6406/2-6
Eksport: PDF
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Generell informasjon
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Brønnhistorie
GeneralWell 6406/2-6 was the third wildcat drilled in the PL 199 licence. The well was drilled on the southern part of the "C structure" in the southwestern part of block 6406/2, south of the Kristin Field and southwest of the 6406/2-1 Lavrans discovery on Haltenbanken. The C structure is an easterly dipping, rotated fault block, down faulted relative to the Lavrans structure and with structural similarities. The main objective of well 6406/2-6 was to test the hydrocarbon potential of the C structure within the Early and Middle Jurassic Fangst and Båt Group sandstones. Late Cretaceous Lysing and Lange sandstones were secondary targets for the well.Operations and resultsWildcat well 6406/2-6 was spudded by the semi-submersible installation "Deepsea Bergen" on 25 August 1998 and drilled to 5263 m, 58 m into the Early Jurassic Åre Formation. The well was a "High Pressure High Temperature" well with max down hole temperature of 177 deg C and max pressure gradient of 1.95 g/cc in top Garn Formation (4479 m TVD RKB). Shallow gas was not encountered and operations went without major problems. The well was drilled with seawater and hi-vis pills down to 1413 m, KCl mud with glycol additive (3 - 5 % Glydril MC) from 1413 m to 2760 m, and oil based mud from 2760 m to TD. Hydrocarbons were proven in Ile and Tofte Formations, and there where good hydrocarbon indications in the Garn and Lange Formations. The main result of well 6406/2-6 was the Ragnfrid discovery with gas/condensate in Ile and Tofte Formations as proven by fluid samples and good indications of hydrocarbons in upper part of Garn Formation and in Lower Lange sandstones. No hydrocarbon fluid samples were obtained from the latter units due to poor reservoir quality. The Tilje and Åre Formations appeared to be water bearing in the well position. The Tofte Formation has good to excellent reservoir properties, Ile properties are fair to good, Garn has poor to moderate reservoir properties except for a good zone in the middle part, and the Lange sandy intervals seem to have low permeabilities. One core (27m) was cut in the Garn Formation. Four MDT samples were taken in the hydrocarbon bearing Ile and Tofte Formations. One of these was recovered from 4737.4 m in the Tofte Formation; the other three were recovered from 4622.2 m in the Ile Formation. All four samples were heavily contaminated with oil-based mud. In addition to these, MDT water samples were collected from the Garn, Ile, and Tofte Formations. The well was suspended as a gas and condensate discovery on 7 November 1998.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]1420.005263.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet14504.04530.7[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]26.7Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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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 formasjonstestCONDUCTOR30412.036412.00.00LOTINTERM.18 5/81408.0241408.01.66LOTINTERM.13 3/82748.017 1/22748.02.07LOTINTERM.9 5/84406.012 1/44406.02.18LOTOPEN HOLE5263.08 1/25263.00.00LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]AIT DSI GR44085261AIT GR44064877CMR IPLT44085244LDT CNT AMS GR27484577LDT CNT GR44084577MDT AMS GR27454307MDT GR27455261MSCT GR27485251MWD - RWD GR RES DIR3025263PI DSI LDT AMS GR14052750PI DSI LDT CNT GR27454416VSP44065261 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet32532515861978197825082508257726362636274629023515351535324422443244324433448044804573461747184718472549655204 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.54 -
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].pdf36.16 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling5851.207.0WATER BASED6601.2021.0WATER BASED6851.03SPUD MUD14131.30WATER BASED14181.3028.0WATER BASED25491.6845.0WATER BASED27601.6851.0WATER BASED32361.6443.0OIL BASED36611.7048.0OIL BASED38251.7447.0OIL BASED40531.7449.0OIL BASED44151.8552.0OIL BASED44302.0462.0OIL BASED45042.0458.0OIL BASED45252.0459.0OIL BASED45312.0459.0OIL BASED45752.0258.0OIL BASED46652.0463.0OIL BASED47002.0463.0OIL BASED48722.0462.0OIL BASED49132.0461.0OIL BASED50302.0468.0OIL BASED50862.0472.0OIL BASED52632.0473.0OIL BASED -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1470.0[m]DCSTRAT1490.0[m]DCSTRAT1510.0[m]DCSTRAT1530.0[m]DCSTRAT1550.0[m]DCSTRAT1570.0[m]DCSTRAT1590.0[m]DCSTRAT1630.0[m]DCSTRAT1650.0[m]DCSTRAT1670.0[m]DCSTRAT1700.0[m]DCSTRAT1710.0[m]DCSTRAT1730.0[m]DCSTRAT1740.0[m]DCSTRAT1780.0[m]DCSTRAT1800.0[m]DCSTRAT1820.0[m]DCSTRAT1840.0[m]DCSTRAT1860.0[m]DCSTRAT1870.0[m]DCSTRAT1890.0[m]DCSTRAT1900.0[m]DCSTRAT1920.0[m]DCSTRAT1940.0[m]DCSTRAT1950.0[m]DCSTRAT1970.0[m]DCSTRAT1990.0[m]DCSTRAT2010.0[m]DCSTRAT2030.0[m]DCSTRAT2050.0[m]DCSTRAT2070.0[m]DCSTRAT2080.0[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]DCSTRAT2620.0[m]DCSTRAT2630.0[m]DCSTRAT2650.0[m]DCSTRAT2675.0[m]DCSTRAT2690.0[m]DCSTRAT2710.0[m]DCSTRAT2730.0[m]DCSTRAT2750.0[m]DCSTRAT2770.0[m]DCSTRAT2785.0[m]DCSTRAT2810.0[m]DCSTRAT2830.0[m]DCSTRAT2850.0[m]DCSTRAT2865.0[m]DCSTRAT2880.0[m]DCSTRAT2900.0[m]DCSTRAT2920.0[m]DCSTRAT2940.0[m]DCSTRAT2960.0[m]DCSTRAT2980.0[m]DCSTRAT3000.0[m]DCSTRAT3060.0[m]DCSTRAT3080.0[m]DCSTRAT3100.0[m]DCSTRAT3160.0[m]DCSTRAT3180.0[m]DCSTRAT3200.0[m]DCSTRAT3220.0[m]DCSTRAT3260.0[m]DCSTRAT3275.0[m]DCSTRAT3300.0[m]DCSTRAT3320.0[m]DCSTRAT3345.0[m]DCSTRAT3365.0[m]DCSTRAT3375.0[m]DCSTRAT3395.0[m]DCSTRAT3415.0[m]DCSTRAT3435.0[m]DCSTRAT3455.0[m]DCSTRAT3475.0[m]DCSTRAT3495.0[m]DCSTRAT3515.0[m]DCSTRAT3535.0[m]DCSTRAT3555.0[m]DCSTRAT3575.0[m]DCSTRAT3595.0[m]DCSTRAT3615.0[m]DCSTRAT3635.0[m]DCSTRAT3655.0[m]DCSTRAT3675.0[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]DCSTRAT4275.0[m]DCSTRAT4295.0[m]DCSTRAT4315.0[m]DCSTRAT4335.0[m]DCSTRAT4355.0[m]DCSTRAT4375.0[m]DCSTRAT4395.0[m]DCSTRAT4415.0[m]DCSTRAT4424.0[m]DCSTRAT4433.0[m]DCSTRAT4436.0[m]DCSTRAT4442.0[m]DCSTRAT4451.0[m]DCSTRAT4460.0[m]DCSTRAT4469.0[m]DCSTRAT4478.0[m]DCSTRAT4487.0[m]DCSTRAT4496.0[m]DCSTRAT4504.0[m]DCSTRAT4512.0[m]DCSTRAT4524.0[m]DCSTRAT4530.0[m]DCSTRAT4538.0[m]DCSTRAT4547.0[m]DCSTRAT4553.0[m]DCSTRAT4562.0[m]DCSTRAT4571.0[m]DCSTRAT4580.0[m]DCSTRAT4589.0[m]DCSTRAT4598.0[m]DCSTRAT4606.0[m]DCSTRAT4616.0[m]DCSTRAT4625.0[m]DCSTRAT4634.0[m]DCSTRAT4643.0[m]DCSTRAT4652.0[m]DCSTRAT4661.0[m]DCSTRAT4670.0[m]DCSTRAT4697.0[m]DCSTRAT4706.0[m]DCSTRAT4733.0[m]DCSTRAT4787.0[m]DCSTRAT4796.0[m]DCSTRAT4805.0[m]DCSTRAT4814.0[m]DCSTRAT4877.0[m]DCSTRAT4886.0[m]DCSTRAT4895.0[m]DCSTRAT4904.0[m]DCSTRAT4913.0[m]DCSTRAT4922.0[m]DCSTRAT4931.0[m]DCSTRAT4952.0[m]DCSTRAT4961.0[m]DCSTRAT4970.0[m]DCSTRAT4973.0[m]DCSTRAT4979.0[m]DCSTRAT4982.0[m]DCSTRAT4988.0[m]DCSTRAT4991.0[m]DCSTRAT4997.0[m]DCSTRAT5000.0[m]DCSTRAT5009.0[m]DCSTRAT5018.0[m]DCSTRAT5036.0[m]DCSTRAT5045.0[m]DCSTRAT5054.0[m]DCSTRAT5072.0[m]DCSTRAT5081.0[m]DCSTRAT5090.0[m]DCSTRAT5099.0[m]DCSTRAT5108.0[m]DCSTRAT5117.0[m]DCSTRAT5126.0[m]DCSTRAT5135.0[m]DCSTRAT5144.0[m]DCSTRAT5153.0[m]DCSTRAT5162.0[m]DCSTRAT5171.0[m]DCSTRAT5180.0[m]DCSTRAT5189.0[m]DCSTRAT5198.0[m]DCSTRAT5207.0[m]DCSTRAT5216.0[m]DCSTRAT5225.0[m]DCSTRAT5234.0[m]DCSTRAT5243.0[m]DCSTRAT5252.0[m]DCSTRAT5263.0[m]DCSTRAT