Chapter 4

Identification and Prediction of Volcanic Facies

Volcanic facies is of great importance for reservoir prediction because it controls the type, degree of development, and distribution characteristics of pores and fractures in volcanic rocks; affects the type and intensity of later diagenesis; and determines the distribution of favorable facies belts [1]. The identification criteria and models for different lithofacies are established on the basis of volcanic facies classification. Following the technical approaches of proceeding from single wells to a profile, then to a 2D plane and finally to 3D space, volcanic facies can be identified and their distribution predicted, including quantitative characterizations of their size, shape, and ...

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