Abstract: A device and method for wellbore inspection comprising a downhole tool. The downhole tool may comprise a wireline, a sensor cartridge, and a plurality of centralizers. The method for detecting defects within a wellbore may comprise inserting a downhole tool into a wellbore, wherein the downhole tool comprises a wireline, a sensor cartridge, and a plurality of centralizers. The method also includes producing an acoustic signal with the plurality of centralizers and recording the acoustic signal with a sensor, wherein the sensor records the acoustic signal within an aperture.

Abstract: A method and system for inspecting concrete downhole. The method may comprise inserting an inspection device inside a tube. The inspection device may comprise a sensor array which may comprise a high frequency transmitter, a low frequency transmitter, and a mid frequency receiver. The inspection device may further comprise a micro controller unit, a telemetry module, and a centralizing module. The method may further comprise activating the low frequency transmitter, recording reflections of acoustic waves off a tubing or a casing, and creating a graph with an information handling system for analysis. An inspection device may comprise a sensor array which may comprise a high frequency transmitter and a mid frequency receiver. The inspection device may further comprise a sensor array housing, an information handling system, a memory module, and a differential amplifier.

Abstract: Methods for locating an acoustic source. A method may comprise measuring noise from the acoustic source from a downhole environment, which produces a measurement for processing, performing a dispersion analysis on the measurement, performing a space entropy equalization and normalization process on the measurement, performing a weighted integration on the measurement, performing a pattern recognition on the measurement, performing a weighted enhancement on the measurement, and producing a recognition factor from the measurement. A method may comprise measuring noise from the acoustic source from a downhole environment, which produces a measurement for processing, performing a dispersion analysis on the measurement, performing a time difference scan on the measurement, performing a propagation distance scan on the measurement, performing a weighted enhancement on the measurement, and producing a recognition factor from the measurement.

Abstract: Methods and a system for detecting through casing formation resistivity. A method may comprise inserting an inspection device inside a tube, activating the transmitter coil, recording signals with the receiver coil array, creating a transmitter matrix from an electromagnetic field produced from the transmitter coil, creating a receiver matrix from the recorded signals, and determining a through casing formation resistivity of a target from the transmitter matrix and the receiver matrix. A method may further comprise determining a casing thickness of a target from the transmitter matrix and the receiver matrix. An inspection device may comprise a sensor array comprising a transmitter coil array and a receiver coil array. The inspection device may further comprise a sensor array housing, wherein the sensor array is disposed within the sensor array housing, a memory module, and a differential amplifier.

Abstract: A method and system for locating a stuck pipe. The method for locating a stuck pipe may comprise inserting an inspection device into a wellbore, transmitting an electromagnetic field, inducing an eddy current within a tube to provide an induced eddy current, recording a voltage from the induced eddy current within the tube, and analyzing tube properties from the recorded voltage. A system for locating a stuck pipe may comprise a drilling rig, a tether, and a telemetry module, where the telemetry module may comprise an accelerometer. The system may comprise a centralizing module, where the centralizing module comprises at least three arms, and an inspection device, where the inspection device comprises a memory module, a transmitter and receiver controller, and a sensor array. The sensor array may comprises a receiver and a transmitter. The system may comprise an information handling system and a service device.

Abstract: A method of creating a synthetic aperture. The method may comprise identifying a static configuration, inputting the static configuration into a dynamic controller, configuring a transmitter with the dynamic controller, and configuring a receiver with the dynamic controller. The method may further comprise inputting operational variables and environmental variables into a dynamic configuration, inputting the dynamic configuration into the dynamic controller, and re-configuring the transmitter and the receiver with the dynamic controller.

Abstract: A system and method for inspecting a tube comprising a telemetry module, a centralizing module, an inspection device, a differential amplifier, a sensor array, and a service device. In embodiments, a tube inspection device may comprise a sensor array. The sensor array may further comprise a center receiver coil, a ferri-core, a peripheral receiver, and a transmitter coil. A method for inspection a tube may comprise inserting an inspection device into a tube, energizing a sensory array, inducing an eddy current within the tubing, and measuring voltage with a center receiver coil and a peripheral receiver of the sensor array.

Abstract: A device and method for wellbore inspection comprising a downhole tool. The downhole tool may comprise a wireline, a sensor cartridge, and a plurality of centralizers. The method for detecting defects within a wellbore may comprise inserting a downhole tool into a wellbore, wherein the downhole tool comprises a wireline, a sensor cartridge, and a plurality of centralizers. The method also includes producing an acoustic signal with the plurality of centralizers and recording the acoustic signal with a sensor, wherein the sensor records the acoustic signal within an aperture.

Abstract: An apparatus and methods for inspecting pipes which may comprise a body attached to a tether for movement in a pipe. The body may comprises at least a transmitter coil and a receiver coil. The receiver coil may be disposed between at least two transmitter coils. The apparatus may also include a circuit for energizing the transmitter coil with a pulsed electromagnetic source and a circuit for receiving and processing a signal from the receiver coil. Methods include inserting an inspection device into a pipe and energizing transmitter coils. A magnetic flux is emitted from the transmitter coils. The method also includes inducing an eddy current within a pipe wall and measuring the electromagnetic flux induced in a receiver coil by the eddy current within the pipe wall.