Abstract— The fluctuations of the price of crude oil is pushing the oil companies to increase the investments in seismic exploration of new oil and gas reservoir. Seismic exploration requires a large number (500 ÷ 2000 nodes/sqkm) of sensors (geophones or accelerometers) to be deployed in outdoor over large areas (≥ 20 sqkm) to measure backscattered wave fields. A storage/processing unit (sink node) collects the measurements from all the geophones to obtain an image of the sub-surface in real-time. Current connectivity is cable based and requires hundreds of kilometers of cabling causing delays, high logistic costs and low imaging quality. This paper serves as a tutorial to introduce the basic principles of seismic acquisition systems from a wireless communication perspective and provides a number of requirements/specifications for the physical, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration. The Wireless Geophone Network (WGN)...