Hydrocarbons were proven down to 4745 m in the Ile Formation, and down to 4927 m in the Tofte Formation. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]1280.005367.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet14479.04495.0[m ]24626.04647.7[m ]34648.04684.9[m ]44685.04722.3[m ]54722.34759.2[m ]64868.04905.0[m ]74905.04941.9[m ]84942.04979.2[m ]94979.55016.5[m ]105016.55053.9[m ]115054.05091.4[m ]125091.55128.7[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]408.7Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1290.0[m]DCSTRAT1310.0[m]DCSTRAT1330.0[m]DCSTRAT1350.0[m]DCSTRAT1370.0[m]DCSTRAT1390.0[m]DCSTRAT1410.0[m]DCSTRAT1430.0[m]DCSTRAT1450.0[m]DCSTRAT1470.0[m]DCSTRAT1490.0[m]DCSTRAT1510.0[m]DCSTRAT1530.0[m]DCSTRAT1550.0[m]DCSTRAT1570.0[m]DCSTRAT1590.0[m]DCSTRAT1610.0[m]DCSTRAT1630.0[m]DCSTRAT1650.0[m]DCSTRAT1670.0[m]DCSTRAT1690.0[m]DCSTRAT1720.0[m]DCSTRAT1730.0[m]DCSTRAT1750.0[m]DCSTRAT1770.0[m]DCSTRAT1790.0[m]DCSTRAT1800.0[m]DCSTRAT1830.0[m]DCSTRAT1850.0[m]DCSTRAT1870.0[m]DCSTRAT1890.0[m]DCSTRAT1910.0[m]DCSTRAT1930.0[m]DCSTRAT1950.0[m]DCSTRAT1970.0[m]DCSTRAT1990.0[m]DCSTRAT2010.0[m]DCSTRAT2030.0[m]DCSTRAT2050.0[m]DCSTRAT2060.0[m]DCSTRAT2080.0[m]DCSTRAT2090.0[m]DCSTRAT2110.0[m]DCSTRAT2130.0[m]DCSTRAT2150.0[m]DCSTRAT2170.0[m]DCSTRAT2190.0[m]DCSTRAT2210.0[m]DCSTRAT2230.0[m]DCSTRAT2250.0[m]DCSTRAT2270.0[m]DCSTRAT2290.0[m]DCSTRAT2310.0[m]DCSTRAT2330.0[m]DCSTRAT2350.0[m]DCSTRAT2370.0[m]DCSTRAT2390.0[m]DCSTRAT2410.0[m]DCSTRAT2430.0[m]DCSTRAT2450.0[m]DCSTRAT2470.0[m]DCSTRAT2490.0[m]DCSTRAT2510.0[m]DCSTRAT2530.0[m]DCSTRAT2550.0[m]DCSTRAT2570.0[m]DCSTRAT2590.0[m]DCSTRAT2610.0[m]DCSTRAT2630.0[m]DCSTRAT2650.0[m]DCSTRAT2670.0[m]DCSTRAT2690.0[m]DCSTRAT2710.0[m]DCSTRAT2735.0[m]DCSTRAT2745.0[m]DCSTRAT2765.0[m]DCSTRAT2785.0[m]DCSTRAT2815.0[m]DCSTRAT2825.0[m]DCSTRAT2845.0[m]DCSTRAT2865.0[m]DCSTRAT2875.0[m]DCSTRAT2895.0[m]DCSTRAT2915.0[m]DCSTRAT2935.0[m]DCSTRAT2955.0[m]DCSTRAT2975.0[m]DCSTRAT2995.0[m]DCSTRAT3015.0[m]DCSTRAT3035.0[m]DCSTRAT3055.0[m]DCSTRAT3075.0[m]DCSTRAT3085.0[m]DCSTRAT3110.0[m]DCSTRAT3130.0[m]DCSTRAT3145.0[m]DCSTRAT3170.0[m]DCSTRAT3185.0[m]DCSTRAT3205.0[m]DCSTRAT3225.0[m]DCSTRAT3245.0[m]DCSTRAT3265.0[m]DCSTRAT3285.0[m]DCSTRAT3295.0[m]DCSTRAT3315.0[m]DCSTRAT3335.0[m]DCSTRAT3355.0[m]DCSTRAT3375.0[m]DCSTRAT3390.0[m]DCSTRAT3410.0[m]DCSTRAT3425.0[m]DCSTRAT3445.0[m]DCSTRAT3465.0[m]DCSTRAT3485.0[m]DCSTRAT3505.0[m]DCSTRAT3525.0[m]DCSTRAT3545.0[m]DCSTRAT3565.0[m]DCSTRAT3585.0[m]DCSTRAT3605.0[m]DCSTRAT3625.0[m]DCSTRAT3645.0[m]DCSTRAT3665.0[m]DCSTRAT3685.0[m]DCSTRAT3695.0[m]DCSTRAT3715.0[m]DCSTRAT3735.0[m]DCSTRAT3755.0[m]DCSTRAT3775.0[m]DCSTRAT3795.0[m]DCSTRAT3815.0[m]DCSTRAT3835.0[m]DCSTRAT3855.0[m]DCSTRAT3875.0[m]DCSTRAT3895.0[m]DCSTRAT3915.0[m]DCSTRAT3935.0[m]DCSTRAT3955.0[m]DCSTRAT3975.0[m]DCSTRAT3995.0[m]DCSTRAT4015.0[m]DCSTRAT4035.0[m]DCSTRAT4055.0[m]DCSTRAT4075.0[m]DCSTRAT4095.0[m]DCSTRAT4115.0[m]DCSTRAT4135.0[m]DCSTRAT4155.0[m]DCSTRAT4175.0[m]DCSTRAT4195.0[m]DCSTRAT4215.0[m]DCSTRAT4235.0[m]DCSTRAT4255.0[m]DCSTRAT4265.0[m]DCSTRAT4305.0[m]DCSTRAT4325.0[m]DCSTRAT4345.0[m]DCSTRAT4365.0[m]DCSTRAT4375.0[m]DCSTRAT4385.0[m]DCSTRAT4395.0[m]DCSTRAT4405.0[m]DCSTRAT4415.0[m]DCSTRAT4425.0[m]DCSTRAT4435.0[m]DCSTRAT4445.0[m]DCSTRAT4453.0[m]DCSTRAT4461.0[m]DCSTRAT4473.0[m]DCSTRAT4521.0[m]DCSTRAT4536.0[m]DCSTRAT4542.0[m]DCSTRAT4554.0[m]DCSTRAT4569.0[m]DCSTRAT4581.0[m]DCSTRAT4605.0[m]DCSTRAT4617.0[m]DCSTRAT4629.0[m]CSTRAT4645.0[m]CSTRAT4664.0[m]CSTRAT4682.0[m]CSTRAT4692.0[m]CSTRAT4700.0[m]CSTRAT4710.0[m]CSTRAT4767.0[m]DCSTRAT4791.0[m]DCSTRAT4803.0[m]DCSTRAT4812.0[m]DCSTRAT4824.0[m]DCSTRAT4836.0[m]DCSTRAT4848.0[m]DCSTRAT4860.0[m]DCSTRAT4894.0[m]CSTRAT4930.0[m]CSTRAT4939.0[m]CSTRAT4947.4[m]COD4947.4[m]COD4948.0[m]CSTRATLAB4957.0[m]CSTRATL4966.0[m]CSTRATL4977.0[m]CSTRATL4983.0[m]CSTRATL4992.0[m]CSTRATL5000.0[m]CSTRATL5009.0[m]CSTRATL5019.0[m]CSTRATL5028.0[m]CSTRATL5047.0[m]CSTRATL5056.0[m]CSTRATL5063.0[m]CSTRATL5073.0[m]CSTRATL5083.0[m]CSTRATL5091.0[m]CSTRATL5094.0[m]CSTRATL5101.0[m]CSTRATL5110.0[m]CSTRATL5126.0[m]CSTRATL5139.0[m]DCSTRATL5151.0[m]DCSTRATL5163.0[m]DCSTRATL5175.0[m]DCSTRATL5187.0[m]DCSTRATL5199.0[m]DCSTRATL5223.0[m]DCSTRATL5235.0[m]DCSTRATL5259.0[m]DCSTRATL5271.0[m]DCSTRATL5283.0[m]DCSTRATL5295.0[m]DCSTRATL5307.0[m]DCSTRATL5319.0[m]DCSTRATL5331.0[m]DCSTRATL5343.0[m]DCSTRATL5355.0[m]DCSTRATL5367.0[m]DCSTRATL -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet296296156118651865241624162481254025402683288234453445345943544375437543894461446145764623475647564868492849785291 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.70 -
Geokjemisk informasjon
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Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf39.22 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.04927486819.12.04746471527.0Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.051.00010.00052.0001762.041.00032.00051.000171Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.0912230000.8040.94124502.057510210000.7841.0301808 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]DPIL MAC DSL44695127DPIL MAC XDL CN28494477DPIL MAC ZDL12522855FMT QDYNE34524949HEXDIP CBIL44665358MRIL44955155MWD DIR396382MWD RES DIR GR3825284RCOR29104825ZDL CN DEL244694851ZDL CN DEL2 DSL47505370ZDL CN ORIT45875130 -
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 formasjonstestCONDUCTOR30382.036383.00.00LOTINTERM.18 5/81252.0201254.01.69LOTINTERM.13 3/82849.017 1/22850.01.84LOTINTERM.9 5/84467.012 1/44468.01.82LOTLINER75367.08 1/25367.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3871.03WATER BASED4701.2010.0WATER BASED10941.2010.0WATER BASED12721.2010.0WATER BASED12721.2510.0WATER BASED14891.3026.0KCL MUD21221.4832.0KCL MUD25981.6446.0KCL MUD26541.6446.0KCL MUD28581.6633.0KCL MUD32041.5544.0OIL BASED34501.5545.0OIL BASED35391.5750.0OIL BASED38401.5754.0OIL BASED41571.5950.0OIL BASED42151.6255.0OIL BASED42151.6251.0OIL BASED44501.6246.0OIL BASED44741.6447.0OIL BASED44861.3528.0OIL BASED45891.3532.0OIL BASED46261.3530.0OIL BASED46481.3530.0OIL BASED46851.3532.0OIL BASED47591.3533.0OIL BASED48281.3531.0OIL BASED48681.3334.0OIL BASED49421.3235.0OIL BASED49801.3230.0OIL BASED50171.3235.0OIL BASED50541.3234.0OIL BASED51291.3237.0OIL BASED51821.3237.0OIL BASED52361.3238.0OIL BASED52481.3240.0OIL BASED52921.3244.0OIL BASED53361.3239.0OIL BASED53671.3239.0OIL BASED -
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]pdf0.29