Noise-control

From Wikimarcellus

The equipment used for drilling and hydro-fracturing shale makes noise and vibrations that may be heard or felt up to 1,000 feet away. This is particularly a problem when drilling takes place in urban areas.

Also, equipment used to lower and raise drilling pipes often have brakes that squeak. 12-cylinder engines brought in on flatbed trucks to power compressors and pumps are a major source of loud noise from hydro-fracturing.

One persistent source of noise associated with wells is the compressors which pump gas into the pipeline system. Whereas noise from drilling is primarily a short term but rather acute issue, gas compressors run continuously once the well is producing.