GROOTEGAST-102 · Record details
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TNO / NLOG — Netherlands boreholes · GGT-102
- Name / source ID
- 1332
- Borehole / source record ID
- GGT-102
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- Nederlandse Aardolie Maatschappij B.V.
- Recorded spud date
- 1976-03-30
- Recorded completion date
- 1976-05-23
- Basin in source
- Grootegast
- Area in source
- On-shore
- Latitude / longitude (WGS84)
- 53.2432469 / 6.2453231
- Status reported by source
- Plugged and abandoned
- Source-reported measurements
- 3244.01 m MD · Rotary Table
- Source snapshot date
- Not reported / not verified
- Source accessed
- 2026-10-02
- Original coordinate reference system
- EPSG:23031 (ED50 / UTM zone 31N)
- Source record updated
- Not reported / not verified
- Purpose / source classification
- Appraisal hydrocarbon
- 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
- T-19
Company roles reported by source
- Original operatorNederlandse Aardolie Maatschappij B.V.
- Reported ownerNederlandse Aardolie Maatschappij B.V.
- Drilling contractorKCA Deutag
Source-reported measurements
- END_DEPTH_MAH
- 3244.01 m · Rotary Table
- END_DEPTH_MTVD
- 3024.26 m · Rotary Table
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
- 13
- Drilling density · within 10 km
- 64
- Drilling density · within 25 km
- 259
- Drilling density · within 50 km
- 919
All records: TNO / NLOG — Netherlands boreholes.
| # | Name | Distance | Bearing | Recorded spud date | Measured depth (m) |
|---|---|---|---|---|---|
| 1 | GROOTEGAST-102-SIDETRACK1 Same reported surface location | 0 m | — | 1998-06-16 | 3,486 |
| 2 | GROOTEGAST-102-SIDETRACK2 Same reported surface location | 0 m | — | 1998-07-22 | 3,305 |
| 3 | GROOTEGAST-102-SIDETRACK3 Same reported surface location | 0 m | — | 1998-07-25 | 3,470 |
| 4 | GROOTEGAST-102-SIDETRACK4 Same reported surface location | 0 m | — | 1998-08-12 | 3,470 |
| 5 | GROOTEGAST-101 | 10 m | 346° | 1976-01-11 | 2,367 |
| 6 | GROOTEGAST-101-SIDETRACK1 | 10 m | 346° | 1976-02-14 | 2,428 |
| 7 | GROOTEGAST-101-SIDETRACK2 | 10 m | 346° | 1976-02-29 | 3,102 |
| 8 | GROOTEGAST-103 | 39 m | 63° | 2002-10-06 | 3,240 |
| 9 | GROOTEGAST-01 | 1.45 km | 268° | 1960-10-29 | 3,022 |
| 10 | SEBALDEBUREN-02 | 3.38 km | 130° | 2003-01-03 | 3,234 |
| 11 | SEBALDEBUREN-01 | 3.41 km | 131° | 1989-11-15 | 3,173 |
| 12 | KOLLUMERLAND-01 | 4.11 km | 318° | 1981-01-18 | 3,467 |
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
- 227
- Median within 100 km
- 78.0 mW/m²
| Measurement site | Distance | Heat flow (mW/m²) | Quality code | Publication |
|---|---|---|---|---|
| 158 R24-P059055 | 1.37 km | 92.0 | Ux.M4.------- | Ramaekers_1991 |
| 142 R24-P059039 | 4.11 km | 92.0 | Ux.M4.------- | Ramaekers_1991 |
| 218 R24-P059115 | 9.15 km | 82.0 | Ux.M4.------r | Ramaekers_1991 |
| 201 R24-P059098 | 12.1 km | 83.0 | Ux.M4.------r | Ramaekers_1991 |
| 182 R24-P059079 | 12.5 km | 84.0 | Ux.M4.------r | Ramaekers_1991 |
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.
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 ↗
Source: NLOG / TNO Geological Survey of the Netherlands. Administrative data normalized by Wellficent.