6407/1-7 A

Exploration · Appraisal · P&A · Gas/condensate · Wintershall Norge AS · PL 475

6407/1-7 A is an appraisal exploration wellbore in the Norwegian Sea, drilled by Wintershall Norge AS, entered Mar 22, 2014, to 3,602 m in the Lange Fm.

Discovery 6407/1-7 (Solberg) · On the map →

3,602: m total depth · 3,342 m vertical
281: m water depth
Mar 22, 2014: entered · completed Apr 20, 2014
Lange Fm: at total depth · Early Cretaceous
18.4: m of core in 1 core
—: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED APR 20, 2016

On file for this wellbore

What the Directorate holds from this wellbore. Each opens the section that lists it.

Drilling

Drilling facility: BORGLAND DOLPHIN · Semisub steel
Drilling days: 29
Kelly bushing elevation: 31 m
Maximum inclination: 52°
Drilling permit: 1516-L
Licensing round: TFO2007
Plugged and abandoned: —
Core samples available: Yes
Cuttings samples available: Yes
Position · ED50: 64.96241° N, 7.23508° E
Hydrocarbons in: No Formal Name · Late Cretaceous

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 6407/1-7 A is a geological sidetrack to the 6407/1-7 Solberg well in the southern part of the Grinda Graben in the Norwegian Sea. The 6407/1-7 well bores were drilled to test the continuation of the 6407/1-6 S Rodrigues Lange discovery. The primary well 6407/1-7 proved gas condensate in intra-Lange Formation sandstone. The objective of sidetrack 6407/1-7 A is to investigate the continuation of these sandstones to a position where the seismic amplitude anomaly is weaker.

Operations and results

Wildcat well 6407/1-7 A was kicked off from 6407/1-7 at 2519 m on 22 March 2014. It was drilled with the semi-submersible installation Borgland Dolphin to TD at 3602 m (3342 m TVD) in the Early Cretaceous Lange Formation. Drilling to TD and logging proceeded without significant problems but during plugging back for P&A BOP problems and WOW caused some NPT. The well was drilled with Carbosea oil based mud from kick-off to TD.

6407/1-7 A was drilled 500 m west of the main bore and penetrated an intra-Lange Formation sandstone between 3442.5 to 3459.5 (3235.6 to 3246.8 m TVD). The net thickness of the reservoir is 8 m with a porosity of 15.1% and a water saturation of 19.4%. The permeability varies from poor to excellent, with a range from below one mD to several hundred mD. The fluid in 6407/1-7 and -7 A is similar to what was found in the 6407/1-6 S. However, the pressure data shows that there is a 3.2 bar difference between Lange Formation sandstones in 6407/1-6 S and 6407/1-7/6407/1-7 A. No oil shows above the OBM was described in 6407/1-7 A.

One core was cut from 3443 to 3462 m with 97% recovery. No fluid sample was taken.

The

Around this wellbore

This wellbore on Sodir FactPages → · Press release →

About this data

Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Depths are metres along the wellbore from the kelly bushing unless a row gives its own unit; older cores are filed in feet. A zero the Directorate files for an unmeasured pressure, density, or temperature is shown as a dash.

Developers: this page as JSON is GET /v1/data/norway/wells/7436, documented in the API reference.