Negative Operational LL with Faroe

Brasse (31/7-3 A) – Reservoir section

What happened:

Performed cut and thread operation to free stuck wireline cable and fish wireline toolstring 1A. Used Schlumberger overshot. Had problems runnings past PBR at 796 m (hole vertical). Worked string up and down several times and reduced cable tension to 2000 lbf before RIH. Running speed up to 6 stands per hour.

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What was planned:

Wireline cut and thread

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What was learned:

Using liner instead of casing can cause problems when non-standard operations are necessary due to operations problems.

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What actions are required:

Evaluate in planning process.