|For Standard||PRODML v2.0|
Used to designate each distinct subsurface accumulation of economically significant fluids. This data object primarily serves to identify the source of one or more fluid samples and provides a connection to the geologic environment that contains it. Characteristics of the fluid system include the type of system (e.g., black oil, dry gas, etc.), the fluid phases present, and its lifecycle status (e.g., undeveloped, producing, etc.).