34/8-14 A
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Generell informasjon
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Brønnhistorie
GeneralWell 34/8-14 S with geological sidetracks A, B, C, and D were drilled on the Pan/Pandora prospect on the structural trend between the Visund and the Gimle Fields in the northern North Sea. The western part of the structure, the Pan structure, is defined by rotated fault blocks while the eastern part, the Pandora structure, consists of slided degradational blocks. The general objective of all the wells was to test the hydrocarbon potential in the structure. Wells 34/8-14 S (Pan) and 34/8-14 A (Pandora) were drilled to provide important information on the hydrocarbon phases and HC/water contacts. Both wells both proved hydrocarbons and sidetracks B, C, and D were subsequently drilled to further delineate hydrocarbon contacts and reserves.Operations and resultsAppraisal well 34/8-14 A was kicked off at 1282 m in well 34//8-14 S with the semi-submersible installation Borgland Dolphin on 20 October 2008 and drilled to TD at 3838 m (3075 m TVD) in the Early Jurassic Drake Formation. The well was drilled with XP-07 OBM from kick-off to TD.Top Brent Group in well 34/8-14 A was encountered at 3500 m (2849 m TVD RKB) and proved to be oil and gas bearing. The quality of the reservoir sandstones of the Tarbert Formation was excellent. A GOC was found at 3579 m (2902 m TVD RKB). Oil was found down-to the Ness shales at 3591 m (2910 m TVD RKB). Above top Brent Group no oil shows were observed, and gas levels were low.Three cores were cut from 3504.6 to 3570 m in well 34/8-14 A. The MDT was run for pressure points and fluid samples. Samples were obtained at 3514 m (gas), 3574 m (gas), and 3585 m (oil).The well was plugged back and permanently abandoned on 1 December 2008 as an oil and gas appraisal well.TestingNo drill stem test was performed. -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13504.63531.7[m ]23532.03550.8[m ]33558.03569.5[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]57.3Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
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.9 5/82239.012 1/42246.00.00LOTOPEN HOLE3838.08 1/23838.00.00LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]LWD - CORE ASSY35043570LWD - GR RES12572246LWD - GR RES DEN NEU SVWD12572246LWD - GR RES DEN NEU SVWD35703838MDT35143610MDT35803585SONIC SCANNER OBMI17753800 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet323100211151397145214821507191519152011202821872187237634493471347134743500350035403572361737203720 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling13521.3917.0OBM-Low ECD17231.4823.0OBM-Low ECD22601.5517.0OBM-Low ECD23041.6016.0OBM-Low ECD24511.6020.0OBM-Low ECD35701.6018.0OBM-Low ECD38381.6020.0OBM-Low ECD -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2060.0[m]DCBIOSTRAT2080.0[m]DCBIOSTR2100.0[m]DCBIOSTR2120.0[m]DCBIOSTR2140.0[m]DCBIOSTR2160.0[m]DCBIOSTR2180.0[m]DCBIOSTR2200.0[m]DCBIOSTR2210.0[m]DCBIOSTR2250.0[m]DCBIOSTR2260.0[m]DCBIOSTR2280.0[m]DCBIOSTR2300.0[m]DCBIOSTR2320.0[m]DCBIOSTR2340.0[m]DCBIOSTR2360.0[m]DCBIOSTR2380.0[m]DCBIOSTR2400.0[m]DCBIOSTR2420.0[m]DCBIOSTR2430.0[m]DCBIOSTR2460.0[m]DCBIOSTR2480.0[m]DCBIOSTR2500.0[m]DCBIOSTR2520.0[m]DCBIOSTR2540.0[m]DCBIOSTR2560.0[m]DCBIOSTR2570.0[m]DCBIOSTR2600.0[m]DCBIOSTR2620.0[m]DCBIOSTR2640.0[m]DCBIOSTR2660.0[m]DCBIOSTR2680.0[m]DCBIOSTR2700.0[m]DCBIOSTR2720.0[m]DCBIOSTR2740.0[m]DCBIOSTR2760.0[m]DCBIOSTR2780.0[m]DCBIOSTR2800.0[m]DCBIOSTR2820.0[m]DCBIOSTR2840.0[m]DCBIOSTR2860.0[m]DCBIOSTR2880.0[m]DCBIOSTR2900.0[m]DCBIOSTR2920.0[m]DCBIOSTR2940.0[m]DCBIOSTR2960.0[m]DCBIOSTR2980.0[m]DCBIOSTR3000.0[m]DCBIOSTR3020.0[m]DCBIOSTR3040.0[m]DCBIOSTR3060.0[m]DCBIOSTR3080.0[m]DCBIOSTR3100.0[m]DCBIOSTR3120.0[m]DCBIOSTR3140.0[m]DCBIOSTR3160.0[m]DCBIOSTR3180.0[m]DCBIOSTR3200.0[m]DCBIOSTR3220.0[m]DCBIOSTR3240.0[m]DCBIOSTR3260.0[m]DCBIOSTR3280.0[m]DCBIOSTR3300.0[m]DCBIOSTR3320.0[m]DCBIOSTR3340.0[m]DCBIOSTR3360.0[m]DCBIOSTR3380.0[m]DCBIOSTR3400.0[m]DCBIOSTR3410.0[m]DCBIOSTR3420.0[m]DCBIOSTR3430.0[m]DCBIOSTR3440.0[m]DCBIOSTR3450.0[m]DCBIOSTR3460.0[m]DCBIOSTR3470.0[m]DCBIOSTR3475.0[m]DCBIOSTR3480.0[m]DCBIOSTR3485.0[m]DCBIOSTR3490.0[m]DCBIOSTR3495.0[m]DCBIOSTR3500.0[m]DCBIOSTR3570.0[m]DCBIOSTR3580.0[m]DCBIOSTR3590.0[m]DCBIOSTR3600.0[m]DCBIOSTR3610.0[m]DCBIOSTR3620.0[m]DCBIOSTR3630.0[m]DCBIOSTR3640.0[m]DCBIOSTR3650.0[m]DCBIOSTR3660.0[m]DCBIOSTR3670.0[m]DCBIOSTR3680.0[m]DCBIOSTR3690.0[m]DCBIOSTR3700.0[m]DCBIOSTR3705.0[m]DCBIOSTR3710.0[m]DCBIOSTR3715.0[m]DCBIOSTR3720.0[m]DCBIOSTR3725.0[m]DCBIOSTR3730.0[m]DCBIOSTR3735.0[m]DCBIOSTR3740.0[m]DCBIOSTR3745.0[m]DCBIOSTR3750.0[m]DCBIOSTR3755.0[m]DCBIOSTR3760.0[m]DCBIOSTR3765.0[m]DCBIOSTR3770.0[m]DCBIOSTR3775.0[m]DCBIOSTR3780.0[m]DCBIOSTR3785.0[m]DCBIOSTR3790.0[m]DCBIOSTR3795.0[m]DCBIOSTR3800.0[m]DCBIOSTR3805.0[m]DCBIOSTR3810.0[m]DCBIOSTR3815.0[m]DCBIOSTR3820.0[m]DCBIOSTR3825.0[m]DCBIOSTR3830.0[m]DCBIOSTR3835.0[m]DCBIOSTR3838.0[m]DCBIOSTR