Holefinder success saves millions for operator in Azerbaijan

An operator in Azerbaijan had been unable to complete wireline logging on multiple wells due to toolstring holdup on ledges at shale-sand interfaces. Consequently the operator had been forced to acquire sub-surface data with LWD after drilling. Each post-drilling LWD pass took 6 days at a cost of $4.0MM per well. This method was used in place of wireline logging on 80% of the wells drilled. Eager to reduce costs, the operator engaged Petromac to provide a holefinder system in order to navigate over ledges, washouts and borehole breakout. The operator achieved a 100% success rate on the remaining well campaign, logging 5 wells with multiple toolstrings and avoiding the costly LWD passes. Fig.2. Petromac supply a range of holefinders for a wide variety of tool connections Fig.1. Petromac Guide “skiing” over a ledge Holefinder system saves $4.0MM per well in Azerbaijan