15/5-7 A
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Generell informasjon
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Brønnhistorie
GeneralWell 15/5-7 A is a sidetrack from well 15/5-7 on the Dagny Discovery in the southern Viking Graben area of the North Sea. Well 15/5-7 proved an oil-filled Hugin Formation, a 98 m oil column. The primary objective of the sidetrack 15/5-7 A was to obtain data from the water zone, down-flanks on the structure.Operations and resultsAppraisal well 15/5-7 A was drilled with the semi-submersible installation Transocean Winner. The sidetrack commenced on 8 September at 3145 m and drilled to 4130 m in the Sleipner Formation. The wire line logging tools stuck in the first run at 3515 m and only very incomplete logs were obtained from this bore hole. Fishing failed, the fish was pushed down to 3715 m, and the borehole was plugged back for a second sidetrack. The second, named technically as sidetrack 15/5-7 AT2, was kicked off from 3337 m in well 15/5-7 on 24 September 2008 and drilled to TD at 4199 m in the Middle Jurassic Sleipner Formation. TD logging was obtained. The sidetrack well was drilled with an oil based mud.Based on pressure gradients recorded in 15/5-7 and the sidetrack, the OWC was estimated at 3923 m TVD RKB. No oil shows were recorded in the well.No cores were cut in the well. MDT pressures were recorded in the water bearing Hugin Formation. MDT water samples were taken at 3998.2 m in the technical sidetrack.The well was permanently abandoned on 13 October 2008 as an oil appraisal.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]3170.004130.00 -
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 formasjonstestINTERM.13 3/82657.017 1/22669.01.65LOTOPEN HOLE4130.08 1/24130.00.00LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]MDT39694088MDT39894085MSIP GR PPC136344132MWD - ECO TELE33614199MWD - TELE33373361VSP SS36954153VSP ZO21164100XPT PT39984149 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet145791991173221102110214221902222263026602719271927903053340234023493372837283870397339734098 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling41301.40Oil based -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie3680.0[m]DCICHRON3690.0[m]DCICHRON3700.0[m]DCICHRON3710.0[m]DCICHRON3720.0[m]DCICHRON3730.0[m]DCICHRON3740.0[m]DCICHRON3750.0[m]DCICHRON3760.0[m]DCICHRON3770.0[m]DCICHRON3780.0[m]DCICHRON3790.0[m]DCICHRON3800.0[m]DCICHRON3810.0[m]DCICHRON3812.0[m]DCICHRON3820.0[m]DCICHRON3827.0[m]DCICHRON3830.0[m]DCICHRON3840.0[m]DCICHRON3842.0[m]DCICHRON3850.0[m]DCICHRON3857.0[m]DCICHRON3860.0[m]DCICHRON3870.0[m]DCICHRON3872.0[m]DCICHRON3880.0[m]DCICHRON3887.0[m]DCICHRON3890.0[m]DCICHRON3900.0[m]DCICHRON3902.0[m]DCICHRON3910.0[m]DCICHRON3917.0[m]DCICHRON3920.0[m]DCICHRON3929.0[m]DCICHRON3933.0[m]DCICHRON3938.0[m]DCICHRON3947.0[m]DCICHRON3956.0[m]DCICHRON3962.0[m]DCICHRON3965.0[m]DCICHRON3968.0[m]DCICHRON3971.0[m]DCICHRON3974.0[m]DCICHRON3977.0[m]DCICHRON3980.0[m]DCICHRON3983.0[m]DCICHRON3986.0[m]DCICHRON3989.0[m]DCICHRON3992.0[m]DCICHRON3995.0[m]DCICHRON3998.0[m]DCICHRON4001.0[m]DCICHRON4004.0[m]DCICHRON4007.0[m]DCICHRON4010.0[m]DCICHRON4013.0[m]DCICHRON4016.0[m]DCICHRON4019.0[m]DCICHRON4022.0[m]DCICHRON4025.0[m]DCICHRON4028.0[m]DCICHRON4031.0[m]DCICHRON4034.0[m]DCICHRON4037.0[m]DCICHRON4040.0[m]DCICHRON4043.0[m]DCICHRON4046.0[m]DCICHRON4049.0[m]DCICHRON4052.0[m]DCICHRON4055.0[m]DCICHRON4055.0[m]DCICHRON4058.0[m]DCICHRON4061.0[m]DCICHRON4064.0[m]DCICHRON4067.0[m]DCICHRON4070.0[m]DCICHRON4073.0[m]DCICHRON4076.0[m]DCICHRON4079.0[m]DCICHRON4082.0[m]DCICHRON4085.0[m]DCICHRON4088.0[m]DCICHRON4091.0[m]DCICHRON4094.0[m]DCICHRON4097.0[m]DCICHRON4100.0[m]DCICHRON4103.0[m]DCICHRON4106.0[m]DCICHRON4109.0[m]DCICHRON4112.0[m]DCICHRON4115.0[m]DCICHRON4118.0[m]DCICHRON4121.0[m]DCICHRON4124.0[m]DCICHRON4127.0[m]DCICHRON4130.0[m]DCICHRON4133.0[m]DCICHRON4139.0[m]DCICHRON4142.0[m]DCICHRON4145.0[m]DCICHRON4148.0[m]DCICHRON4151.0[m]DCICHRON4154.0[m]DCICHRON4163.0[m]DCICHRON4169.0[m]DCICHRON4175.0[m]DCICHRON4181.0[m]DCICHRON4187.0[m]DCICHRON4193.0[m]DCICHRON