Q01-10
Partial source coverage. Status and company roles are reported by each source, not independently verified as current. Unknown does not mean zero.
- Name / source ID
- 7461
- Borehole / source record ID
- Q01-HELDER-B-01
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- Union Oil Company of the Netherlands
- Recorded spud date
- 1980-09-07
- Recorded completion date
- 1980-10-06
- Latitude / longitude (WGS84)
- 52.928352 / 4.074923
- Source-reported measurements
- 1659 m MD · Rotary Table
- Status reported by source
- Plugged and abandoned
- Source accessed
- 2026-10-02
- Source snapshot date
- Not reported / not verified
- Original coordinate reference system
- EPSG:23031 (ED50 / UTM zone 31N)
- Drilling facility reported by source
- Transocean II
Company roles reported by source
- Original operatorUnion Oil Company of the Netherlands
- Reported ownerUnocal Netherlands B.V.
- Drilling contractorTransocean Drilling Ltd.
| Source-reported measurements | Value | Reference |
|---|---|---|
| END_DEPTH_MAH | 1,659.00 m | Rotary Table |
| END_DEPTH_MTVD | 1,658.86 m | Rotary Table |
TNO / NLOG — Netherlands boreholes ↗
Source accessed:
Reuse terms: review-source-terms
Source terms and attribution ↗Source: NLOG / TNO Geological Survey of the Netherlands. Administrative data normalized by Wellficent.
Nearby wells and heat flow
These tools are descriptive: not forecasts, reserve estimates or investment advice. Source coverage is partial; unknown does not mean zero.
| Name | Distance | Source-reported measurements | Source catalogues |
|---|---|---|---|
| Q01-HELDER-B-01-SIDETRACK1 | 0.00 km | 1,763 m | TNO / NLOG — Netherlands boreholes |
| Q01-04 | 0.93 km | 1,901 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-17 | 1.71 km | 1,164 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-17-SIDETRACK1 | 1.71 km | 1,420 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-17-SIDETRACK2 | 1.71 km | 2,010 m | TNO / NLOG — Netherlands boreholes |
| Q01-07 | 1.71 km | 1,878 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-02 | 1.71 km | 1,598 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-02-SIDETRACK1 | 1.71 km | 1,733 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-03 | 1.71 km | 1,546 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-03-SIDETRACK1 | 1.71 km | 1,773 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-04 | 1.71 km | 1,775 m | TNO / NLOG — Netherlands boreholes |
| Q01-HELDER-A-04-SIDETRACK1 | 1.71 km | 1,724 m | TNO / NLOG — Netherlands boreholes |
Subsurface temperature and heat flow
Compare bottom-hole temperatures with depth and see measured heat flow near wells: context for geothermal reuse.
| Name | Distance | Subsurface temperature and heat flow | Quality flags |
|---|---|---|---|
| R24-P059175 | 11.50 km | 71.00 mW/m2 | {"qualityScores":["Ux.M4.-------"]} |
| R24-P059183 | 16.78 km | 74.00 mW/m2 | {"qualityScores":["Ux.M4.-------"]} |
| R24-P059151 | 18.08 km | 66.00 mW/m2 | {"qualityScores":["Ux.M4.-------"]} |
| R24-P059202 | 22.52 km | 93.00 mW/m2 | {"qualityScores":["Ux.M4.-------"]} |
| R24-P059216 | 26.99 km | 94.00 mW/m2 | {"qualityScores":["Ux.M4.-------"]} |
IHFC · Global Heat Flow Database, Release 2024 (v. 2026.03) ↗
Source accessed:
Reuse terms: CC-BY-4.0
Source terms and attribution ↗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.