Well Data Manager / Well Summary / 15/25a- 4

15/25a- 4

Decommissioned

Well Header

Well No
15/25a- 4
NSTA DEN No
4575
Well Name
--
Drill Seq No
4
Quadrant / Block
15 / 25 a
Surface Location
58.192597, 0.832495
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
CHRYSAOR PRODUCTION (U.K.) LIMITED
Original Operator
--
Sub Area Operator
CHRYSAOR PRODUCTION (U.K.) LIMITED
Licence No
P233
Licence Type
Production
Spud Date
1991-11-22
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/25a- 4 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Gas and Condensate Show
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
22.860
Ground Elev (m)
--
Water Depth (m)
156.36
TD MD (m)
3965.450
TD TVDSS (m)
3939.490
TD Datum Depth (m)
22.860
TD Datum Type
Kelly Bushing
Spud Date
1991-11-22
TD Reached
1992-02-14
Completion Date
1992-02-14
Release Date
1996-02-14

Formation Tops (21)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/25a- 4 Balder Cenozoic 2029.000 2005.921 Lloyds Register
Balder Tuff Cenozoic 2029.000 2005.921 Lloyds Register
Moray Mesozoic 2029.000 2005.921 Lloyds Register
Sele Mesozoic 2077.000 2053.893 Lloyds Register
Montrose Mesozoic 2161.000 2137.834 Lloyds Register
Lista Mesozoic 2161.000 2137.834 Lloyds Register
Balmoral Sandstone Cenozoic 2225.000 2201.789 Lloyds Register
Andrew Sandstone Cenozoic 2377.000 2353.664 Lloyds Register
Maureen Mesozoic 2676.000 2652.550 Lloyds Register
Maureen Sandstone Mesozoic 2676.000 2652.550 Lloyds Register
Maureen Reworked Unit Mesozoic 2713.000 2689.524 Lloyds Register
Ekofisk Mesozoic 2778.000 2754.475 Lloyds Register
Chalk Mesozoic 2778.000 2754.475 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2836.000 2812.433 Lloyds Register
Lower Cretaceous Undifferentiated Mesozoic 3551.000 3526.342 Lloyds Register
Cromer Knoll Mesozoic 3551.000 3526.342 Lloyds Register
Kimmeridge Clay 3837.000 3811.422 Lloyds Register
Humber Mesozoic 3837.000 3811.422 Lloyds Register
Piper Mesozoic 3883.000 3857.229 Lloyds Register
Heron Palaeozoic 3898.000 3872.167 Lloyds Register
Smith Bank Mesozoic 3898.000 3872.167 Lloyds Register

Lithology Intervals

15/25a- 4 Curve: SANDCOUNT 78 intervals  ·  MD 941.984 – 3897.630 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (73)
Limestone (5)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
15/25a- 4 6 10 5 21 21 2 2 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
15/25a- 4 Oil shows OS Piper Formation 3882.5424000000003 -- 16 m thick

Rock Samples (101)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/25a- 4 Cuttings 841.25 3965.45 -- -- .
15/25a- 4 Core #1 3884.98 3893.21 φ 9.1% (n=24) · Kh 11.1 mD (n=22) · Kv 1.0 mD (n=3) · Density 2.67 (n=24) · CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS; SILTSTONE - NO ANALYSIS | SST GRY F-CRSGR WL SIL CMT TR PYR; SST GRY F-MGR WL SIL CMT PYR; SST GRY F-MGR WL SIL CMT PYR FRAC; SST GRY FGR SIL CMT; SST GRY FGR SIL CMT PYR; SST GRY FGR SIL CMT TR PYR; SST GRY MGR SIL CMT PYR; SST GRY VF-FGR WL SIL CMT; SST GRY VF-FGR WL SIL CMT FRAC; SST GRY VF-FGR WL SIL CMT TR CARB --
15/25a- 4 ↳ Plug 01 3884.981 -- φ 8.1% · Kh 0.1 mD · Kv 0.5 mD · Density 2.66 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 02 3885.286 -- φ 9.5% · Kh 0.0 mD · Density 2.67 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Core Plug #1 3885.59 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Plug 03 3885.895 -- φ 7.7% · Kh 0.1 mD · Density 2.64 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT TR CARB --
15/25a- 4 ↳ Plug 04 3886.2 -- φ 13.4% · Kh 142.0 mD · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY FGR SIL CMT --
15/25a- 4 ↳ Plug 05 3886.505 -- φ 12.1% · Kh 71.6 mD · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY FGR SIL CMT --
15/25a- 4 ↳ Plug 06 3886.81 -- φ 6.8% · Kh 0.0 mD · Density 2.64 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 07 3887.114 -- φ 7.0% · Kh 0.1 mD · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 08 3887.419 -- φ 8.1% · Kh 4.8 mD · Density 2.64 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT FRAC --
15/25a- 4 ↳ Plug 09 3887.724 -- φ 8.4% · Kh 0.6 mD · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 10 3887.968 -- φ 7.3% · Kh 0.1 mD · Kv 0.1 mD · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 11 3888.334 -- φ 9.1% · Kh 0.3 mD · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 12 3888.638 -- φ 10.0% · Density 2.65 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT FRAC --
15/25a- 4 ↳ Plug 13 3888.943 -- φ 9.7% · Kh 0.1 mD · Density 2.68 · CORE LABORATORIES U. K. LTD. SST GRY F-CRSGR WL SIL CMT TR PYR --
15/25a- 4 ↳ Core Plug #1 3889.248 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Plug 14 3889.553 -- φ 6.8% · Kh 0.1 mD · Density 2.66 · CORE LABORATORIES U. K. LTD. SST GRY VF-FGR WL SIL CMT --
15/25a- 4 ↳ Plug 15 3889.858 -- φ 12.9% · Kh 1.5 mD · Density 2.73 · CORE LABORATORIES U. K. LTD. SST GRY FGR SIL CMT PYR --
15/25a- 4 ↳ Plug 16 3890.162 -- φ 12.5% · Kh 1.6 mD · Density 2.66 · CORE LABORATORIES U. K. LTD. SST GRY FGR SIL CMT TR PYR --
15/25a- 4 ↳ Plug 17 3890.467 -- φ 9.3% · Kh 2.6 mD · Density 2.66 · CORE LABORATORIES U. K. LTD. SST GRY FGR SIL CMT --
15/25a- 4 ↳ Plug 18 3890.772 -- φ 9.1% · Kh 7.7 mD · Density 2.66 · CORE LABORATORIES U. K. LTD. SST GRY FGR SIL CMT --
15/25a- 4 ↳ Plug 19 3891.077 -- φ 9.7% · Kh 8.6 mD · Kv 2.4 mD · Density 2.68 · CORE LABORATORIES U. K. LTD. SST GRY MGR SIL CMT PYR --
15/25a- 4 ↳ Plug 20 3891.382 -- φ 11.0% · Kh 0.4 mD · Density 2.67 · CORE LABORATORIES U. K. LTD. SST GRY F-MGR WL SIL CMT PYR --
15/25a- 4 ↳ Plug 21 3891.686 -- φ 7.7% · Kh 1.9 mD · Density 2.67 · CORE LABORATORIES U. K. LTD. SST GRY F-MGR WL SIL CMT PYR --
15/25a- 4 ↳ Plug 22 3891.991 -- φ 7.0% · Kh 0.0 mD · Density 2.84 · CORE LABORATORIES U. K. LTD. SST GRY F-MGR WL SIL CMT PYR --
15/25a- 4 ↳ Plug 23 3892.296 -- φ 10.9% · Kh 0.1 mD · Density 2.70 · CORE LABORATORIES U. K. LTD. SST GRY F-MGR WL SIL CMT PYR --
15/25a- 4 ↳ Plug 24 3892.601 -- φ 5.4% · Density 2.67 · CORE LABORATORIES U. K. LTD. SST GRY F-MGR WL SIL CMT PYR FRAC --
15/25a- 4 ↳ Core Plug #1 3892.906 -- CORE LABORATORIES U. K. LTD. SILTSTONE - NO ANALYSIS --
15/25a- 4 Core #2 3894.12 3916.07 CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS; SILTSTONE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3894.125 -- CORE LABORATORIES U. K. LTD. SILTSTONE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3894.43 -- CORE LABORATORIES U. K. LTD. SILTSTONE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3894.734 -- CORE LABORATORIES U. K. LTD. SILTSTONE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3895.039 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3895.344 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3895.649 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3895.954 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3896.258 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3896.563 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3896.868 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3897.173 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3897.478 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3897.782 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3898.087 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3898.392 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3898.697 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3899.002 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3899.306 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3899.611 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3899.916 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3900.221 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3900.526 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3900.83 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3901.135 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3901.44 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3901.745 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3902.05 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3902.354 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3902.659 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3902.964 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3903.269 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3903.574 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3903.878 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3904.183 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3904.488 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3904.793 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3905.098 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3905.402 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3905.707 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3906.012 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3906.317 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3906.622 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3906.926 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3907.231 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3907.536 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3907.841 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3908.146 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3908.45 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3908.755 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3909.06 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3909.365 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3909.67 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3909.974 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3910.279 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3910.584 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3910.889 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3911.194 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3911.498 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3911.803 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3912.108 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3912.413 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3912.718 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3913.022 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3913.327 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3913.632 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3913.937 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3914.242 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3914.546 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3914.851 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3915.156 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --
15/25a- 4 ↳ Core Plug #2 3915.461 -- CORE LABORATORIES U. K. LTD. SHALE - NO ANALYSIS --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/25a- 4 178.61279296875 3967.73388671875 8 0 2026-08-06 08:34:06.145402+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/25a- 4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 1972.056 3966.5148000000004 13088
cable_tension TENS OGA Batch Unzipped 1966.2648000000002 3967.7340000000004 13134
caliper CALI OGA Batch Unzipped 1971.4464 3965.2956000000004 13060
deep_resistivity RES_DEP OGA Batch Unzipped 3734.4096000000004 3966.5148000000004 1524
density_correction DENC OGA Batch Unzipped 1972.056 3966.5148000000004 13088
gamma_ray GR OGA Batch Unzipped 178.61280000000002 3964.3812000000003 24832
med_resistivity RES_MED OGA Batch Unzipped 3734.4096000000004 3967.7340000000004 1532
neutron_por NEU OGA Batch Unzipped 3711.2448000000004 3966.5148000000004 1676
pef PEF OGA Batch Unzipped 1985.01 3966.5148000000004 13003

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/25a- 4 119 4061.460 4034.838 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_25a- 4\WELL_PATH\WDD_QC\15_25a-_4_wdd_WDD_FILE_1676472_DATACO_MAPPED.csv

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