7220/11-4 A

Exploration · Appraisal · P&A · Oil/gas · Lundin Norway AS · PL 609

7220/11-4 A is an appraisal exploration wellbore in the Barents Sea, drilled by Lundin Norway AS, entered Jul 18, 2017, to 2,392 m in the Falk Fm.

Discovery 7220/11-1 (Alta) · On the map →

2,392: m total depth · 2,052 m vertical
401.7: m water depth
Jul 18, 2017: entered · completed Aug 28, 2017
Falk Fm: at total depth · Carboniferous
51.7: m of core in 5 cores
—: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED AUG 28, 2019

On file for this wellbore

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

Drilling

Drilling facility: LEIV EIRIKSSON · Semisub steel
Drilling days: 42
Kelly bushing elevation: 25 m
Maximum inclination: 48.5°
Drilling permit: 1665-L
Licensing round: 21
Plugged and abandoned: Aug 28, 2017
Core samples available: Yes
Cuttings samples available: Yes
Position · ED50: 72.04108° N, 20.55221° E
Hydrocarbons in: Ørn Fm · Early Permian
Hydrocarbons in: Undefined Gp · Early Triassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 7220/11-4 A is a geologic side-track to wellbore 7220/11-4 on the Alta discovery on the southern Loppa High in the Barents Sea. The primary objective was to investigate the northwards extent and hydrocarbon potential of the Ørn Formation and Permo-Triassic conglomerate encountered the main wellbore.

Operations and results

Appraisal well 7220/11-4 A was kicked off from 676 m in the main well bore on 18 July 2017. It was drilled with the semi-submersible installation Leiv Eiriksson to TD at 2392 m (2052 m TVD) m in the Carboniferous Falk Formation. Operations proceeded without significant problems. The well was drilled with Performadril mud with 2.8 - 3.6% glycol from kick-off to TD.

Top reservoir was found at 2227 m (1897.3 m TVD). It consisted of Late Permian to Early Triassic conglomerates and carbonate rocks in the Ørn formation. The reservoir quality through the oil column varied, several zones were found to have very good permeability. In common with other wells drilled on the Alta structure, the well encountered oil with a gas cap in the reservoir. Pressure data showed the same hydrocarbon contacts as observed in previous wells drilled on the discovery suggesting good communication over the Alta structure. The gas-oil contact is estimated to be at 2234.7 m (1904.6 m TVD). The free-water level is estimated at 2282.2 m (1949.4 m TVD). Minor oil shows were reported at intervals throughout the Snadd Formation, pr

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/8226, documented in the API reference.