Well Data Manager / Well Summary / 21/25- 1

21/25- 1

Decommissioned

Well Header

Well No
21/25- 1
NSTA DEN No
1379
Well Name
--
Drill Seq No
1
Quadrant / Block
21 / 25
Surface Location
57.193565, 0.994139
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
ADURA ENERGY LIMITED
Original Operator
--
Sub Area Operator
ADURA ENERGY LIMITED
Licence No
P13
Licence Type
Production
Spud Date
1979-07-17
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/25- 1 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Gas and Oil Well
Dev Type
--
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
95.10
TD MD (m)
2320.138
TD TVDSS (m)
0.000
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1979-07-17
TD Reached
1979-08-13
Completion Date
1979-09-12
Release Date
1983-09-12

Formation Tops (15)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/25- 1 Horda Cenozoic 1826.000 1799.947 Lloyds Register
Stronsay Cenozoic 1826.000 1799.947 Lloyds Register
Lower Tay Sandstone 1929.000 1902.851 Lloyds Register
Balder Cenozoic 1967.000 1940.768 Lloyds Register
Moray Mesozoic 1967.000 1940.768 Lloyds Register
Balder Sandstone 1975.000 1948.749 Lloyds Register
Dornoch Mesozoic 1996.000 1969.689 Lloyds Register
Sele Mesozoic 2015.000 1988.625 Lloyds Register
Forties Sandstone Mesozoic 2029.000 2002.559 Lloyds Register
Montrose Mesozoic 2145.000 2117.731 Lloyds Register
Lista Mesozoic 2145.000 2117.731 Lloyds Register
Maureen Mesozoic 2187.000 2159.349 Lloyds Register
Chalk Mesozoic 2244.000 2215.686 Lloyds Register
Ekofisk Mesozoic 2244.000 2215.686 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2316.000 2286.670 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
21/25- 1 4 8 3 35 15 2 7 1 3 View

Hydrocarbon Occurrence (6)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/25- 1 Gas G EZ1S 1929.0792000000001 -- 67 m thick
21/25- 1 DST DST 3 -- 1939.7 1952.5 Label / Frigg
21/25- 1 Gas G EZ1S 1995.8304 -- 16 m thick
21/25- 1 DST DST 2 -- 1998.9 2031.8 Label / Forties
21/25- 1 Mixed OG Forties Sandstone Member 2028.7488 -- 116 m thick
21/25- 1 DST DST 1 -- 2066.5 2073.9 Not used for labelling, multiple DSTs in same play / Forties

Rock Samples (81)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/25- 1 Cuttings 463.3 2343.91 -- -- .
21/25- 1 Core #1 2037.89 2047.04 φ 25.2% (n=10) · Kh 357.4 mD (n=10) · Density 2.67 (n=10) · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT; SS GY FG SIL CMT CARD MIC; SS GY FG SIL CMT MIC; SS GY FG SIL CMT TR MIC; SS GY VFG SIL CMT MIC .
21/25- 1 ↳ Plug 01 2038.289 -- φ 26.6% · Kh 666.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT --
21/25- 1 ↳ Plug 02 2039.508 -- φ 27.2% · Kh 229.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT --
21/25- 1 ↳ Plug 03 2040.118 -- φ 28.6% · Kh 284.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT --
21/25- 1 ↳ Plug 04 2040.941 -- φ 27.6% · Kh 263.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT --
21/25- 1 ↳ Plug 05 2041.886 -- φ 20.4% · Kh 521.0 mD · Density 2.70 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT MIC --
21/25- 1 ↳ Plug 06 2043.227 -- φ 28.4% · Kh 571.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT CARD MIC --
21/25- 1 ↳ Plug 07 2043.989 -- φ 23.2% · Kh 4.6 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT MIC --
21/25- 1 ↳ Plug 08 2044.69 -- φ 17.6% · Kh 1.1 mD · Density 2.69 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT MIC --
21/25- 1 ↳ Plug 09 2045.848 -- φ 25.8% · Kh 346.0 mD · Density 2.70 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT TR MIC --
21/25- 1 ↳ Plug 10 2046.671 -- φ 26.7% · Kh 688.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT TR MIC --
21/25- 1 Core #2 2047.04 2049.44 φ 21.3% (n=3) · Kh 474.1 mD (n=3) · Density 2.66 (n=3) · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT; SS GY FG SIL CMT TR FE; SS GY MG SIL CMT TR PY .
21/25- 1 ↳ Plug 11 2047.707 -- φ 28.3% · Kh 1418.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY MG SIL CMT TR PY --
21/25- 1 ↳ Plug 12 2047.86 -- φ 17.8% · Kh 2.9 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 13 2049.17 -- φ 17.9% · Kh 1.4 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT TR FE --
21/25- 1 Core #3 2058.62 2066.85 φ 25.6% (n=8) · Kh 329.2 mD (n=8) · Density 2.67 (n=8) · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC; SS GY MG SIL CMT; SS GY VFG SIL CMT MIC .
21/25- 1 ↳ Plug 14 2059.534 -- φ 24.2% · Kh 342.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 15 2060.448 -- φ 22.4% · Kh 329.0 mD · Density 2.69 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 16 2061.362 -- φ 26.7% · Kh 398.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 17 2062.277 -- φ 27.5% · Kh 343.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 18 2063.191 -- φ 25.2% · Kh 385.0 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 19 2064.106 -- φ 26.2% · Kh 446.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 20 2065.02 -- φ 27.2% · Kh 377.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY MG SIL CMT --
21/25- 1 ↳ Plug 21 2065.934 -- φ 25.2% · Kh 14.0 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT MIC --
21/25- 1 Core #4 2068.07 2083.28 φ 27.1% (n=14) · Kh 216.7 mD (n=14) · Density 2.67 (n=14) · CORE LABORATORIES U.K. LTD DISINTEGRATED PLUG | SS GY F-MG SIL CMT; SS GY F-MG SIL CMT MIC; SS GY FG SIL CMT; SS GY VFG SIL CMT MIC; SS GY VFG SIL CMT MIC PY .
21/25- 1 ↳ Plug 23 2068.982 -- CORE LABORATORIES U.K. LTD DISINTEGRATED PLUG --
21/25- 1 ↳ Plug 24 2069.897 -- φ 29.0% · Kh 1117.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT --
21/25- 1 ↳ Plug 25 2071.634 -- φ 30.9% · Kh 56.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT --
21/25- 1 ↳ Plug 26 2072.03 -- φ 18.1% · Kh 1.4 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT MIC --
21/25- 1 ↳ Plug 27 2072.64 -- φ 28.4% · Kh 332.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 28 2073.402 -- φ 28.8% · Kh 464.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 29 2074.987 -- φ 26.4% · Kh 63.0 mD · Density 2.72 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT MIC PY --
21/25- 1 ↳ Plug 30 2075.139 -- φ 27.1% · Kh 204.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 31 2076.054 -- φ 25.6% · Kh 93.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 32 2076.968 -- φ 27.0% · Kh 118.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 33 2078.34 -- φ 28.6% · Kh 53.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 34 2079.041 -- φ 23.8% · Kh 44.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 35 2079.711 -- φ 30.0% · Kh 344.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 36 2080.656 -- φ 26.4% · Kh 31.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 37 2083.186 -- φ 29.3% · Kh 114.0 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 Core #5 2086.36 2103.73 φ 27.3% (n=16) · Kh 576.7 mD (n=14) · Density 2.67 (n=16) · CORE LABORATORIES U.K. LTD DISINTEGRATED PLUG | SS GY F-MG SIL CMT MIC; SS GY F-MG SIL CMT MIC TR CARB; SS GY FG SIL CMT CARB; SS GY FG SIL CMT CLAY; SS GY VF-FG SIL CMT MIC; SS GY VFG SIL CMT MIC .
21/25- 1 ↳ Plug 39 2087.27 -- φ 27.5% · Kh 468.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 40 2088.185 -- φ 29.0% · Kh 557.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 41 2089.099 -- φ 27.4% · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 42 2090.014 -- φ 29.2% · Kh 698.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 43 2090.928 -- φ 29.4% · Kh 873.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC --
21/25- 1 ↳ Plug 44 2091.842 -- φ 28.7% · Kh 606.0 mD · Density 2.64 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 45 2092.757 -- φ 33.4% · Kh 353.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 46 2093.671 -- φ 25.2% · Kh 585.0 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 47 2094.586 -- φ 27.1% · Kh 596.0 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 48 2095.5 -- φ 27.7% · Kh 700.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 49 2096.414 -- φ 27.7% · Kh 504.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 50 2097.329 -- φ 31.1% · Kh 1932.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY F-MG SIL CMT MIC TR CARB --
21/25- 1 ↳ Plug 51 2098.243 -- φ 22.2% · Kh 5.0 mD · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT MIC --
21/25- 1 ↳ Plug 52 2099.158 -- φ 18.5% · Density 2.68 · CORE LABORATORIES U.K. LTD SS GY VF-FG SIL CMT MIC --
21/25- 1 ↳ Plug 53 2100.072 -- φ 25.5% · Kh 116.0 mD · Density 2.61 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT CARB --
21/25- 1 ↳ Plug 54 2100.986 -- φ 27.7% · Kh 81.0 mD · Density 2.72 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT CLAY --
21/25- 1 ↳ Plug 55 2103.425 -- CORE LABORATORIES U.K. LTD DISINTEGRATED PLUG --
21/25- 1 Core #6 2104.64 2123.54 φ 27.3% (n=19) · Kh 284.3 mD (n=17) · Density 2.65 (n=19) · CORE LABORATORIES U.K. LTD DISINTEGRATED PLUG | SS GY FG SIL CMT; SS GY FG SIL CMT CARB; SS GY VFG SIL CMT .
21/25- 1 ↳ Plug 56 2104.644 -- φ 32.9% · Density 2.64 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT CARB --
21/25- 1 ↳ Plug 57 2105.558 -- CORE LABORATORIES U.K. LTD DISINTEGRATED PLUG --
21/25- 1 ↳ Plug 58 2106.473 -- φ 28.6% · Kh 294.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 59 2107.387 -- φ 26.1% · Kh 333.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 60 2108.302 -- φ 29.4% · Kh 1081.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 61 2109.216 -- φ 29.3% · Density 2.64 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 62 2110.13 -- φ 27.8% · Kh 160.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 63 2111.045 -- φ 26.8% · Kh 68.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 64 2111.959 -- φ 26.3% · Kh 291.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 65 2112.874 -- φ 28.4% · Kh 183.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 66 2113.849 -- φ 28.7% · Kh 352.0 mD · Density 2.67 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 67 2114.702 -- φ 19.1% · Kh 1.1 mD · Density 2.63 · CORE LABORATORIES U.K. LTD SS GY VFG SIL CMT --
21/25- 1 ↳ Plug 68 2115.678 -- φ 30.0% · Kh 672.0 mD · Density 2.63 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 69 2116.531 -- φ 28.1% · Kh 105.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 70 2117.446 -- φ 28.7% · Kh 180.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 71 2118.421 -- φ 28.0% · Kh 448.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 72 2119.305 -- φ 29.9% · Kh 636.0 mD · Density 2.65 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 73 2120.189 -- φ 22.9% · Kh 7.9 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 74 2121.103 -- φ 24.9% · Kh 19.0 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 ↳ Plug 75 2122.018 -- φ 22.7% · Kh 2.7 mD · Density 2.66 · CORE LABORATORIES U.K. LTD SS GY FG SIL CMT --
21/25- 1 Core #7 2123.54 2124.15 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/25- 1 121.00559997558594 2344.826416015625 10 0 2026-08-06 10:22:23.820957+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/25- 1
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 998.9820000000001 2344.3692 8829
caliper CALI CGG Digital Well Logs 999.1344 2344.2168 8827
caliper CALS CGG Digital Well Logs 1859.2800000000002 2342.2356 3170
comp_sonic DT CGG Digital Well Logs 211.6836 2335.53 10168
deep_resistivity ILD CGG Digital Well Logs 200.7108 2344.674 10436
deep_resistivity LLD CGG Digital Well Logs 1859.2800000000002 2340.7116 3160
density_correction DRHO CGG Digital Well Logs 999.2868000000001 2344.5216 8828
gamma_ray GR CGG Digital Well Logs 121.0056 2337.8160000000003 10920
gamma_ray GRL CGG Digital Well Logs 1859.1276 2335.0728 3124
gamma_ray GRD CGG Digital Well Logs 995.7816 2337.8160000000003 8807
micro_resistivity MSFL CGG Digital Well Logs 1859.2800000000002 2343.9120000000003 3181
neutron_por NPHI CGG Digital Well Logs 999.1344 2340.2544000000003 8801
shallow_resistivity SFL CGG Digital Well Logs 200.5584 2344.5216 10435
shallow_resistivity LLS CGG Digital Well Logs 1859.2800000000002 2341.0164 3162
sp SP CGG Digital Well Logs 201.6252 2344.8264 10425

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/25- 1 75 2346.046 2316.248 D:\BigSpatial\nsta_raw\CGG_Deviation\21-25-1 1068bz-CGG-deviation.xls

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