Magnetic Wireline Steering

Published: November 29, 2019 | Last updated: July 5, 2023

What Does Magnetic Wireline Steering Mean?

Magnetic wireline steering is the most accurate and reliable wireline steering method used in horizontal directional drilling (HDD). It is accurate, reliable and the use of a coil facilitates its steering capability.

It reads the azimuth and inclination of the borehole with the help of a magnetic guidance system. A wireline operator operates the tool and keeps the drill bit drilling in the right direction while tracking the tool face magnitude and orientation (TFMO).


Trenchlesspedia Explains Magnetic Wireline Steering

Magnetic steering tools have become a standard for guidance during drilling operations. It uses the surface tracking system to verify the exact location of the tool below the surface. In many cases, the tool can be successfully steered without a surface coil but the coil makes the tool very accurate.

Since accuracy is the top priority in most installation projects, these tools are the preferred method to steer the drilling. HDD needs accurate guidance to prevent cross boring into other utility lines or deviating from the planned bore path.


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