For traps where drilling fails, a decision must be made to abandon exploration.
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For traps that have obtained oil and gas flow, early reservoir description, Indicated PIIP and Inferred PIIP of reserves calculation are required.
The main basis of the decision-making of play optimization includes：
A. Main target layer structure contour
B. Division and evaluation level of known oil and gas fields and traps
C. Important exploration well s and petroleum discovery
D. The size sequence distribution of reservoirs in the play
Commonly used resource evaluation methods of play include:
A. Trap addition method
B. Reservoir scale sequence method
C. Extrapolation of exploration trend
D. Resource abundance analogy
The following belong to the product superposition of multiple information superposition evaluation method：
A. Superimposition of trap type and trap depth
B. The area of source rock overlaps and the intensity of hydrocarbon generation
C. Reservoir porosity and permeability
D. Abundance and types of organic matter in source rocks
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