30/9-28 S

Exploration · Wildcat · P&A · Gas · Statoil Petroleum AS · Oseberg Sør · PL 104

30/9-28 S is a wildcat exploration wellbore in the North Sea, drilled by Statoil Petroleum AS, entered Jan 15, 2016, to 4,083 m in the Statfjord Gp.

Discovery 30/9-28 S · On the map →

4,083: m total depth · 3,928 m vertical
99: m water depth
Jan 15, 2016: entered · completed Feb 26, 2016
Statfjord Gp: at total depth · Early Jurassic
54.6: m of core in 1 core
143: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED FEB 26, 2018

On file for this wellbore

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

Drilling

Drilling facility: SONGA DELTA · Semisub steel
Drilling days: 43
Kelly bushing elevation: 29 m
Maximum inclination: 29.29999924°
Drilling permit: 1606-L
Licensing round: 9
Plugged and abandoned: —
Core samples available: Yes
Cuttings samples available: Yes
Position · ED50: 60.43127° N, 2.74438° E
Hydrocarbons in: Intra Draupne Fm Ss · Late Jurassic
Hydrocarbons in: Tarbert Fm · Middle Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

Wellbore history

General

Well 30/9-28 S was drilled about 5.5 kilometres west of the Oseberg South field in the North Sea. The primary exploration target was to prove petroleum in Early and Middle Jurassic reservoir rocks (the Tarbert Formation and upper part of the Statfjord Group). The secondary exploration target was to prove petroleum in Lower Jurassic reservoir rocks (lower part of the Statfjord group).

Operations and results

Wildcat well 30/9-28 S was spudded with the semi-submersible installation Songa Delta on 15 January 2016 and drilled to TD at 4083 m (3928 m TVD) in the Early Jurassic Eiriksson Formation. No significant problem was encountered in the operations. The well was drilled with seawater and hi-vis sweeps down to 1364 m and with XP-07 oil based mud from 1364 m to TD.

The well encountered gas in three different reservoirs. An Intra Draupne Formation sandstone at 2910.5 to 2913 m (2879 to 2881.1 m TVD) was gas filled with a gas-down-to contact. The Tarbert Formation was gas bearing from 2915.6 to a gas-water contact at 2930.0 m (2883.4 to 2896 m TVD). The Intra Draupne sandstone and the Tarbert Formation are not in pressure communication. The Statfjord Group, Nansen Formation, was gas bearing from 3645.1 to a gas-water contact at 3657.9 m (3523 to 3534.4 m TVD). The secondary exploration target in the lower part of the Statfjord group is water bearing. Oil shows were recorded only in the hydrocarbon-bearing reservoirs of the Statfjord Group. The use of oil based mud may have masked minor shows.

One core was cut was cut from 3654 to 3708.6 m with 100% recovery. The core dept

Around this wellbore

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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/7869, documented in the API reference.