Summary of research methods and exploration technologies for volcanic reservoirs

In recent years,the difficulty and risk have increased with the improvement of exploration and development for the structural and siliciclastic hydrocarbon reservoirs,and with the continuous discovery of the volcanic hydrocarbon reserves widely distributed in the Mesozoic and Cenozoic basins in China.The volcanic-related rock reservoirs as a new field of hydrocarbon exploration and development has greatly attracted the attention and regard of the geologists in the petroleum enterprises worldwide.The summation and study on the research methods,successful experiences and some exploration and development technologies for the volcanic reservoirs abroad and at home are benefit to the hydrocarbon exploration effects.Generally,the research and exploration methods for the volcanic reservoirs mainly include geophysical methods of seismic information recognition,magnetotelluric survey,high-precision gravity-magnetic method,time domain electric-magnetic depth sounding,frequency domain continuous electric-magnetic profile,geophysical logging as well as the volcanic chronology,petrology,petrography and petrochemistry,volcanic-reservoir characteristics and diagenesis,pool-forming and pool-type analysis.