30/5-3 A
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Generell informasjon
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Brønnhistorie
GeneralWell 30/5-3 A is a sidetrack from well 30/5-3 S on the Corvus prospect in the northern part of the Viking Graben at the edge of the Horda Platform in the Northern North Sea. The objective of the sidetrack 30/3-5 S was to evaluate a Cretaceous play to the west of the Corvus main fault and to collect sufficient data to be able to make development plans based on this data.Operations and resultsWildcat well 30/5-3 A was kicked off from 1008 m in 30/5-3 S on 15 April 2009. It was drilled with the semi-submersible installation Transocean Winner to TD at 4746 m (3990.3 m TVD) in the Late Jurassic Draupne Formation. No significant problem was encountered in the operations. The well was drilled with Versatec oil based mud from kick-off to TD.The well penetrated rocks of Tertiary, Cretaceous and Jurassic age. The well proved an absence of reservoir sands in the Cretaceous, but revealed hydrocarbon bearing sands within the Draupne Formation. LWD logs validated the existence of hydrocarbons in this prospect.No oil shows were reported from the well.No cores were cut. The poor quality of the wire line logs proved to be of less value when evaluating the prospect. MDT fluid sampling was attempted at 4706.5 m. Repeated tool failures resulted in insufficient cleanup and a very contaminated sample of poor quality; however the sample confirmed light hydrocarbons at that depth. Large Diameter probe was used for the fluid sampling.The well was permanently abandoned on 30 May 2009 as a gas discovery.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]1020.004746.00 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie4635.0[m]DCPETROSTR4641.0[m]DCPETROS4647.0[m]DCPETROS4653.0[m]DCPETROS4659.0[m]DCPETROS4665.0[m]DCPETROS4671.0[m]DCPETROS4677.0[m]DCPETROS4683.0[m]DCPETROS4689.0[m]DCPETROS4695.0[m]DCPETROS4701.0[m]DCPETROS4707.0[m]DCPETROS4713.0[m]DCPETROS4719.0[m]DCPETROS4725.0[m]DCPETROS4731.0[m]DCPETROS4737.0[m]DCPETROS4743.0[m]DCPETROS4746.0[m]DCPETROS -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet139678904133913942159215922812407258425843368409043914404456045604606465046504704 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]DSI PEX25814105MDT GR47064715MDT GR-TLC47054706MDT GR-TLC47064706MSCT GR46874735MWD - ARCVRES9 POWERPULSE10864098MWD - GVR6 TELE ARCVRES6 VADN640984746MWD - POWERPULSE10081087VIVSP11354000VIVSP39504259WAVSP31153640 -
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.142578.017 1/22596.01.78LOTINTERM.9 5/84098.012 1/44098.02.00LOTOPEN HOLE4746.08 1/24746.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling11831.3936.0Versatec13401.3939.0Versatec14201.4039.0Versatec17171.4139.0Versatec21351.4842.0Versatec25601.5259.0Versatec25961.5053.0Versatec28241.5159.0Versatec34111.5062.0Versatec40981.6366.0Versatec40981.5258.0Versatec41471.7055.0Versatec45681.8060.0Versatec47461.8664.0Versatec47461.8671.0Versatec