CAST-CBL successfully deployed to 82° deviation in Norway

An operator in Norway wanted to log CAST-CBL to the maximum deviation possible, on an upcoming campaign of 4 highly deviated extended reach wells. Traditional methods of centralizing the CAST-CBL using slip-over centralizers causes excessive drag. This makes it challenging to descend past 50° deviation, which was not deep enough in the well for this operator. The slip-over centralizers were replaced by Tool Taxis, and the toolstring was able to descend to a maximum of 82° deviation, which was sufficient to acquire the required data. Equally as important, the eccentralization, was constantly below 0.1” in the deviated section of the borehole, which coupled with the smooth movement of the tool, resulted in excellent data. Tool Taxis successfully convey a CAST-CBL to 82° deviation in 9-5/8” casing Fig.1. CAST-CBL with Petromac Wireline Express installed on the toolstring Fig.2. EC centralization observed during the job