Halliburton fracs more wells than any other company. It is therefore hardly surprising that a Halliburton company, Landmark, is developing cutting edge tools to optimize the drilling of successful wells in unconventional reservoirs.

Electromagnetic surveying is one of the least well understood of the non-seismic exploration techniques. There are various acquisition choices to be made - for example it can be undertaken using both horizontal and vertical transmitters/receivers. To understand the physics it pays off to use an analogy with heat waves.