ID: 513
OBJECTID: 513
wlbNpdidWellbore: 523
wlbName: 34/10-25
wlbHistory:

General

Appraisal well 34/10-25 was drilled to test possible shallow gas accumulation in sandstones at the location for the Gullfaks B platform. The targets were several sand layers of Pliocene age. Gas had been indicated on seismic anomalies and logs from other wells in the same field.

Operations and results

Well 34/10 was spudded with the semi-submersible installation Deepsea Bergen on 6 August 1985 and drilled to TD at 600 m in Pliocene sediments in the Nordland Group. No significant problem was encountered in the operations. The well was drilled with water based mud.

Top Pliocene was encountered at 302 m. No indication of shallow gas was observed in the well. The well penetrated one sand layer only, from 518.9 to 522 m. The sand was water bearing. Biostratigraphical investigations proved only fauna of Pleistocene and Pliocene age.

No cores were cut and no wire line fluid samples were taken. A full set of conventional logs where run. Maximum bottom hole temperature on wire line, measured 4 hours after circulation was 29.4 deg C. Cuttings samples were taken every 5 m from 230 m to TD.

The well was permanently abandoned on 17 August 1985.

Testing

No drill stem test was performed.

wlbHistoryDateUpdated: 2016-07-06T00:00:00