An Innovative Downhole Surveillance Tool Featuring Advanced Wireless Acoustic Data Transmission Capabilities

Abstract The expectation for well barriers lasting for eternity and the need to reduce the cost on post-abandonment monitoring are a function of the abandonment method employed. As it currently stands, there exists a comprehensive set of guidelines and procedures that are intended to provide for permanent plug and abandon of wells, however we are proposing to Verify and Validate the barrier by recording changes on temperature and pressure below the cement plug and to transmit them above the cement plug without interfering with the cement integrity. This downhole wireless data well monitoring system is a world class global barrier verification system, with the development of a state-of-the-art downhole acoustic monitoring tool that with its wireless data broadcasting capabilities will expand the well abandonment monitoring Solutions in the temporary and permanent plug and barrier Verification & Validation market, including data transmission of downhole pressure and temperature broadcasted via a wireless acoustic telemetry from below the barrier, this demonstrates the technology development commitment to continue improving and managing the placement of reliable well barriers. This Acoustic Data Acquisition platform is a downhole wireless data well monitoring system, that operates with a transmitter acoustic tool below the cement barrier acquiring Pressure/Temperature readings or any other measurements and transmitting via acoustic pulses the information through the casing metal to a receiver above the cement plug on memory mode or to a repeaters every 1,2Km that will boost the signal to a surface receiver in case real-time data is needed. This platform is the only technology doing the verification of the effectiveness of the plug downhole by processing different parameters in the signal to deliver a quality output, used to verify the plug quality.