Well Data Manager / Well Summary / 23/26a- 11

23/26a- 11

Decommissioned

Well Header

Well No
23/26a- 11
NSTA DEN No
3456
Well Name
--
Drill Seq No
11
Quadrant / Block
23 / 26 a
Surface Location
57.005117, 2.164767
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Licence No
P57
Licence Type
Production
Spud Date
1988-05-10
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

23/26a- 11 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
Q
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
84.00
TD MD (m)
1345.000
TD TVDSS (m)
1290.157
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1988-05-10
TD Reached
1988-05-25
Completion Date
1988-06-07
Release Date
1992-06-07

Formation Tops (4)

Wellbore Formation Era MD (m) TVDSS (m) Provider
23/26a- 11 Stronsay Cenozoic 1080.000 1053.961 Lloyds Register
Montrose Mesozoic 1091.000 1064.957 Lloyds Register
Cromer Knoll Mesozoic 1092.000 1065.957 Lloyds Register
Zechstein Palaeozoic 1093.000 1066.957 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
23/26a- 11 4 0 0 12 4 3 2 1 1 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
23/26a- 11 DST DST 1 -- 372.2 384.0 Label / Pliocene
23/26a- 11 Oil shows OS * 1092.05268 -- 12 m thick

Rock Samples (5)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
23/26a- 11 Cuttings 355.0 1344.99 -- -- .
23/26a- 11 Core #1 1076.98 1090.48 -- -- .
23/26a- 11 Core #2 1090.48 1101.88 φ 18.4% (n=2) · Kh 203.0 mD (n=2) · Density 2.90 (n=2) · ROBERTSON GROUP BRECCIA, MOD ARG, W.IND, OCC VUGS, CMN ANH CLS, SL DOLM, OCC PARTIALLY OPEN FRACS.; BRECCIA, MOD ARG, W.IND, OCC VUGS, PARTIALLY FRAC ANH CLS, SL DOLM. .
23/26a- 11 ↳ Plug 01 1099.95 -- φ 16.8% · Kh 102.0 mD · Density 2.90 · ROBERTSON GROUP BRECCIA, MOD ARG, W.IND, OCC VUGS, PARTIALLY FRAC ANH CLS, SL DOLM. --
23/26a- 11 ↳ Plug 02 1100.05 -- φ 20.0% · Kh 304.0 mD · Density 2.91 · ROBERTSON GROUP BRECCIA, MOD ARG, W.IND, OCC VUGS, CMN ANH CLS, SL DOLM, OCC PARTIALLY OPEN FRACS. --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
23/26a- 11 99.66960144042969 1341.1199951171875 9 0 2026-08-06 12:23:18.980617+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
23/26a- 11
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 345.4908 1340.9676 6533
caliper CAL CGG Digital Well Logs 345.0336 652.1196 2016
caliper CALI CGG Digital Well Logs 345.0336 1341.12 6537
comp_sonic DTLF CGG Digital Well Logs 345.4908 1329.0804 6341
deep_resistivity IDPH CGG Digital Well Logs 666.9024 1339.1388 4234
deep_resistivity ILD CGG Digital Well Logs 345.6432 1339.4436 6522
density_correction DRHO CGG Digital Well Logs 345.4908 1340.8152 6532
gamma_ray GR CGG Digital Well Logs 99.6696 1331.214 8082
gamma_ray CGR CGG Digital Well Logs 325.374 1329.9948 6593
gamma_ray SGR CGG Digital Well Logs 325.374 1329.8424 6592
med_resistivity ILM CGG Digital Well Logs 345.7956 1340.5104 6528
med_resistivity IMPH CGG Digital Well Logs 666.9024 1340.2056 4243
neutron_por NPHI CGG Digital Well Logs 345.3384 1333.9572 6488
pef PEF CGG Digital Well Logs 345.0336 1340.6628 6534
potassium POTA CGG Digital Well Logs 326.2884 1329.8424 6586
thorium THOR CGG Digital Well Logs 326.4408 1329.8424 6585
uranium URAN CGG Digital Well Logs 326.2884 1329.9948 6587

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
23/26a- 11 30 1345.000 1318.339 D:\BigSpatial\nsta_raw\CGG_Deviation\23-26a-11 6285by_CGG-Deviation.xlsx

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