Identification Of Deep Volcanic Rock Reservoirs With Integrated Geophysical Prospecting Techniques: An Exploration Case

The fine identification of volcanic reservoirs has long been a difficult problem in oil and gas exploration. Because of the laterally large variation in lithology and lithofacies of the volcanic rocks, as well as the poor distribution regularity, it is difficult to identify them effectively with a single geophysical exploration method. It is a difficult problem and a challenge for geophysical methods to improve the identification and recognition ability of complex geological bodies such as volcanic rocks. The aims in this paper are to establish the physical information template of different types of volcanic rocks by analyzing the physical properties of volcanic rocks, combine information on gravity, magnetic and electric anomaly and seismic attribute interpretation technique to rapidly and effectively predict the distribution range of volcanic rocks in the plane. Identification of volcanic rocks with multiple-geophysical data can reduce ambiguity caused by a single geophysical data and realize the fine description of deep volcanic rocks from qualitative to quantitative, and provide favorable plays for oil and gas reservoir developed in volcanic rocks and improve the success rate of drilling.