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地震资料采集、处理、解释及岩石地球物理等技术的发展，推动了AVO技术的广泛应用，该技术在碎屑岩中的应用在国内外已有不少成功的实例。碳酸盐储层岩由于本身的独特性质和特点，使其充气后，v_p没有明显减低，泊松比变化不大，加之碳酸盐岩相变产生强的各向异性等原因的影响，使得AVO技术在碳酸盐储层岩中成功应用的实例不多。文章针对鄂西、渝东的碳酸盐岩储层复杂的特点，应用沿目的层的小时窗AVO分析、AVO综合响应标定及交绘图分析、AVO属性对比分析相结合的方法来对该地区的碳酸盐岩储层含气性进行了检测，实例证明该AVO综合分析方法对碳酸盐岩储层中的油气检测是行之有效的。

APPLICATION OF AVO TECHNIQUE IN COMPLEX CARBONATE RESERVOIRS

The application of AVO (amplitude versus offset) technique has been greatly promoted along with the development in the seismic data acquisition,processing and interpretation methods and the lithogeophysical methods,and has had quite a few successful cases in studying clastic rocks at home and abroad.However,only a few successful cases of applying the AVO technique to carbonate reservoirs have been found because of the unique properties of carbonate reservoirs,which causes vp to be unnoticeably reduced and poissons ratio to be small changed after their being charged with gas,and of the influence of strong anisotropism caused by carbonate rock facies change.In consideration of the complex properties of the carbonate reservoirs in West Hubei and East Chongqing,their gas potential examination was carried out by use of the method of combining the target zone’s small time window AVO analysis and AVO comprehensive response calibration with the intersection chart and AVO attribution contrasting analyses.The results indicated that it was feasible to examine the oil and gas in carbonate reservoirs by use of such a comprehensive method.