Well Data Manager / Well Summary / 20/01- 12

20/01- 12

Decommissioned

Well Header

Well No
20/01- 12
NSTA DEN No
23600
Well Name
--
Drill Seq No
12
Quadrant / Block
20 / 1
Surface Location
57.868709, -0.934950
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
CNOOC PETROLEUM EUROPE LIMITED
Original Operator
--
Sub Area Operator
CNOOC PETROLEUM EUROPE LIMITED
Licence No
P928
Licence Type
Production
Spud Date
2012-05-09
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (4)

20/01- 12 Original
Abandoned Phase 3 View Log Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
K
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
26.213
Ground Elev (m)
--
Water Depth (m)
93.88
TD MD (m)
1239.012
TD TVDSS (m)
1210.266
TD Datum Depth (m)
26.213
TD Datum Type
Rotary Table
Spud Date
2012-05-09
TD Reached
2012-05-18
Completion Date
2012-05-26
Release Date
2016-05-26
20/01- 12A Sidetrack A parent: 20/01- 12
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
K
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
26.213
Ground Elev (m)
--
Water Depth (m)
93.88
TD MD (m)
3478.987
TD TVDSS (m)
3005.633
TD Datum Depth (m)
26.213
TD Datum Type
Rotary Table
Spud Date
2012-05-26
TD Reached
2012-06-22
Completion Date
2012-08-05
Release Date
2016-08-05
20/01- 12Y Sidetrack Y parent: 20/01- 12Z
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
Y
Well Seq
WB3
Datum Type
Rotary Table
Datum Elev (m)
26.213
Ground Elev (m)
--
Water Depth (m)
93.88
TD MD (m)
4114.800
TD TVDSS (m)
3026.341
TD Datum Depth (m)
26.213
TD Datum Type
Rotary Table
Spud Date
2012-08-25
TD Reached
2012-09-09
Completion Date
2012-09-23
Release Date
2016-09-23
20/01- 12Z Sidetrack Z parent: 20/01- 12A
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
Z
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
26.213
Ground Elev (m)
--
Water Depth (m)
93.88
TD MD (m)
3749.040
TD TVDSS (m)
2963.351
TD Datum Depth (m)
26.213
TD Datum Type
Rotary Table
Spud Date
2012-08-05
TD Reached
2012-08-17
Completion Date
2012-08-24
Release Date
2016-08-24

Formation Tops (0)

No formation tops ingested for this well.

Lithology Intervals

No lithology intervals ingested for this well.

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
20/01- 12 0 0 0 0 0 0 0 0 0
20/01- 12A 0 0 0 20 0 1 0 0 2 View
20/01- 12Y 0 0 0 18 0 1 0 0 0 View
20/01- 12Z 0 0 0 18 0 1 0 0 0 View

Hydrocarbon Occurrence (3)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
20/01- 12A DST DST 2 -- 3137.3 3152.9 Label / Upper Jurassic
20/01- 12A Mixed shows OWGS BZU4 3139.1352 -- 44 m thick
20/01- 12A DST DST 1 -- 3990.1 3175.1 Not used for labelling, multiple DSTs in same play / Upper Jurassic

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
20/01- 12 91.44000244140625 1219.2000732421875 4 0 2026-08-06 09:48:04.974301+00 View Log
20/01- 12A 111.86160278320312 3469.385986328125 10 0 2026-08-06 17:10:54.879071+00 View Log
20/01- 12Y 1146.6575927734375 4110.990234375 9 0 2026-08-06 17:11:04.992678+00 View Log
20/01- 12Z 1099.26123046875 3743.5537109375 9 0 2026-08-06 17:11:12.243295+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
20/01- 12
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
deep_resistivity P40H CGG Digital Well Logs 193.548 1219.2 6731
gamma_ray GR CGG Digital Well Logs 91.44 1219.2 7401
med_resistivity P28H CGG Digital Well Logs 193.548 1219.2 6731
shallow_resistivity P16H CGG Digital Well Logs 193.548 1219.2 6731
20/01- 12A
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 3002.8896 3469.386 3062
caliper CAL CGG Digital Well Logs 2998.3176000000003 3423.5136 2791
comp_sonic DTC CGG Digital Well Logs 1115.4156 3448.8120000000004 15296
comp_sonic DT24 CGG Digital Well Logs 3003.0420000000004 3447.8976000000002 2920
deep_resistivity P40H CGG Digital Well Logs 191.7192 3466.6428 21402
density_correction DRHO CGG Digital Well Logs 3002.8896 3469.386 3062
gamma_ray GR CGG Digital Well Logs 111.86160000000001 3469.2336 22029
med_resistivity P34H CGG Digital Well Logs 1110.0816 2984.9064000000003 12303
med_resistivity A34H CGG Digital Well Logs 1110.0816 2984.9064000000003 12303
med_resistivity P28H CGG Digital Well Logs 191.7192 3466.6428 21402
neutron_por TNPH CGG Digital Well Logs 3002.8896 3467.2524000000003 3033
pef PEF CGG Digital Well Logs 3002.8896 3469.386 3062
potassium K CGG Digital Well Logs 2987.9544 3444.6972 2998
shallow_resistivity P16H CGG Digital Well Logs 191.7192 3466.6428 21402
shear_sonic DTS CGG Digital Well Logs 1116.1776 3448.8120000000004 9197
thorium TH CGG Digital Well Logs 2987.9544 3444.6972 2998
20/01- 12Y
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 1148.6388 4109.6184 19133
comp_sonic DTCO CGG Digital Well Logs 1154.7348 4083.1008 19089
deep_resistivity P40H CGG Digital Well Logs 1172.1084 4107.942 19264
density_correction DRHO CGG Digital Well Logs 1148.6388 4109.6184 19135
gamma_ray GR_ARC CGG Digital Well Logs 1172.1084 4110.99 19285
gamma_ray GR_ARC_FILT CGG Digital Well Logs 1172.1084 4110.99 19285
med_resistivity P28H CGG Digital Well Logs 1172.1084 4107.942 19264
neutron_por TNPH CGG Digital Well Logs 1146.6576 4107.4848 19209
pef PEF CGG Digital Well Logs 1148.6388 4109.6184 19135
shallow_resistivity P16H CGG Digital Well Logs 1172.1084 4107.942 19264
shear_sonic DTSM CGG Digital Well Logs 1154.7348 4083.1008 15649
20/01- 12Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 1113.2820000000002 3742.1820000000002 17058
comp_sonic DTCO CGG Digital Well Logs 1115.4156 3720.846 17089
comp_sonic DT24 CGG Digital Well Logs 3291.84 3720.846 2816
deep_resistivity P40H CGG Digital Well Logs 1113.4344 3740.5056000000004 17208
density_correction DRHO CGG Digital Well Logs 1113.2820000000002 3742.1820000000002 17058
gamma_ray GR_ARC CGG Digital Well Logs 1099.2612000000001 3743.5536 17352
gamma_ray GR_ARC_FILT CGG Digital Well Logs 1099.2612000000001 3743.5536 17352
med_resistivity P28H CGG Digital Well Logs 1113.4344 3740.5056000000004 17208
med_resistivity P34H CGG Digital Well Logs 1113.2820000000002 3327.5016 14530
med_resistivity A34H CGG Digital Well Logs 1113.2820000000002 3327.5016 14530
neutron_por TNPH CGG Digital Well Logs 1099.2612000000001 3740.0484 17308
pef PEF CGG Digital Well Logs 1113.2820000000002 3742.1820000000002 17058
potassium K CGG Digital Well Logs 3299.0028 3717.1884 2743
shallow_resistivity P16H CGG Digital Well Logs 1113.4344 3740.5056000000004 17208
shear_sonic DTSM CGG Digital Well Logs 1115.568 3720.846 11594
thorium TH CGG Digital Well Logs 3299.0028 3717.1884 2743

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
20/01- 12 41 1239.012 1210.267 D:\BigSpatial\nsta_raw\CGG_Deviation\20-1-12 502277k-CGG_Deviation.xlsx
20/01- 12A 127 3478.987 3005.632 D:\BigSpatial\nsta_raw\CGG_Deviation\20-1-12A 502278ba-CGG_Deviation.xlsx
20/01- 12Y 158 4114.800 3026.341 D:\BigSpatial\nsta_raw\CGG_Deviation\20-1-12Y 502279bg-CGG_Deviation.xlsx
20/01- 12Z 136 3749.040 2963.351 D:\BigSpatial\nsta_raw\CGG_Deviation\20-1-12Z 502280bb-CGG_Deviation.xlsx

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