关键词: 非常规油气, 地球物理技术, 成藏地质, 问题, 新技术方法, 建议

Abstract: There are abundant unconventional oil and gas resources in China, and they feature in multiple reservoir types, low porosity, and low permeability. At present, some unconventional geophysical techniques are mainly used for exploration, such as the crack detection technique, the seismic attributes and inversion techniques. Because the lithological characteristics and reservoir accumulation conditions are more complicated, the application of conventional geophysical exploration techniques is difficult, for example, rock physics analysis is single relatively, conventional seismic imaging techniques could not meet the demand of exploration, and reservoir modeling is simple, etc. Now a series of new techniques and new methods have been initially applied to unconventional oil and gas exploration, for instance, million-channel seismograph and digital geophone are applied to acquisition, wave equation prestack reverse time migration techniques are applied to imaging, and full-waveform inversion techniques are used for constructing accurate velocity field, etc. At last, this paper put forward some suggestions for speeding up the development of Chinese unconventional oil and gas geophysical exploration techniques in terms of hardware and software facilities, research on new technical methods and their application

Key words: unconventional oil and gas, geophysical technology, accumulation geology, problem, new technology and method, suggestion