Ann: Mukuyu-2 fluid sampling progress update, page-827

"But I'm wondering just how long we have before the well starts to deteriorate? "

If a hole is going to undergo mechanical deterioration it usually starts happening within the first 24 hours. This was apparent on M1 where they managed to get first wireline runs off and then had issues with subsequent runs.

I've worked numerous wireline jobs where we've had logging tools in the hole for a week without any wiper trips. 90% of the jobs where there were significant hole issues had indications of same very early in the logging job.