Research On Predication Technique Of Deep-buried Volcanic Reservior

Because the deep-buried volcanics of Xujiaweizi Rift have multivariant spatial distribution, facies, physical property and large constructive latitude, indistinct lithology and electric characteristic, less deep exploration wells, so it is very hard to accurately forecast the deep-buried volcanics reservoir, in result comprehensive utilization several subject and technology to forecast the reservoir is became inevitable. Use the logging crossplot method to identify lithology, imaging logging can recognition the reservoir type and determined the characteristics of the deep-buried volcanics. Use coherence technology to research the spatial distribution of fault and micro-fracture, the abnormal of geological structure and characteristics of the spatial distribution of lithology. Use Comprehensive well and geological constrained seismic inversion technology to make the wave impedance profile. Comprehend the information of logging, geology, seismic, use the technology of Coherence, lump slice, stereoscopic display to make the fine structure characterization of seismic data. Basis lots of the seismic profiles and level slice, analyse the fundamental seismic characteristics of the volcanic rocks, and thus formed the fundamental recognition mode of volcanics. Basis the information of seismic and geology, comprehensive utilization the method of lithology, facies analyse, rock thickness, seismic profile to find the crater and its major development zone.