A gas well is a type of oil well that produces natural gas instead of crude oil. However, there are several synonyms for the term "gas well" that can be used interchangeably. For example, it's often referred to as a natural gas well, gas field, or gas reservoir. Additionally, it can also be known as a methane well, shale gas well, or unconventional gas well. These synonyms all refer to the extraction of natural gas from underground reservoirs. The use of these terms can help to diversify language use in the energy field and allow for more nuanced discussions about the extraction of natural gas.