23/26a- 10

Decommissioned

Well Header

Well No
23/26a- 10
NSTA DEN No
3293
Well Name
--
Drill Seq No
10
Quadrant / Block
23 / 26 a
Surface Location
57.072521, 2.071773
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
BP EXPLORATION OPERATING COMPANY LIMITED
Original Operator
--
Sub Area Operator
BP EXPLORATION OPERATING COMPANY LIMITED
Licence No
P57
Licence Type
Production
Spud Date
1987-11-29
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (3)

23/26a- 10 Original parent: 23/26a- 10J
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
L
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
87.00
TD MD (m)
1877.500
TD TVDSS (m)
1851.500
TD Datum Depth (m)
26.000
TD Datum Type
Rotary Table
Spud Date
1987-11-29
TD Reached
1987-12-26
Completion Date
1988-01-11
Release Date
1992-01-11
23/26a- 10J Sidetrack J
Abandoned Phase 3 Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
--
Dev Type
--
Convention
--
Primary Target
--
Well Seq
--
Datum Type
Rotary Table
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
87.00
TD MD (m)
614.000
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1987-11-22
TD Reached
1987-11-25
Completion Date
1987-11-29
Release Date
1991-11-29
23/26a- 10Z Sidetrack Z parent: 23/26a- 10
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
L
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
87.00
TD MD (m)
3050.000
TD TVDSS (m)
3004.430
TD Datum Depth (m)
26.000
TD Datum Type
Rotary Table
Spud Date
1988-01-19
TD Reached
1988-02-16
Completion Date
1988-03-31
Release Date
1992-03-31

Formation Tops (29)

Wellbore Formation Era MD (m) TVDSS (m) Provider
23/26a- 10 Balder Cenozoic 1712.000 1686.000 Lloyds Register
Moray Mesozoic 1712.000 1686.000 Lloyds Register
Balder Tuff Cenozoic 1716.000 1690.000 Lloyds Register
Sele Mesozoic 1724.000 1698.000 Lloyds Register
Chalk Mesozoic 1734.000 1708.000 Lloyds Register
Upper Cretaceous Chalk Mesozoic 1734.000 1708.000 Lloyds Register
Lower Cretaceous Undifferentiated Mesozoic 1773.000 1747.000 Lloyds Register
Cromer Knoll Mesozoic 1773.000 1747.000 Lloyds Register
Kimmeridge Clay 1774.000 1748.000 Lloyds Register
Humber Mesozoic 1774.000 1748.000 Lloyds Register
Shearwater Salt 1778.000 1752.000 Lloyds Register
Zechstein Palaeozoic 1778.000 1752.000 Lloyds Register
23/26a- 10Z Unknown 113.000 87.000 BGS LithoStrat Upper
Nordland Cenozoic 1010.000 984.000 BGS LithoStrat Upper
Nordland Cenozoic 1750.000 1724.000 BGS LithoStrat Upper
Unknown 1819.000 1793.000 BGS LithoStrat Upper
Rogaland 1826.000 1800.000 BGS LithoStrat Upper
Montrose Mesozoic 1834.000 1808.000 BGS LithoStrat Upper
Ekofisk Mesozoic 1868.000 1842.000 BGS LithoStrat Upper
Tor Mesozoic 1877.000 1851.000 BGS LithoStrat Upper
Hod Mesozoic 1897.000 1871.000 BGS LithoStrat Upper
Rodby Mesozoic 1937.000 1911.000 BGS LithoStrat Upper
Valhall Mesozoic 1938.000 1912.000 BGS LithoStrat Upper
Kimmeridge Clay 1953.000 1927.000 BGS LithoStrat Upper
Unknown 1956.000 1930.000 BGS LithoStrat Upper
Zechstein Palaeozoic 1987.000 1961.000 BGS LithoStrat Upper
Chalk Mesozoic 1992.000 1966.000 BGS LithoStrat Upper
Unknown 1997.000 1971.000 BGS LithoStrat Upper
Zechstein Palaeozoic 2027.000 2001.000 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
23/26a- 10 5 6 1 17 12 4 11 1 2 View
23/26a- 10J 0 0 0 0 0 0 0 0 0
23/26a- 10Z 0 0 0 17 17 3 7 1 4 View

Hydrocarbon Occurrence (16)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
23/26a- 10 Oil shows OS Montrose Group 1734.0 -- 11 m thick
23/26a- 10 DST DST 1B -- 1734.9 1775.2 Label / Upper Cretaceous
23/26a- 10 Oil shows OS Tor Formation 1744.9999999999998 -- 24 m thick
23/26a- 10 DST DST 1A -- 1745.0 1775.2 Not used for labelling, multiple DSTs in same play / Upper Cretaceous
23/26a- 10 Other shows HI Hod Formation [Norwegian Classification - reserved for possible future use] 1768.5 -- 4 m thick
23/26a- 10Z DST DST 2 -- 1855.9 1936.1 Label / Forties
23/26a- 10Z DST DST 2 -- 1855.9 1936.1 Not used for labelling, multiple DSTs in same play / Upper Cretaceous
23/26a- 10Z Other shows HI Tor Formation 1877.0 -- 20 m thick
23/26a- 10Z Oil shows OS Hod Formation [Norwegian Classification - reserved for possible future use] 1897.0 -- 40 m thick
23/26a- 10Z DST DST 1 -- 1907.1 1936.1 Not used for labelling, multiple DSTs in same play / Upper Cretaceous
23/26a- 10Z DST DST 1A -- 1908.0 1936.1 Label / Upper Cretaceous
23/26a- 10Z Other shows HI Rødby Formation 1937.0 -- 1 m thick
23/26a- 10Z Other shows HI VALH 1937.9 -- 15 m thick
23/26a- 10Z Other shows HI Kimmeridge Clay Formation 1952.6 -- 3 m thick
23/26a- 10Z Other shows HI * 1955.5 -- 31 m thick
23/26a- 10Z Other shows HI Chalk Group 1991.9999999999998 -- 5 m thick

Rock Samples (44)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
23/26a- 10 Cuttings 590.0 1876.99 -- -- .
23/26a- 10 Core #1 1734.98 1743.85 -- -- preserved samples taken .
23/26a- 10 Core #2 1744.49 1748.97 -- -- .
23/26a- 10 Core #3 1751.99 1755.98 -- -- .
23/26a- 10 Core #4 1756.99 1762.96 -- -- .
23/26a- 10 Core #5 1762.96 1767.38 -- -- .
23/26a- 10 Core #6 1768.97 1778.39 -- -- .
23/26a- 10 Core #7 1778.57 1788.17 -- -- .
23/26a- 10 Core #8 1788.26 1797.77 -- -- .
23/26a- 10 Core #9 1797.86 1816.82 -- -- .
23/26a- 10 Core #10 1816.82 1829.65 -- -- .
23/26a- 10 Core #11 1832.98 1845.66 -- -- .
23/26a- 10Z Cuttings 1019.98 3049.95 -- -- .
23/26a- 10Z Core #1 1900.98 1907.62 φ 12.9% (n=6) · Kh 0.0 mD (n=6) · Density 2.71 (n=6) · ROBERTSON -- preserved samples taken .
23/26a- 10Z ↳ Plug 1 1902.14 -- φ 6.9% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 2 1903.0 -- φ 13.7% · Kh 0.2 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 3 1903.94 -- φ 11.9% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 4 1905.02 -- φ 14.8% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 5 1906.29 -- φ 14.5% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 6 1906.98 -- φ 15.6% · Kh 0.0 mD · Density 2.72 · ROBERTSON -- --
23/26a- 10Z Core #2 1910.49 1916.77 φ 10.3% (n=5) · Kh 0.3 mD (n=5) · Density 2.72 (n=5) · ROBERTSON -- .
23/26a- 10Z ↳ Plug 7 1910.96 -- φ 13.6% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 8 1912.19 -- φ 4.4% · Kh 0.1 mD · Density 2.72 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 9 1912.84 -- φ 7.8% · Kh 0.3 mD · Density 2.72 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 10 1915.05 -- φ 14.2% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 11 1916.51 -- φ 11.6% · Kh 0.8 mD · Density 2.72 · ROBERTSON -- --
23/26a- 10Z Core #3 1917.47 1922.98 φ 17.1% (n=4) · Kh 0.2 mD (n=3) · Density 2.71 (n=4) · ROBERTSON -- .
23/26a- 10Z ↳ Plug 12 1917.71 -- φ 13.2% · Kh 0.5 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 13 1919.22 -- φ 21.8% · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 14 1920.42 -- φ 12.9% · Kh 0.0 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 15 1921.22 -- φ 20.3% · Kh 0.0 mD · Density 2.72 · ROBERTSON -- --
23/26a- 10Z Core #4 1924.48 1934.96 φ 16.3% (n=9) · Kh 0.3 mD (n=3) · Density 2.73 (n=9) · ROBERTSON -- .
23/26a- 10Z ↳ Plug 16 1924.59 -- φ 16.5% · Kh 0.4 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 17 1925.53 -- φ 18.0% · Kh 0.4 mD · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 18 1926.03 -- φ 20.6% · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 19 1926.99 -- φ 12.3% · Kh 0.2 mD · Density 2.72 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 20 1930.06 -- φ 14.9% · Density 2.74 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 21 1931.31 -- φ 13.0% · Density 2.71 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 22 1932.31 -- φ 17.3% · Density 2.70 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 23 1933.2 -- φ 16.6% · Density 2.73 · ROBERTSON -- --
23/26a- 10Z ↳ Plug 24 1934.25 -- φ 17.2% · Density 2.81 · ROBERTSON -- --
23/26a- 10Z Core #5 1934.96 1949.17 -- -- .
23/26a- 10Z Core #6 1949.99 1959.38 -- -- .
23/26a- 10Z Core #7 1959.99 1972.64 -- -- .

Wireline Log Inventory (Ingested Curves)

No wireline log curves ingested for this well.

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

No scanned LAS source files matched to this well.

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
23/26a- 10 0 -- -- --
23/26a- 10J 0 -- -- --
23/26a- 10Z 0 -- -- --

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