Assertion: natural gas | /r/Synonym | associated gas
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Natural gas that comes from oil wells is sometimes called associated gas.
text: Natural gas can be "associated" (found in oil fields), or "non-associated" (isolated in natural gas fields), and is also found in coal beds (as coalbed methane).
text: Such natural gas is known as associated gas; it is often considered to be the gaseous phase of the crude oil and usually contains some light liquids such as propane and butane .
text: Natural gas also occurs with deposits of crude oil, and this natural gas is called associated natural gas.
text: Natural gas from gas wells and condensate wells is called non-associated gas because it is extracted on its own and not as a by-product of oil drilling.