32/4-3 S
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Brønnhistorie
GeneralWell 32/4-3 S is the replacement well for 32/4-3. It was drilled to test the Gladsheim prospect on the Horda Platform in the Stord Basin Area. The prospect is located approximately 25 km east of Troll East and 30 km from shore. The primary objective was to prove oil migration into the Sognefjord Formation and establish the corresponding fluid contacts. Secondary objective was to test the gas potential in Mid- and Early Jurassic Brent Group, Johansen Formation and Statfjord Group. A tertiary objective was to verify Late Jurassic shales sealing capacity and acquire data to confirm CO2 storage potential and to extend the well into the Lunde Formation for this reason.Operations and resultsThe well had a shallow gas Class 1, based on the shallow gas experience from the main well NO 32/4-2. Acoustic logs in 32/4-2 indicated gas at a depth between 440-510 m.Wildcat well 32/4-3 S was spudded with the semi-submersible installation West Hercules on 23 September 2019. After setting the conductor at 372.40 m, an 8 ½” pilot hole was drilled to 461 m and the well was visually flow checked and observed stable. Well was then displaced to displacement mud and the BHA lubricated to 361 m when gas bubbles were observed. The BHA was run back to TD and well displaced back to sea water and flow checked again. An increasing amount of gas was observed before displacing back to 1.30 sg mud. No water flow was observed. With a stable well the BHA was lubricated out of hole. The pilot hole was then cemented back, and a 26” section drilled to seal off the shallow gas zone with a 20” Casing. BOP was set and drilling commenced without further significant issues. TD was reached at 2017 m (2000 m TVD) m in the Late Triassic Lunde Formation. The well was drilled with sea water and hi-vis sweeps down to 435 m and with Glydril mud from 435 m to TD.The well found no hydrocarbons in any of the targets, and all sands proved water filled. The primary target, the Sognefjord Formation, had a gross thickness of 167 m and with good reservoir properties. Apart from the shallow gas flow, gas levels were generally low throughout the well and there were no shows in the sands drilled.Two cores were cut from 1196 to 1197.6 m and 1202.6 to 1209.5 m in the Draupne Formation to evaluate the cap rock properties and sealing capacity. Wireline logging including the Schlumberger XPT pressure tool was performed in the 8 ½” section. Water gradients were confirmed in all targets. No wire line fluid samples were taken.The well was permanently abandoned on 25 October 2019 as a dry well.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]440.002017.00 -
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 formasjonstestCONDUCTOR36372.042375.00.00SURF.COND.20433.026435.01.19FITINTERM.13 3/8593.017 1/2600.01.32FITLINER9 5/81192.012 1/41193.01.43LOTOPEN HOLE2017.08 1/22017.00.00 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CMR XPT11922001FMI SS8202017HRLA PEX HNGS11922017MWD LWD - PD ARC TELE6001193MWD LWD - TELE323374MWD LWD - TELE ARC374600MWD LWD - TELE ARC11932017MWD LWD - TELE ARC SS374461VSI4 GR5982017XLR12371975 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet3233235375375545546036307207447441101110112371248141515511645164516691669174617971823182318471847