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Generated 10.02.2012 |
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| NPDID wellbore: | 165 | |
| Well name: | 1/3-2 | |
| Drilling operator name: | A/S Norske Shell | |
| Geodetic datum: | ED50 | |
| Coordinates: | 56° 56` 10.00`` N | 2° 45` 00.00`` E |
| UTM coordinates: | 6310443.20 N | 484786.28 E |
| UTM zone: | 31 | |
| Drilled in production licence: | 011 | |
| Area: | NORTH SEA | |
| Drill permit: | 26-L | |
| Drilling facility: | SEDNETH I | |
| Drilling days: | 75 | |
| Wellbore entry date: | 14.05.1969 | |
| Wellbore completion date: | 27.07.1969 | |
| Original wellbore purpose: | WILDCAT | |
| Wellbore purpose: | WILDCAT | |
| Wellbore status: | P&A | |
| Wellbore contents: | DRY | |
| Discovery wellbore: | NO | |
| Seismic location: | LINE 5656 SP.5125 | |
| Kelly bushing elevation (KB) [m]: | 26 | |
| Water depth [m]: | 73 | |
| Total Depth (MD) [m]: | 4297 | |
| Final vertical depth (TVD) [m]: | ||
| Max inclination [°]: | ||
| Bottom hole temperature [°C]: | 143 | |
| Oldest penetrated age: | EARLY CRETACEOUS | |
| Oldest penetrated formation: | SOLA FM | |
| Note: All depths, except the water depth, are relative to kelly bushing (RKB) | ||
General
Well 1/3-2 was drilled on the crest of a salt-induced anticline on the Hidra High in the North Sea.The main objective was possible L. Tertiary sands, well developed and productive in Phillips 7/11-1. Secondary objective was the Late Cretaceous chalky limestone, which had given shows in 1/3-1.
Operations and results
Wildcat well 1/3-2 was spudded with the semi-submersible installation Sedneth I on 14 May 1969 and drilled to TD at 4297 m in the Early Cretaceous Sola Formation. When drilling out of the 20" casing shoe, circulation was lost immediately, and the lost circulation zone had to be cemented off. The plastic clays caused continuous troubles, such as bit balling and plugged shaker screens, and the hole had to be reamed and washed several times. Below 3378 m diamond bits were used, and the drilling was interrupted frequently because of leaking bumper subs. The well was drilled water based with a 1 - 4 % addition of diesel through most of the well bore.
Tertiary sands were not developed, and whilst thick Late Cretaceous chalky limestone was found as predicted, there were no hydrocarbon bearing intervals in it, and reservoir qualities were poor. No source rock intervals were encountered, and only very minor traces of higher hydrocarbons were detected in the Late Paleocene-Early Eocene section, and in the interval 3761 to 3901 m in the Hod Formation.
A small core recovered by junk basket was taken at 3589.02 - 3589.5 m. No wire line fluid samples were taken.
The well was permanently abandoned on 27 July 1969 as a dry well.
Testing
No drill stem test was performed.
No cuttings in this wellbore.
Core length [m]: 30.00
| Core number | Interval |
|---|---|
| 1 | 3589.02-3589.32 |
No scanned core photos available
No palynological slides in this wellbore.
No oil samples available.
| Type | Casing diam. [inch] | Depth below KB [m] | Hole diam. [inch] | Hole depth below KB [m] | Lot mud eqv. [g/cm3] |
|---|---|---|---|---|---|
| CONDUCTOR | 30 | 147.0 | 36 | 147.0 | |
| SURF.COND. | 20 | 406.0 | 26 | 412.0 | |
| INTERM. | 13 3/8 | 1525.0 | 17 1/2 | 1531.0 | |
| INTERM. | 9 5/8 | 3204.0 | 12 1/4 | 3213.0 | |
| OPEN HOLE | 4298.0 | 8 1/2 | 4298.0 |
| Depth MD [m] | Mud weight [g/cm3] | Visc. [MPa.s] | Yield [pnt Pa.] | Mud type | Date measured |
|---|---|---|---|---|---|
| 147 | 1.07 | 120.0 | waterbased | ||
| 381 | 1.10 | 100.0 | waterbased | ||
| 831 | 1.42 | 64.0 | waterbased | ||
| 1530 | 1.44 | 49.0 | waterbased | ||
| 2209 | 1.49 | 54.0 | waterbased | ||
| 2824 | 1.61 | 57.0 | waterbased | ||
| 3185 | 1.73 | 51.0 | waterbased | ||
| 3779 | 1.61 | 52.0 | waterbased | ||
| 4281 | 1.60 | 44.0 | waterbased |
No drill stem test in this wellbore.
| Log type | Intervals logged [m] |
|---|
| Top depth [m] | Litostratigraphic unit |
|---|---|
| 98 | NORDLAND GP |
| 1533 | HORDALAND GP |
| 2964 | ROGALAND GP |
| 2964 | BALDER FM |
| 2978 | SELE FM |
| 3067 | LISTA FM |
| 3136 | VÅLE FM |
| 3207 | SHETLAND GP |
| 3207 | EKOFISK FM |
| 3270 | TOR FM |
| 3729 | HOD FM |
| 4024 | BLODØKS FM |
| 4060 | HIDRA FM |
| 4131 | CROMER KNOLL GP |
| 4131 | RØDBY FM |
| 4229 | SOLA FM |
No composite log presently available.
No geochemical data presently available. Regional geochemical studies which include data from this well may however be filed on a different well.
| 1_3_2_Completion_log | (Format:PDF. Size: 2.505 Mb ) |
| 1_3_2_Well_Resume | (Format:PDF. Size: 24.349 Mb ) |
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| WDSS_General_Information | (Format:PDF. Size: 0.185 Mb ) |
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| NPD_Paper_No.15_Lithology__Well_1_3_2 | (Format:PDF. Size: 14.632 Mb ) |
| NPD_Paper_No.15_Interpreted_Lithology_log__Well_1_3_2 | (Format:PDF. Size: 63.105 Mb ) |
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