31/7-2 A

Exploration · Appraisal · P&A · Oil/gas · Faroe Petroleum Norge AS · Bestla · PL 740

31/7-2 A is an appraisal exploration wellbore in the North Sea, drilled by Faroe Petroleum Norge AS, entered Jul 8, 2017, to 2,723 m in the Sognefjord Fm.

Discovery 31/7-1 Bestla · On the map →

2,723: m total depth · 2,299 m vertical
120: m water depth
Jul 8, 2017: entered · completed Jul 27, 2017
Sognefjord Fm: at total depth · Late Jurassic
81.6: m of core in 2 cores
—: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED JUL 27, 2019

On file for this wellbore

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

Drilling

Drilling facility: DEEPSEA BERGEN decom · Semisub steel
Drilling days: 20
Kelly bushing elevation: 23 m
Maximum inclination: 53.09000015°
Drilling permit: 1662-L
Licensing round: TFO2013
Plugged and abandoned: Jul 27, 2017
Core samples available: Yes
Cuttings samples available: Yes
Position · ED50: 60.40504° N, 3.03993° E
Hydrocarbons in: Sognefjord Fm · Late Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 31/7-2 A was drilled as a geological side-track to well bore 31/7-2 S to appraise the Brasse discovery on the Bjørgvin Arch in the North Sea. The primary objective was to identify lateral development of the Sognefjord Formation updip to the east of the primary well bore, and thereby confirm hydrocarbon presence, pressure gradients, and fluid contacts.

Operations and results

Appraisal well 31/7-2 A was kicked off from 31/7-2 S, below the 13 3/8” surface casing at 919 m on 8 July 2017 and drilled to TD at 2723 in the lower part of the Sognefjord Formation. Operations proceeded without significant problems. The well was drilled with Enviromul oil-based mud from kick-off to TD.

A gas column of approximately 6 m and an oil column of approximately 18 m were encountered in the Sognefjord Formation. It showed good reservoir properties, in line with the 31/7-2 S well. The properties of the oil and gas are the same as in the previous Brasse wells. The gas-oil contact was encountered at 2583 m (2177 m TVD) which is approximately 6m deeper than the gas-oil contact recorded in wells 31/7-1 and 31/7-1 A. The oil-water contact was encountered at approximately 2604 m (2195 m TVD), which is in accordance with the other wells. Pressure measurements showed communication with the primary well bore and wells 31/7-1 and 31/7-1 A. Weak oil shows (patchy direct fluorescence and slow blue-white blooming cut) were described below the OWC d

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.

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