30/8-1 SR

Exploration · Wildcat · P&A · Gas/condensate · Norsk Hydro Produksjon AS · Tune · PL 190

30/8-1 SR is a wildcat exploration wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Nov 14, 1995, to 5,149 m in the Statfjord Gp.

Discovery 30/8-1 SR · On the map →

5,149: m total depth · 4,764.4 m vertical
96: m water depth
Nov 14, 1995: entered · completed Mar 1, 1996
Statfjord Gp: at total depth · Early Jurassic
—: m of core
160: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED MAR 1, 1998

On file for this wellbore

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

Drilling

Drilling facility: TREASURE SAGA · Semisub steel
Drilling days: 109
Kelly bushing elevation: 26 m
Maximum inclination: 43.09999847°
Drilling permit: 797-L2
Licensing round: 14
Plugged and abandoned: Dec 1, 2003
Core samples available: No
Cuttings samples available: No
Position · ED50: 60.46304° N, 2.63515° E
Hydrocarbons in: Statfjord Gp · Early Jurassic
Hydrocarbons in: Tarbert Fm · Middle Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 30/8-1 SR is a re-entry of well 30/8-1 S in the Viking Graben of the North Sea, just west of the Oseberg Fields.The objective of the original 30/8-1 S well was to test the hydrocarbon potential of the Jurassic Brent Group and Statfjord Formation with the additional commitment to drill into the Hegre Group or to a maximum depth of 5026 m TVD. Well 30/8-1 S discovered gas/condensate in the Tarbert Formation of the Brent Group, but was suspended on 1 March 1995 due to environmental regulations. The re-entry 30/8-1 SR should complete the programme for 30/8-1 S.

Operations and results

Well 30/8-1 SR was re-entered and spudded with the semi-submersible installation on 14 November 1995 and drilled to TD at 5149 m (4767 m TVD) in the Statfjord Formation. Drilling activities took 9 days more than budget, due mainly to a wear-hole in the casing and fishing for lost logging tools. A core was attempted at core point 5145 m in the Statfjord Formation. After coring to 5149 m the core the BHA was pulled, but both core and barrel was lost in hole. Fishing was unsuccessful and 5149 m became final TD. The well was drilled water based with ANCO 2000 mud from 4668 m to 4710 m and with Ancoterm High Temperature mud from 4710 m to TD.

The Statfjord Formation was the only new formation penetrated by the re-entry. Based on logs and one core gas was identified in the Statfjord Formation down to 4859.0 m (4497 m TVD) (gas-down-to contact). Based on MDT-pressure data, the initial reservoir pressure was interpreted to be 778 Bar at 4696.6 m (4356 m TVD). In the Statfjord Formation a total of 98.0 m (true stratigraphical thickness) net gas pay was interpreted with an average log calculated porosity of

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.

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