DISCUSS ON MEANING AND MOSTLY TYPE OF COMPARTMENT

Compartment is an important and universal structure in sediment basin,and its basic character is provided with barriers or seals for liquid and energy in three dimensions space.It has relative separability,and its liquid and energy could exchange with environment under relevant condition.It always is important geology entity forming and preserving of giant and middle sized oil-gas field.Not only overpressure and underpressure but also normalpressure compartment exist in nature,but the later often was overlooked.The giant and middle sized oil-gas field distributes mostly inside compartment containing hydrocarbon kitchen or near top and side seal of this kind of compartment.Study of compartment regard as one key of exploration decision-making process and the probability of discovery of giant and middle sized oil-gas field.