30/23a- 3

Decommissioned

Well Header

Well No
30/23a- 3
NSTA DEN No
2760
Well Name
--
Drill Seq No
3
Quadrant / Block
30 / 23 a
Surface Location
56.193962, 2.554845
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
ARCO BRITISH LIMITED, LLC
Original Operator
--
Sub Area Operator
ARCO BRITISH LIMITED, LLC
Licence No
P188
Licence Type
Production
Spud Date
1985-09-03
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

30/23a- 3 Original
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
C
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
26.213
Ground Elev (m)
--
Water Depth (m)
79.55
TD MD (m)
3124.200
TD TVDSS (m)
3095.290
TD Datum Depth (m)
26.213
TD Datum Type
Kelly Bushing
Spud Date
1985-09-03
TD Reached
1985-10-01
Completion Date
1985-10-07
Release Date
1989-10-07

Formation Tops (26)

Wellbore Formation Era MD (m) TVDSS (m) Provider
30/23a- 3 Horda Cenozoic 2033.000 2006.709 Lloyds Register
Stronsay Cenozoic 2033.000 2006.709 Lloyds Register
Balder Tuff Cenozoic 2441.000 2414.564 Lloyds Register
Moray Mesozoic 2441.000 2414.564 Lloyds Register
Balder Cenozoic 2441.000 2414.564 Lloyds Register
Sele Mesozoic 2459.000 2432.555 Lloyds Register
Montrose Mesozoic 2483.000 2456.544 Lloyds Register
Lista Mesozoic 2483.000 2456.544 Lloyds Register
Maureen Mesozoic 2519.000 2492.501 Lloyds Register
Chalk Mesozoic 2554.000 2527.454 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2554.000 2527.454 Lloyds Register
Valhall Mesozoic 2569.000 2542.433 Lloyds Register
Cromer Knoll Mesozoic 2569.000 2542.433 Lloyds Register
Humber Mesozoic 2573.000 2546.428 Lloyds Register
Kimmeridge Clay 2573.000 2546.428 Lloyds Register
Fulmar Mesozoic 2576.000 2549.424 Lloyds Register
Smith Bank Mesozoic 2582.000 2555.415 Lloyds Register
Heron Palaeozoic 2582.000 2555.415 Lloyds Register
Zechstein Palaeozoic 2664.000 2637.266 Lloyds Register
Turbot Anhydrite Palaeozoic 2664.000 2637.266 Lloyds Register
Halibut Carbonate Palaeozoic 2712.000 2685.089 Lloyds Register
Kupferschiefer Palaeozoic 2729.000 2702.027 Lloyds Register
Auk 2730.000 2703.023 Lloyds Register
Rotliegend 2730.000 2703.023 Lloyds Register
Old Red Sandstone 2973.000 2944.887 Lloyds Register
Old Red Palaeozoic 2973.000 2944.887 Lloyds Register

Lithology Intervals

30/23a- 3 Curve: SANDCOUNT 129 intervals  ·  MD 102.565 – 3109.874 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
LITH Sand (69)
Limestone (60)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
30/23a- 3 10 15 1 30 26 2 1 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (49)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
30/23a- 3 Cuttings 414.53 3124.2 -- -- .
30/23a- 3 Core #1 2575.56 2593.27 φ 15.7% (n=47) · Kh 2.4 mD (n=45) · Kv 0.9 mD (n=38) · So 0.2% (n=2) · Sw 83.4% (n=37) · Density 2.74 (n=45) · ROBERTSON -- .
30/23a- 3 ↳ Plug 1 2575.56 -- φ 24.3% · Kh 15.0 mD · Kv 6.5 mD · So 0.2% · Sw 79.9% · Density 2.68 · ROBERTSON -- --
30/23a- 3 ↳ Plug 2 2575.865 -- φ 21.5% · Kh 1.1 mD · Kv 1.2 mD · Density 2.70 · ROBERTSON -- --
30/23a- 3 ↳ Plug 3 2576.17 -- φ 22.9% · Kh 5.7 mD · Kv 3.4 mD · Sw 83.5% · Density 2.69 · ROBERTSON -- --
30/23a- 3 ↳ Plug 4 2576.474 -- φ 20.5% · Kh 2.7 mD · Kv 0.3 mD · So 0.2% · Sw 82.3% · Density 2.69 · ROBERTSON -- --
30/23a- 3 ↳ Plug 5 2576.779 -- φ 24.2% · Kh 10.0 mD · Kv 4.8 mD · Sw 87.0% · Density 2.70 · ROBERTSON -- --
30/23a- 3 ↳ Plug 6 2577.084 -- φ 22.0% · Kh 3.4 mD · Kv 1.6 mD · Sw 78.6% · Density 2.69 · ROBERTSON -- --
30/23a- 3 ↳ Plug 7 2577.389 -- φ 21.0% · Kh 1.2 mD · Kv 1.0 mD · Sw 84.1% · Density 2.68 · ROBERTSON -- --
30/23a- 3 ↳ Plug 8 2577.694 -- φ 21.6% · Kh 3.8 mD · Kv 1.7 mD · Sw 86.5% · Density 2.68 · ROBERTSON -- --
30/23a- 3 ↳ Plug 9 2577.998 -- φ 24.3% · Kh 11.0 mD · Kv 7.2 mD · Sw 78.9% · Density 2.68 · ROBERTSON -- --
30/23a- 3 ↳ Plug 10 2578.303 -- φ 21.4% · Kh 4.2 mD · Kv 2.9 mD · Sw 85.4% · Density 2.68 · ROBERTSON -- --
30/23a- 3 ↳ Plug 11 2578.608 -- φ 17.6% · Kh 0.7 mD · Kv 0.3 mD · Sw 82.6% · Density 2.69 · ROBERTSON -- --
30/23a- 3 ↳ Plug 12 2578.913 -- φ 19.4% · Kh 1.7 mD · Kv 1.9 mD · Density 2.70 · ROBERTSON -- --
30/23a- 3 ↳ Plug 13 2579.218 -- φ 12.1% · Kh 0.2 mD · Kv 0.0 mD · Sw 88.8% · Density 2.75 · ROBERTSON -- --
30/23a- 3 ↳ Plug 14 2579.522 -- φ 14.7% · Kh 0.5 mD · Sw 86.4% · Density 2.78 · ROBERTSON -- --
30/23a- 3 ↳ Plug 15 2579.827 -- φ 11.9% · Kh 0.3 mD · Kv 0.0 mD · Sw 78.4% · Density 2.76 · ROBERTSON -- --
30/23a- 3 ↳ Plug 16 2580.132 -- φ 16.3% · Kh 15.0 mD · Kv 0.1 mD · Sw 85.6% · Density 2.73 · ROBERTSON -- --
30/23a- 3 ↳ Plug 17 2580.437 -- φ 16.6% · Kh 0.4 mD · Kv 0.2 mD · Sw 82.6% · Density 2.73 · ROBERTSON -- --
30/23a- 3 ↳ Plug 18 2580.742 -- φ 10.2% · Kh 0.1 mD · Kv 0.0 mD · Sw 77.0% · Density 2.73 · ROBERTSON -- --
30/23a- 3 ↳ Plug 19 2581.046 -- φ 15.1% · Kh 0.1 mD · Kv 0.0 mD · Sw 87.0% · Density 2.78 · ROBERTSON -- --
30/23a- 3 ↳ Plug 20 2581.351 -- φ 15.0% · Kh 0.1 mD · Kv 0.0 mD · Density 2.76 · ROBERTSON -- --
30/23a- 3 ↳ Plug 21 2581.656 -- φ 16.2% · Kh 0.2 mD · Kv 0.0 mD · Sw 89.5% · Density 2.74 · ROBERTSON -- --
30/23a- 3 ↳ Plug 22 2581.961 -- φ 13.2% · Kh 0.5 mD · Kv 0.0 mD · Density 2.77 · ROBERTSON -- --
30/23a- 3 ↳ Plug 23 2582.266 -- φ 13.9% · Kh 0.1 mD · Sw 85.1% · Density 2.78 · ROBERTSON -- --
30/23a- 3 ↳ Plug 24 2582.57 -- φ 13.3% · Kh 1.1 mD · Sw 91.7% · Density 2.77 · ROBERTSON -- --
30/23a- 3 ↳ Plug 25 2582.875 -- φ 11.0% · Kh 0.0 mD · Kv 0.0 mD · Sw 78.7% · Density 2.78 · ROBERTSON -- --
30/23a- 3 ↳ Plug 26 2583.18 -- φ 13.0% · Kh 3.1 mD · Kv 0.0 mD · Density 2.73 · ROBERTSON -- --
30/23a- 3 ↳ Plug 27 2583.485 -- φ 11.4% · Kh 0.1 mD · Kv 0.0 mD · Sw 89.9% · Density 2.86 · ROBERTSON -- --
30/23a- 3 ↳ Plug 28 2583.79 -- φ 7.7% · Sw 92.9% · ROBERTSON -- --
30/23a- 3 ↳ Plug 38 2586.838 -- φ 13.6% · Kh 0.1 mD · Kv 0.0 mD · Density 2.78 · ROBERTSON -- --
30/23a- 3 ↳ Plug 39 2587.142 -- φ 13.5% · Kh 0.2 mD · Kv 0.0 mD · Sw 79.9% · Density 2.80 · ROBERTSON -- --
30/23a- 3 ↳ Plug 40 2587.447 -- φ 11.6% · Kh 0.5 mD · Kv 0.0 mD · Density 2.79 · ROBERTSON -- --
30/23a- 3 ↳ Plug 41 2587.752 -- φ 10.9% · Kh 0.0 mD · Kv 0.0 mD · Sw 83.6% · Density 2.76 · ROBERTSON -- --
30/23a- 3 ↳ Plug 42 2588.057 -- φ 13.4% · Kh 0.7 mD · Kv 0.0 mD · Sw 84.2% · Density 2.74 · ROBERTSON -- --
30/23a- 3 ↳ Plug 43 2588.362 -- φ 17.3% · Kh 0.1 mD · Kv 0.0 mD · Sw 77.8% · Density 2.71 · ROBERTSON -- --
30/23a- 3 ↳ Plug 44 2588.666 -- φ 14.9% · Kh 21.0 mD · Sw 86.6% · Density 2.74 · ROBERTSON -- --
30/23a- 3 ↳ Plug 45 2588.971 -- φ 14.2% · Kh 0.1 mD · Kv 0.0 mD · Sw 79.0% · Density 2.77 · ROBERTSON -- --
30/23a- 3 ↳ Plug 46 2589.276 -- φ 12.9% · Kh 0.1 mD · Density 2.77 · ROBERTSON -- --
30/23a- 3 ↳ Plug 47 2589.581 -- φ 13.9% · Kh 0.5 mD · Kv 0.0 mD · Density 2.71 · ROBERTSON -- --
30/23a- 3 ↳ Plug 48 2589.886 -- φ 11.0% · Kh 0.0 mD · Density 2.76 · ROBERTSON -- --
30/23a- 3 ↳ Plug 49 2590.19 -- φ 14.8% · Kh 0.1 mD · Kv 0.0 mD · Sw 77.6% · Density 2.80 · ROBERTSON -- --
30/23a- 3 ↳ Plug 50 2590.495 -- φ 15.8% · Kh 0.3 mD · Sw 84.3% · Density 2.80 · ROBERTSON -- --
30/23a- 3 ↳ Plug 51 2590.8 -- φ 15.6% · Kh 0.0 mD · Kv 0.0 mD · Sw 87.3% · Density 2.76 · ROBERTSON -- --
30/23a- 3 ↳ Plug 52 2591.105 -- φ 16.6% · Kh 0.1 mD · Kv 0.1 mD · Sw 75.6% · Density 2.72 · ROBERTSON -- --
30/23a- 3 ↳ Plug 53 2591.41 -- φ 14.3% · Kh 0.9 mD · Kv 0.0 mD · Sw 88.6% · Density 2.75 · ROBERTSON -- --
30/23a- 3 ↳ Plug 54 2591.714 -- φ 14.2% · Kh 0.1 mD · Kv 0.0 mD · Sw 71.1% · Density 2.72 · ROBERTSON -- --
30/23a- 3 ↳ Plug 55 2592.019 -- φ 14.2% · Kh 0.0 mD · Kv 0.1 mD · Sw 85.8% · Density 2.73 · ROBERTSON -- --
30/23a- 3 ↳ Plug 56 2592.324 -- φ 13.6% · Sw 80.9% · ROBERTSON -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
30/23a- 3 102.56520080566406 3121.9140625 12 0 2026-08-06 14:00:40.324218+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
30/23a- 3
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 164.8968 3120.3900000000003 19394
caliper CALI CGG Digital Well Logs 164.7444 3120.2376000000004 19394
caliper CAL CGG Digital Well Logs 164.2872 3105.15 12822
comp_sonic DT CGG Digital Well Logs 164.2872 3112.9224000000004 19141
deep_resistivity ILD CGG Digital Well Logs 165.0492 3120.9996 19397
density_correction DRHO CGG Digital Well Logs 164.592 3120.3900000000003 19396
gamma_ray GR CGG Digital Well Logs 102.5652 3111.5508 19745
gamma_ray GRD CGG Digital Well Logs 161.8488 3109.722 19344
gamma_ray CGR CGG Digital Well Logs 2554.3764 3109.8744 3646
med_resistivity ILM CGG Digital Well Logs 164.592 3121.914 19406
micro_resistivity MSFL CGG Digital Well Logs 2560.4724 3105.7596000000003 3579
neutron_por NPHI CGG Digital Well Logs 164.7444 3113.3796 19349
pef PEF CGG Digital Well Logs 164.4396 3119.3232000000003 19390
shallow_resistivity SFLU CGG Digital Well Logs 164.7444 408.8892 1603
sp SP CGG Digital Well Logs 164.4396 3118.1040000000003 5283
thorium THOR CGG Digital Well Logs 2554.224 3109.722 3646
uranium URAN CGG Digital Well Logs 2556.9672 3109.722 3627

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
30/23a- 3 24 3124.200 3095.195 D:\BigSpatial\nsta_raw\CGG_Deviation\30-23a-3 8117ag_CGG-Deviation.xlsx

Related Documents

Open Document Search
Searching related documents...