6406/2-8
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Generell informasjon
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Brønnhistorie
GeneralWell 6406/2-8 was drilled to test the Imsa prospect on the Halten Terrace in the Norwegian Sea. The primary objective was to prove commercial volumes of movable hydrocarbons in Jurassic sandstones of the Garn-, Ile- Tofte- and Tilje formations.Operations and resultsWildcat well 6406/2-8 was spudded with the semi-submersible installation Transocean Arctic on 17 January 2015 and drilled to TD at 4680 m in Triassic sediments belonging to the Åre Formation. As much as 37 days was counted as WOW for this well (31% of the rig time). Otherwise, no significant problem was encountered in the operations. Log data quality is an issue in the 8.5" section, there is strong effects from stick & pull on the logging sensors. The well was drilled with Seawater and hi-vis pills down to 404 m, with KCI/Polymer/GEM mud from 404 m to 1610 and with XP-07 oil based mud from 1610 m to TD.In the Lysing and Lange formations hydrocarbons (most likely gas) were found in primarily tight sandstones of poor quality. In total 4.5 m Cretaceous hydrocarbon pay was identified, consisting of several thin sandstones. Below BCU, a thin Spekk Formation rested directly on the lower part of the Tilje Formation. The Garn, Ile, and Tofte formations were eroded in the well. Light oil was found in the Tilje and Åre formations, from 4307.5 m down to the OWC at 4424.3 m. The reservoir quality in the Jurassic targets varied from medium to poor.One core was cut with 100% recovery from 4340 to 4357.50 m. Fluid samples were taken at 4344.75 m (light oil), 4419.74 (light oil), 4430 m (water), and 4501 m (water)The well was permanently abandoned on 5 May 2015 as an oil 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]1620.004681.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet14340.04357.9[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]17.9Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDST4345.000.00OILYES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet2862865901590193319332470247025372597259727162876343834383531427042994299430843084331 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL31504100FMP FMS43094653GR DI2004670LWD-DIR GR RES ND NBGR NBRES PWD42294340LWD-DIR GR RES ND PWD43574680LWD-DIR GR RES ND SON PWD25694229LWD-DIR GR RES PWD4041610LWD-DIR GR RES SON PWD16102569LWD-PWD25692569SL MR40504679SLAM ACI42004670SWC43094440VSP11584668 -
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 formasjonstestCONDUCTOR30401.036404.00.00PILOT HOLE857.012 1/4857.00.00SURF.COND.201603.0261610.00.00INTERM.13 3/82561.517 1/22569.01.74LOTINTERM.9 7/84223.012 1/44229.01.96FITOPEN HOLE4680.08 1/24680.02.15LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4041.3123.0KCL/Polymer/GEM6671.3329.0KCL/Polymer/GEM8571.2933.0KCL/Polymer/GEM11271.3330.0KCL/Polymer/GEM13791.6433.0XP-07 Low ECD OBM14661.3326.0KCL/Polymer/GEM15101.6435.0XP-07 Low ECD OBM15151.6438.0XP-07 Low ECD OBM15191.8032.0XP-07 Low ECD OBM16101.3320.0KCL/Polymer/GEM16131.5434.0XP07 Low ECD OBM24951.6448.0XP07 Low ECD OBM25711.7944.0XP07 Low ECD OBM31271.8053.0XP07 Low ECD OBM41301.9947.0XP-07 Low ECD OBM42161.8040.0XP-07 Low ECD OBM43201.8745.0XP-07 Low ECD OBM43571.9548.0XP-07 Low ECD OBM46801.9641.0XP-07 Low ECD OBM