Successful wireline logging in difficult boreholes in Kuwait

Adverse well conditions have compromised logging operations in the “Jurassic” wells in Kuwait. In a single year, 48% of all logging operations involved NPT or were curtailed due to logging difficulties. Logging tools failed to reach TD on 10 occasions, there were 5 fishing operations and 4 jobs were cancelled due to logging difficulties. Typically the operator would only run essential logging services due to the risk. In the 18 month period following the introduction of Wireline Express the operator achieved a success rate of 95%. This also included 4 logging runs at 73° deviation – a local record. As a result the logging programs were expanded to XPT, CMR and LithoScanner. Fig.1. In deviated wells using Wireline Express, the CMR bowspring can be removed and ledges are easily navigated with the angled holefinder Increased conveyance reliability leads to the inclusion of XPT, CMR and LithoScanner and a 10x reduction in