General information Attribute ValueWellbore name7228/1-1TypeEXPLORATIONPurposeWILDCATStatusP&APress releaseFactmaps in new windowMain areaBARENTS SEAWell name7228/1-1Seismic locationSurvey BG0804.inline 1949 & xline 2736Production licenceDrilling operatorNorwegian Energy Company ASADrill permit1397-LDrilling facilityDrilling days29Entered date29.03.2012Completed date26.04.2012Release date15.03.2013Publication date15.03.2013Purpose - plannedWILDCATReentryNOContentDRYDiscovery wellboreNOKelly bushing elevation [m]40.0Water depth [m]351.0Total depth (MD) [m RKB]1714.0Final vertical depth (TVD) [m RKB]1711.5Maximum inclination [°]7.9Oldest penetrated ageMIDDLE TRIASSICOldest penetrated formationKOBBE FMGeodetic datumED50NS degrees72° 51' 0.92'' NEW degrees28° 18' 55.19'' ENS UTM [m]8084472.59EW UTM [m]543289.80UTM zone35NPDID wellbore6820
Wellbore historyGeneralWell 7228/1-1 was drilled on the Eik Prospect in the Barents Sea on the eastern border of the Bjarmeland Platform. The Eik prospect is a salt-induced structure located close to the northern part of the Nyslepp Fault Complex, which separates the Bjarmeland Platform from the Nordkapp Basin. The main target was the Early Jurassic - Late Triassic sandstones contained in the Kapp Toscana Group. Secondary Targets were Late Triassic Intra-Snadd Formation sandstone and sandstones in the Middle Triassic Kobbe Formation.Operations and resultsWildcat well 7228/1-1 was spudded with the semi-submersible installation Transocean Barents on 29 March 2012 and drilled to TD at 1714 m in the Middle Triassic Kobbe Formation. No significant problem was encountered in the operations. The well was drilled with seawater and hi-vis pills down to 755 m and with Glydril mud from 755 m to TD.Good quality reservoir sandstones were found in the Kapp Toscana Group (Nordmela, Tubåen, and Fruholmen formations); 100 m net reservoir in total. The Intra Snadd sand secondary target had 32 m of net reservoir with very good porosities. Only poor reservoir intervals were found within the Kobbe Formation, with low net to gross values and low porosities. None of the reservoir intervals were hydrocarbon-bearing. Weak Shows were reported from cuttings evaluation over Tubåen and Fruholmen sands from 976 m to 1092 m. The shows were described as fair spotty yellow direct fluorescence, very slow dull blue white fluorescence cut, no visible cut and fair dull blue white residual ring. No shows were observed below Fruholmen Formation. No bottom hole temperature at final TD is given on the fact pages, due to no reliable downhole temperature obtained.No cores were cut. A dry case wire line logging program was performed. No wire line fluid samples were taken.The well was permanently abandoned on 26 April 2012 as a dry well.TestingNo drill stem test was performed.
Cuttings at the NPD
Cuttings at the NPDCuttings available for sampling?YES Cuttings at the NPDCutting sample, top depth [m]Cutting samples, bottom depth [m]765.001714.00
LogsLog typeLog top depth [m]Log bottom depth [m]MWD - DIR INC392459MWD - GR RES SON DEN NEU4591714PEX HRLA MSIP XPT8401713PEX MSIP PPC GPIT EDTC742887VSI4901690
Casing and leak–off tests
Casing and leak–off testsCasing typeCasing diam.
[m]LOT/FIT mud eqv.
[g/cm3]Formation test typeCONDUCTOR30455.036459.00.00LOTSURF.COND.13 3/8749.017 1/2755.00.00LOTPILOT HOLE755.09 7/8755.00.00LOTINTERM.9 5/8884.012 1/4889.01.45LOTOPEN HOLE1714.08 1/21714.01.64LOT
Drilling mudDepth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured4001.0221.0SW/Bentonite Sweeps4501.0220.0SW/Bentonite Sweeeps4581.3920.0Bentonite7551.2423.0Glydril7881.2418.0Glydril8891.2419.0Glydril11851.2919.0Glydril15911.2920.0Glydril17141.2919.0Glydril
Pressure plotsThe pore pressure data is sourced from well logs if no other source is specified. In some wells where pore pressure logs do not exist, information from Drill stem tests and kicks have been used. The data has been reported to the NPD, and further processed and quality controlled by IHS Markit. Pressure plotsDocument nameDocument formatDocument size [KB]0.17