Well Data Manager / Well Summary / 23/21- 2

23/21- 2

Decommissioned

Well Header

Well No
23/21- 2
NSTA DEN No
547
Well Name
--
Drill Seq No
2
Quadrant / Block
23 / 21
Surface Location
57.271571, 2.157392
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
1
Operator
CHRYSAOR LIMITED
Original Operator
--
Sub Area Operator
CHRYSAOR LIMITED
Licence No
P101
Licence Type
Production
Spud Date
1974-05-25
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

23/21- 2 Original parent: 23/21- 2J
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas and Condensate Well
Dev Type
--
Convention
--
Primary Target
A
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
85.34
TD MD (m)
3513.734
TD TVDSS (m)
--
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1974-05-25
TD Reached
1974-06-02
Completion Date
1974-07-26
Release Date
1978-07-26
23/21- 2J Sidetrack J
Abandoned Phase 3 Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
--
Dev Type
--
Convention
--
Primary Target
--
Well Seq
--
Datum Type
Rotary Table
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
85.34
TD MD (m)
3546.043
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1974-01-25
TD Reached
1974-05-20
Completion Date
1974-05-25
Release Date
1978-05-25

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
23/21- 2 Moray Mesozoic 2762.000 2734.445 Lloyds Register
Balder Tuff Cenozoic 2762.000 2734.445 Lloyds Register
Balder Cenozoic 2762.000 2734.445 Lloyds Register
Sele Mesozoic 2785.000 2757.290 Lloyds Register
Forties Sandstone Mesozoic 2809.000 2781.073 Lloyds Register
Lista Mesozoic 2873.000 2844.547 Lloyds Register
Montrose Mesozoic 2873.000 2844.547 Lloyds Register
Balmoral Sandstone Cenozoic 2873.000 2844.547 Lloyds Register
Maureen Mesozoic 2941.000 2912.030 Lloyds Register
Maureen Sandstone Mesozoic 2954.000 2924.934 Lloyds Register
Ekofisk Mesozoic 2991.000 2961.680 Lloyds Register
Chalk Mesozoic 2991.000 2961.680 Lloyds Register
Upper Cretaceous Chalk Mesozoic 3066.000 3036.281 Lloyds Register
Lower Cretaceous Undifferentiated Mesozoic 3390.000 3358.094 Lloyds Register
Cromer Knoll Mesozoic 3390.000 3358.094 Lloyds Register
Kimmeridge Clay 3428.000 3395.143 Lloyds Register
Humber Mesozoic 3428.000 3395.143 Lloyds Register
Fladen Mesozoic 3460.000 3426.192 Lloyds Register
Pentland Mesozoic 3460.000 3426.192 Lloyds Register

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
23/21- 2 6 9 4 8 19 4 3 1 11 View
23/21- 2J 0 0 0 0 0 0 0 0 0

Hydrocarbon Occurrence (11)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
23/21- 2 DST DST 5 -- 2773.7 2785.3 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 4D -- 2821.2 2881.6 Label / Forties
23/21- 2 DST DST 4 -- 2845.3 2881.3 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 4A -- 2845.3 2881.3 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 4B -- 2845.3 2881.3 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 4C -- 2845.4 2881.3 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 3 -- 2893.8 2897.1 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 2 -- 2913.9 2916.9 Not used for labelling, multiple DSTs in same play / Forties
23/21- 2 DST DST 1 -- 3471.7 3500.6 Not used for labelling, multiple DSTs in same play / Middle Jurassic
23/21- 2 DST DST 1A -- 3471.7 3500.6 Not used for labelling, multiple DSTs in same play / Middle Jurassic
23/21- 2 DST DST 1B -- 3471.7 3500.7 Label / Middle Jurassic

Rock Samples (14)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
23/21- 2 Cuttings 169.16 3544.82 -- -- .
23/21- 2 Core #1 2782.21 2783.59 CORE LABORATORIES, INC. NO ANALYSIS .
23/21- 2 ↳ Core Plug #1 2782.214 -- CORE LABORATORIES, INC. NO ANALYSIS --
23/21- 2 Core #2 2791.36 2796.39 φ 22.2% (n=2) · Kh 0.0 mD (n=2) · Kv 0.0 mD (n=2) · Density 2.75 (n=2) · CORE LABORATORIES, INC. SS, LT GY, FG, HD. CALC, W/DK, GY SH LAMIN.; SS, LT GY, FG, HD. CALC, W/DK, GY SH LAMIN., GDG TO SDY LST. .
23/21- 2 ↳ Plug 01 2791.968 -- φ 24.5% · Kh 0.0 mD · Kv 0.0 mD · Density 2.73 · CORE LABORATORIES, INC. SS, LT GY, FG, HD. CALC, W/DK, GY SH LAMIN. --
23/21- 2 ↳ Plug 02 2793.98 -- φ 19.9% · Kh 0.0 mD · Kv 0.0 mD · Density 2.76 · CORE LABORATORIES, INC. SS, LT GY, FG, HD. CALC, W/DK, GY SH LAMIN., GDG TO SDY LST. --
23/21- 2 Core #3 2823.97 2837.99 φ 19.9% (n=7) · Kh 1.8 mD (n=7) · Kv 2.1 mD (n=7) · Density 2.65 (n=7) · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT, F-MG, (CALC), TR CLAUC; SS, GY, FG, HD, NON CALC, ARG CMT.; SS, GY, FG, HD, NON CALC, ARG CMT., (CALC), FG, NON CALC, TR MICA; SS, GY, FG, HD, NON CALC, ARG CMT., (CALC). F-MG, TR GLAUC .
23/21- 2 ↳ Plug 03 2824.277 -- φ 17.5% · Kh 0.1 mD · Kv 0.0 mD · Density 2.65 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT. --
23/21- 2 ↳ Plug 04 2825.953 -- φ 19.3% · Kh 0.7 mD · Kv 0.6 mD · Density 2.63 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT. --
23/21- 2 ↳ Plug 05 2828.239 -- φ 21.4% · Kh 5.7 mD · Kv 4.4 mD · Density 2.65 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT., (CALC). F-MG, TR GLAUC --
23/21- 2 ↳ Plug 06 2830.373 -- φ 19.2% · Kh 0.5 mD · Kv 0.4 mD · Density 2.65 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT., (CALC), FG, NON CALC, TR MICA --
23/21- 2 ↳ Plug 07 2832.659 -- φ 21.1% · Kh 0.8 mD · Kv 0.9 mD · Density 2.65 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT, F-MG, (CALC), TR CLAUC --
23/21- 2 ↳ Plug 08 2833.878 -- φ 20.3% · Kh 0.7 mD · Kv 0.9 mD · Density 2.65 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT. --
23/21- 2 ↳ Plug 09 2836.774 -- φ 20.4% · Kh 4.2 mD · Kv 7.7 mD · Density 2.64 · CORE LABORATORIES, INC. SS, GY, FG, HD, NON CALC, ARG CMT. --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
23/21- 2 59.8931999206543 3522.72607421875 10 0 2026-08-06 12:21:34.638027+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
23/21- 2
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 467.25840000000005 3518.4588000000003 19699
caliper CALI CGG Digital Well Logs 467.41080000000005 3521.202 20039
caliper MCAL CGG Digital Well Logs 2743.5048 2944.0632 1317
comp_sonic DT CGG Digital Well Logs 478.0788 3506.5716 19795
deep_resistivity LLD CGG Digital Well Logs 2580.132 3512.9724 6114
deep_resistivity ILD CGG Digital Well Logs 467.41080000000005 3514.9536000000003 19998
density_correction DRHO CGG Digital Well Logs 467.41080000000005 3517.8492 19695
gamma_ray GRD CGG Digital Well Logs 2570.226 3518.154 3822
gamma_ray GRL CGG Digital Well Logs 2579.2176 3507.4860000000003 6075
gamma_ray GR CGG Digital Well Logs 59.8932 3522.726 22699
micro_resistivity MLL CGG Digital Well Logs 2743.3524 2944.0632 1318
neutron_por NPHI CGG Digital Well Logs 2579.9796 3513.2772 6100
shallow_resistivity SFLU CGG Digital Well Logs 467.41080000000005 3514.8012000000003 19997
shallow_resistivity LLS CGG Digital Well Logs 2579.9796 3512.82 6114
sp SP CGG Digital Well Logs 469.5444 3516.9348 19997

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
23/21- 2 109 3546.213 3509.844 D:\BigSpatial\nsta_raw\CGG_Deviation\23-21-2 1127be_CGG-Deviation.xlsx
23/21- 2J 0 -- -- --

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