line-level: 2" class=MsoNormal>Genesis of Produced Water in Shan2 Reservoir of Zizhou Gas Field
Taking the Shan2 gas reservoir in Zi Zhou gas field as an example, based on wire-line logging and trial production information, the origination of produced water is classified as aquifer,tight sand aquifer and remnant water in payzone, and the discrimination between them is also clarified. It is concluded that the distribution of sand channel, the micro-tectonics of the zone, the migration process of hydrocarbon and the heterogeneity of sand are the controlling factors of aquifer distribution in lithologic gas reservoir. The classification of aquifer can be a key role in the deployment of production well and offers reference for the development of the seminal gas reservoir.