ID: 661
OBJECTID: 661
wlbNpdidWellbore: 1395
wlbName: 25/1-7 R3
wlbHistory:

General

Well 25/1-7 was drilled on the main Frigg structure close to the UK border. The Frigg Field was discovered by well 25/1-1 in 1971. Production from the field started in 1977. A main objective of well 25/1-7 was to establish a reference monitoring station for the production of gas from the Frigg Field. The objective of the re-entry 25/1-7 R3 was to log the fluid contacts.

Operations and results

Appraisal well 25/1-7 R3 was re-entered with the semi-submersible installation West Vanguard on 15 April 1989.

The well was logged (2050 - 1910 m) through casing with a Thermal Neutron Decay (TDT) log to determine the fluid contacts. The log found the gas/liquid contact at 1920.2 m, a 5.2 m rise of the water level since May 1988.

The well was suspended on 16 April 1989 as a gas appraisal well.

Testing

No drill stem test was performed.

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