48/20a- 7

Decommissioned

Well Header

Well No
48/20a- 7
NSTA DEN No
5576
Well Name
--
Drill Seq No
7
Quadrant / Block
48 / 20 a
Surface Location
53.432745, 1.902674
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
SHELL U.K. LIMITED
Original Operator
--
Sub Area Operator
SHELL U.K. LIMITED
Licence No
P8
Licence Type
Production
Spud Date
1995-07-22
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (3)

48/20a- 7 Original
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas Well
Dev Type
Producer
Convention
--
Primary Target
L
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
36.576
Ground Elev (m)
--
Water Depth (m)
25.91
TD MD (m)
2870.302
TD TVDSS (m)
2601.163
TD Datum Depth (m)
36.576
TD Datum Type
Kelly Bushing
Spud Date
1995-07-22
TD Reached
1995-08-23
Completion Date
1995-09-06
Release Date
1999-09-06
48/20a- 7J Sidetrack J parent: 48/20a- 7
Abandoned Phase 3 Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
--
Dev Type
--
Convention
Conventional
Primary Target
--
Well Seq
--
Datum Type
Rotary Table
Datum Elev (m)
36.576
Ground Elev (m)
--
Water Depth (m)
25.91
TD MD (m)
2761.793
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1995-09-09
TD Reached
1995-09-11
Completion Date
1995-09-11
Release Date
1999-09-11
48/20a- 7Z Sidetrack Z parent: 48/20a- 7J
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas Well
Dev Type
--
Convention
--
Primary Target
L
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
36.576
Ground Elev (m)
--
Water Depth (m)
25.91
TD MD (m)
2852.623
TD TVDSS (m)
2602.992
TD Datum Depth (m)
36.576
TD Datum Type
Kelly Bushing
Spud Date
1995-09-11
TD Reached
1995-09-13
Completion Date
1995-09-18
Release Date
1999-09-18

Formation Tops (33)

Wellbore Formation Era MD (m) TVDSS (m) Provider
48/20a- 7 Chalk Mesozoic 62.000 25.424 BGS LithoStrat Upper
Lias Mesozoic 162.000 125.421 BGS LithoStrat Upper
Hydraulic Limestone Formation Mesozoic 784.000 747.275 BGS LithoStrat Upper
Winterton 798.000 761.268 BGS LithoStrat Upper
Keuper Halite Member Mesozoic 837.000 800.255 BGS LithoStrat Upper
Lower Keuper Member 993.000 955.761 BGS LithoStrat Upper
Upper Dowsing Member 1160.000 1116.699 BGS LithoStrat Upper
Muschelkalk Halite Member Mesozoic 1204.000 1156.737 BGS LithoStrat Upper
Middle Dowsing Member 1268.000 1212.883 BGS LithoStrat Upper
Main Rot Halite Member 1416.000 1341.952 BGS LithoStrat Upper
Rot Clay Member 1480.000 1397.481 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1489.000 1405.303 BGS LithoStrat Upper
Rogenstein Member Mesozoic 1791.000 1669.799 BGS LithoStrat Upper
Main Bunter Shale Member Mesozoic 1923.000 1789.689 BGS LithoStrat Upper
Brockelschiefer Member 2109.000 1952.507 BGS LithoStrat Upper
Aller Halite Palaeozoic 2139.000 1978.677 BGS LithoStrat Upper
Pegmatitanhydrit Palaeozoic 2213.000 2042.533 BGS LithoStrat Upper
Red Salt Clay Member 2214.000 2043.399 BGS LithoStrat Upper
Leine Halite Member Palaeozoic 2215.000 2044.271 BGS LithoStrat Upper
Hauptanhydrit Palaeozoic 2313.000 2131.569 BGS LithoStrat Upper
Plattendolomit Palaeozoic 2335.000 2151.425 BGS LithoStrat Upper
Grey Salt Clay Member 2406.000 2214.293 BGS LithoStrat Upper
Deckanhydrit 2407.000 2215.167 BGS LithoStrat Upper
Stassfurt Halite Palaeozoic 2407.000 2215.167 BGS LithoStrat Upper
Basalanhydrit Palaeozoic 2529.000 2318.286 BGS LithoStrat Upper
Hauptdolomit Palaeozoic 2531.000 2319.926 BGS LithoStrat Upper
Werraanhydrit Palaeozoic 2550.000 2335.435 BGS LithoStrat Upper
Zechsteinkalk Palaeozoic 2584.000 2362.647 BGS LithoStrat Upper
Kupferschiefer Palaeozoic 2590.000 2367.432 BGS LithoStrat Upper
Leman Sandstone 2591.000 2368.230 BGS LithoStrat Upper
Coal Measures 2841.000 2575.846 BGS LithoStrat Upper
48/20a- 7Z Leman Sandstone 2631.000 2400.412 BGS LithoStrat Upper
Coal Measures 2823.000 2574.908 BGS LithoStrat Upper

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
48/20a- 7 6 7 0 31 31 1 1 0 1 View
48/20a- 7J 0 0 0 0 0 0 0 0 0
48/20a- 7Z 2 2 0 2 2 1 0 0 0 View

Hydrocarbon Occurrence (3)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
48/20a- 7 DST DST 1 -- 2589.3 2761.5 Label / Rotliegend
48/20a- 7 Gas GW Leman Sandstone Formation 2591.1657600000003 -- 250 m thick
48/20a- 7Z Gas shows GS Leman Sandstone Formation 2630.7288000000003 -- 192 m thick

Rock Samples (51)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
48/20a- 7 Core #1 2620.06 2644.34 φ 9.9% (n=50) · Kh 0.8 mD (n=40) · Kv 0.1 mD (n=9) · Density 2.67 (n=50) · G.A.P.S GEOLOGICAL CONSULTANTS LTD. NO PERM. POSSIBLE, IRREGULAR SHAPED PLUG --
48/20a- 7 ↳ Plug 01 2620.091 -- φ 11.7% · Kh 1.2 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 1V 2620.137 -- φ 12.5% · Kv 0.2 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 02 2620.655 -- φ 13.2% · Kh 0.4 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 03 2621.28 -- φ 11.3% · Kh 0.5 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 04 2621.89 -- φ 9.1% · Kh 0.3 mD · Density 2.68 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 05 2622.484 -- φ 3.9% · Kh 0.0 mD · Density 2.68 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 06 2623.109 -- φ 4.3% · Kh 0.0 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 6V 2623.139 -- φ 6.1% · Kv 0.0 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 07 2623.718 -- φ 7.4% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 08 2624.328 -- φ 6.5% · Kh 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 09 2624.938 -- φ 5.5% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 10 2625.547 -- φ 5.5% · Kh 0.0 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 11 2626.172 -- φ 5.5% · Kh 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 11V 2626.203 -- φ 6.0% · Kv 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 12 2626.66 -- φ 6.4% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 13 2627.376 -- φ 5.7% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 14 2627.986 -- φ 6.4% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 15 2628.595 -- φ 6.2% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 16 2629.205 -- φ 5.9% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 16V 2629.235 -- φ 6.1% · Kv 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 17 2629.799 -- φ 5.8% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 18 2630.424 -- φ 7.0% · Kh 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 19 2631.034 -- φ 11.5% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 20 2631.643 -- φ 10.8% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 21 2632.253 -- φ 10.0% · Kh 0.2 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 21V 2632.299 -- φ 11.5% · Kv 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 22 2632.862 -- φ 11.1% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 23 2633.472 -- φ 10.1% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 24 2634.082 -- φ 11.2% · Kh 0.2 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 25 2634.691 -- φ 10.9% · Kh 0.1 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 26 2635.301 -- φ 11.0% · Kh 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 26V 2635.362 -- φ 11.9% · Kv 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 27 2635.91 -- φ 14.1% · Kh 0.4 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 28 2636.52 -- φ 14.2% · Kh 0.3 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 29 2637.13 -- φ 14.1% · Kh 4.2 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 30 2637.739 -- φ 13.2% · Kh 2.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 31 2638.547 -- φ 12.5% · Kh 5.9 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 31V 2638.593 -- φ 12.6% · Kv 0.1 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 32 2638.958 -- φ 11.5% · Kh 0.2 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 33 2639.583 -- φ 14.5% · Kh 0.6 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 34 2640.193 -- φ 11.2% · Kh 0.4 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 35 2640.787 -- φ 13.9% · Kh 0.3 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 36 2641.397 -- φ 12.6% · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. NO PERM. POSSIBLE, IRREGULAR SHAPED PLUG --
48/20a- 7 ↳ Plug 36V 2641.427 -- φ 7.8% · Kv 0.0 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 37 2642.006 -- φ 13.1% · Kh 3.0 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 38 2642.616 -- φ 11.6% · Kh 1.7 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 39 2643.226 -- φ 13.6% · Kh 3.2 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 40 2643.835 -- φ 11.8% · Kh 1.9 mD · Density 2.67 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 41 2644.14 -- φ 12.1% · Kh 2.5 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --
48/20a- 7 ↳ Plug 41V 2644.231 -- φ 14.0% · Kv 0.3 mD · Density 2.66 · G.A.P.S GEOLOGICAL CONSULTANTS LTD. -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
48/20a- 7 62.78879928588867 2738.4755859375 10 0 2026-08-06 14:24:22.953248+00 View Log
48/20a- 7Z 2490.82568359375 2845.61279296875 9 0 2026-08-06 14:24:27.25036+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
48/20a- 7
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 143.256 2738.4756 8206
caliper CALI CGG Digital Well Logs 143.256 2567.7876 7197
comp_sonic DT CGG Digital Well Logs 143.256 2725.674 16456
comp_sonic DTCO CGG Digital Well Logs 785.1648 2198.0652 8842
deep_resistivity LLG CGG Digital Well Logs 2585.1612 2721.4068 895
deep_resistivity LLD CGG Digital Well Logs 2585.1612 2721.4068 895
density_correction DRHO CGG Digital Well Logs 143.256 2738.4756 8206
gamma_ray GR CGG Digital Well Logs 62.7888 2728.722 17494
neutron_por NPHI CGG Digital Well Logs 2584.704 2734.818 986
pef PEF CGG Digital Well Logs 143.256 2567.7876 7197
shallow_resistivity LLS CGG Digital Well Logs 2585.1612 2721.4068 895
shear_sonic DTSM CGG Digital Well Logs 785.1648 2198.0652 9266
sp SP CGG Digital Well Logs 2584.704 2711.196 831
48/20a- 7Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 2585.3136 2845.6128000000003 1709
caliper CALI CGG Digital Well Logs 2585.3136 2843.6316 1696
comp_sonic DT CGG Digital Well Logs 2584.704 2845.6128000000003 1713
deep_resistivity LLD CGG Digital Well Logs 2587.4472 2843.3268000000003 1680
deep_resistivity ILD CGG Digital Well Logs 2586.5328 2845.6128000000003 1701
deep_resistivity LLG CGG Digital Well Logs 2587.4472 2843.3268000000003 1680
density_correction DRHO CGG Digital Well Logs 2585.3136 2845.6128000000003 1709
gamma_ray GRD CGG Digital Well Logs 2559.1008 2841.8028 1856
gamma_ray GR CGG Digital Well Logs 2490.8256 2834.6400000000003 2257
gamma_ray GRI CGG Digital Well Logs 2576.1696 2844.8508 1764
neutron_por NPHI CGG Digital Well Logs 2585.7708000000002 2845.6128000000003 1706
shallow_resistivity LLS CGG Digital Well Logs 2587.4472 2843.3268000000003 1680
sp SP CGG Digital Well Logs 2584.704 2833.2684 1632

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
48/20a- 7 88 2870.302 2601.211 D:\BigSpatial\nsta_raw\CGG_Deviation\48-20a-7 23077ab-CGG-deviation.xls
48/20a- 7J 0 -- -- --
48/20a- 7Z 93 2852.623 2603.184 D:\BigSpatial\nsta_raw\CGG_Deviation\48-20a-7Z 60684j-CGG-deviation.xls

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