Abstract: A wellbore leakage detection tool and method for assembling such tool includes a longitudinal tool element, including a through bore perpendicular to a longitudinal axis of the longitudinal tool element, an acoustic insulator or damper arranged in the through bore, and an acoustic sensor assembly arranged suspended in the acoustic insulator or damper inside the through bore. The acoustic insulator or damper has an acoustic impedance different from an acoustic impedance of the tool element.

Abstract: A wellbore leakage detection tool and method for assembling such tool includes a longitudinal tool element, including a through bore perpendicular to a longitudinal axis of the longitudinal tool element, an acoustic insulator or damper arranged in the through bore, and an acoustic sensor assembly arranged suspended in the acoustic insulator or damper inside the through bore. The acoustic insulator or damper has an acoustic impedance different from an acoustic impedance of the tool element.

Abstract: The invention is a petroleum well downhole logging tool (0) comprising —a wireline telemetry controller unit (6) comprising —a downhole modem (61) for transmitting data at a first bitrate uplink on a wireline (8) to a surface telemetry unit (106) connected to a surface read-out unit (SRO) with a memory (123)), a server toolbus controller (62) connected between said downhole modem (61) and an internal tool databus (7) operating at a second bitrate (r2) higher than the first bitrate; —one or more logging tools (4) each with sensors (40a, 40b, 40c, . . .

Abstract: A pulse-wave ultrasound production well tubing wireline logging method using a logging tool communicating via a wireline to a surface read-out unit, said logging tool provided with a frustoconical ring-shaped linear ultrasound transducer array comprising ultrasound transducer elements, the tool arranged for switching between a PW echo backscatter imaging processing mode and a Doppler measurement processing mode, for transmitting, generating a number of digital signals, and beam-forming said signals to represent ultrasound beams, converting said digital signals to voltage signals, connecting the voltage drive signal channels to oppositely directed consecutive series of said transducer elements, and transmitting wave pulses as said two opposite ultrasound beams (A) and (B) to the fluid in the tubing; and for receiving, receiving returning signals and converting to analogue voltage signals, amplifying the voltage signals, converting them to digital signals and beamforming them, and combining the digital signals

Abstract: The invention is a petroleum well downhole logging tool (0) comprising—a wireline telemetry controller unit (6) comprising—a downhole modem (61) for transmitting data at a first bitrate uplink on a wireline (8) to a surface telemetry unit (106) connected to a surface read-out unit (SRO) with a memory (123)), a server toolbus controller (62) connected between said downhole modem (61) and an internal tool databus (7) operating at a second bitrate (r2) higher than the first bitrate;—one or more logging tools (4) each with sensors (40a, 40b, 40c, . . .