The lithology identification method and characteristics of volcanic lava

With the continuously increasing demand for hydrocarbon resources in the world,the exploration and development of volcanic rock(which generally refers to volcanic lava) reservoir has become the new bright spot for increasing oil reserves and production.Lithology identification is not only the base of logging reservoir evaluation,but also an important step in the research of volcanic rock reservoir.The characteristics of lava rock and log response characteristics of volcanic rock are summarized,the current methods of the identification of the lava are also analyzed here.and it is concluded that the cross plot technology by conventional logging data applied to identify lithology is feasible.The results of identification are proved to be fit with those of reality.