Slimhole, high temperature acoustic borehole televiewer

QL43 ABI


The QL43 ABI is the latest generation of acoustic televiewer. Based on more than 10 years of experience and market leadership with BHTV technology, the new system consists of a completely redesigned acoustic head and new electronics in order to meet oil industry standards in terms of temperature and pressure ratings.

The electronic architecture uses a 14 Bit A/D converter directly coupled to a superfast 333 Mops digital signal processor (DSP). The DSP performs complex data processing operations in real time on each individual ultrasonic wave train. This allows a wider dynamic range of signal detection and easy field operation in a wide variety of logging applications.

The QL43-ABI tool is stackable within the Quick Link (QL) 43 mm product line or it can be run as a standalone tool.


Sensor

Fixed transducer and rotating focusing mirror
3 axis accelerometer (170°C)
APS544-3 axis magnetometer – 3 axis accelerometer (125°C)


Temperature – Pressure

Max temp: Open hole 125°C (257°F) / Cased hole 170°C (338°F)
700 bar (10160 PSI)


Diameter – Length

43 mm (1.6”) – 1.77 m (70”)


Weight

10 kgs


Features

Automatic or manual adaptation to variable borehole conditions.

Automatic optimization of the measurement window under all borehole conditions.

Improved dynamic range of signal detection.

Very high travel time resolution.

The implementation of different operating modes. For example, when run inside casing, the tool can record both the echo of the casing and that of the borehole wall. With multi‐echoes processing, application of the tool may be extended to casing thickness and corrosion evaluation. Tool upgrades and the implementation of customized operating modes can be done by simply downloading new firmware to the tool from the surface computer.

Higher logging speed when used in conjunction with the QL43-DDS (Downhole Data Storage)



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