According to study on the 15th sands group of the second
Member of Shahejie Formation in Tuo142 of Northeast slope
in Dongying Sag , the sedimentary facies and microfacies of
the second Member of Shahejie Formation are divided , the
reservoir characteristics are described , the sedimentary
models of reservoir are founded , the control factors of pool-
forming in slope are discussed , and the model of pool2forming
is produced. This work can point out the direction of oil and
gas exploration in this area.