CPET Corrosion Protection Evaluation Tool

The CPET corrosion protection evaluation tool provides critical information for cost-effective cathodic protection programs. CPET analysis features state-of-the-art accuracy and reliability. The resulting log describes how well the cathodic protection is performing and advises whether new wells need cathodic protection.

Accurate measurement of the casing potential requires good contact between the tool and the casing. To meet this requirement, the CPET tool has four sets of electrodes and performs in any wellbore fluid. This advanced design eliminates the expense of acid washing the casing and displacing the wellbore fluid with oil—steps that are usually necessary before other evaluation tools can be run, along with the rig downtime involved with these preparations. The CPET tool also saves rig time during the survey itself, with its fast thermal stabilization and hydraulic operation.

The real-time results are used to identify remedial adjustments to the cathodic protection program and to confirm the program’s effectiveness while the tool is in the wellbore.

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