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ASHDOWN 2 · Record details

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NSTA — England onshore wellbore top holes · LS/26- 6

Name / source ID
LS/26- 6
Borehole / source record ID
LS/26- 6
Sector
Oil and gas
Derived purpose group
Appraisal
Operator in source snapshot
Not reported / not verified
Recorded spud date
1955-07-11
Recorded completion date
1955-11-10
Basin in source
Not reported / not verified
Area in source
Landward
Latitude / longitude (WGS84)
51.0426539 / 0.1535702
Status reported by source
Decomissioned
Source-reported measurements
1740.1 m MD · Rotary Table
Source snapshot date
Not reported / not verified
Source accessed
2026-10-02
Original coordinate reference system
EPSG:4326 WGS84 service geometry; source TOPHOLEDTM attributes vary
Source record updated
Not reported / not verified
Purpose / source classification
Appraisal
Operator code
Not reported / not verified
Position accuracy
Not reported / not verified
Status effective date in source
Not reported / not verified
Well authorization date
Not reported / not verified
Drilling facility reported by source
Not reported / not verified
Total depth reached date
1955-11-09
Source completion status
Abandoned Phase 3
Source wellbore status
EXTANT
Source well-origin status
Decommissioned
Flow class
Gas and Oil Well
Source fluid types
Gas, Oil
Licence number
A57

Company roles reported by source

Source-reported measurements

TDMDDEPM
1740.103197355 m · Rotary Table
TDTVDSSM
1561.7951976261 m · subsea
WELL INTELLIGENCE / OPEN-DATA ANALYSIS

Record-level intelligence

These tools are descriptive: not forecasts, reserve estimates or investment advice. Source coverage is partial; unknown does not mean zero.

Offset wells

Nearest atlas records to the reported surface location, by great-circle distance. Records from different catalogues are not treated as the same physical well.

Drilling density · within 5 km
4
Drilling density · within 10 km
6
Drilling density · within 25 km
39
Drilling density · within 50 km
104
Bearing and distance diagram of nearby records; north is up. 5 km10 km15 km N 1 ASHDOWN 1 · 1.51 km12 ASHDOWN G1 (CROWBOROUGH WARREN) · 2.20 km23 ASHDOWN G4 (POUNDFIELD) · 2.81 km34 ROTHERFIELD 1 · 3.09 km45 ASHDOWN G2 (THORNHILL) · 6.52 km56 ASHDOWN G3 (WYCH CROSS) · 9.33 km67 HEATHFIELD 2, 8 HEATHFIELD 5, 9 HEATHFIELD 3, 10 HEATHFIELD 4, 11 HEATHFIELD 7 · 10.5 km7–1112 HEATHFIELD 6 · 11.1 km12
Exploration / appraisalDevelopment / production / injectionOther or unclassifiedNumbers match the table. Records that coincide at this scale share one marker labelled with their table numbers; a thin line joins any moved marker to its true point.

All records: NSTA — England onshore wellbore top holes.

#NameDistanceBearingRecorded spud dateMeasured depth (m)
1ASHDOWN 11.51 km319°1954-06-031,383
2ASHDOWN G1 (CROWBOROUGH WARREN)2.20 km304°1954-01-1351
3ASHDOWN G4 (POUNDFIELD)2.81 km64°1954-01-2146
4ROTHERFIELD 13.09 km167°1986-03-271,447
5ASHDOWN G2 (THORNHILL)6.52 km294°1954-01-1546
6ASHDOWN G3 (WYCH CROSS)9.33 km287°1954-01-17116
7HEATHFIELD 210.5 km140°1902-01-01115
8HEATHFIELD 510.5 km138°1902-06-30Unreported
9HEATHFIELD 310.5 km140°1902-02-28Unreported
10HEATHFIELD 410.6 km139°1902-04-30Unreported
11HEATHFIELD 710.8 km138°1955-10-16276
12HEATHFIELD 611.1 km142°1902-08-31Unreported

Open the nearby analysis for this location →

Thermal context

Nearest measured heat-flow sites (IHFC) and the source-reported bottom-hole temperature. Heat flow was not measured in this well; it is regional context.

Measurement sites within 100 km
7
Median within 100 km
54.0 mW/m²
Measurement siteDistanceHeat flow (mW/m²)Quality codePublication
Hankham
R24-P004731
26.7 km29.7Ux.M4x.---P---Benfield_1939
Hankham
R24-P021833
35.5 km46.9Ux.M4x.xx-P-xxBloomer_etal._1979
Godley Brid
R24-P069829
55.6 km54.0Ux.Mx.-------Wheildon_etal._1985
Humbly Grov
R24-P069832
79.8 km51.0Ux.Mx.-------Wheildon_etal._1985
FairCross
R24-P060102
87.8 km59.0Ux.Mx.-------Richardson_Oxburgh_1978

Quality codes are verbatim: U1–U4 uncertainty class (U1 best, Ux not computable), M1–M4 methodological class (x suffix: incomplete metadata); trailing letters are perturbation flags.

Global Heat Flow Data Assessment Group et al. (2024): The Global Heat Flow Database: Release 2024. V. 2026.03. GFZ Data Services. https://doi.org/10.5880/fidgeo.2024.014 Licensed under CC BY 4.0. Wellficent shows parent-level site values and selected metadata; values are not modified.

Subsurface temperature and heat flow →

Opening the map connects to OpenStreetMap. Pins use WGS84 coordinates; accuracy varies by source. Zoom into clusters, then select a pin. Coincident records open a filtered list.

Partial source coverage. Status and company roles are reported by each source, not independently verified as current. Unknown does not mean zero.

Mapped from source purpose; not current activity or a prediction.

Public administrative records are normalized with stable source identifiers. Original operators, drilling contractors and reported owners remain separate roles. Dates describe source access or reported events; they do not establish live activity. Coordinates are transformed to WGS84 where needed. Confidential records and personal owner fields are excluded. See each source for coverage, attribution and reuse terms.

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Source terms and attribution ↗

Contains information provided by the North Sea Transition Authority and/or other third parties.

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