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针对地球物理油气综合检测技术在崖南凹陷及其周边地区气层识别中应用效果不佳的问题,提出了新的研究思路,即分层系研究崖南凹陷周边凸起(低凸起)已钻构造的岩石物理参数变化规律、流体相态变化及其对应的AVO响应特征,建立不同层系的AVO正演模型。上述研究成果得到了研究区已钻构造的验证,并应用于新目标区崖城19-3复合圈闭的气层识别。
Aiming at the problem that the integrated geophysical oil and gas detection technology is not effective in the recognition of the gas layers in the Yalong Sag and its surrounding areas, a new research idea is put forward, that is, the stratigraphic studies on the convex (low convex) The petrophysical parameters of the drilling structure, the change of the fluid phase and the corresponding AVO response characteristics are established to establish the AVO forward model of different strata. The above research results have been validated by the drilling structure of the study area and applied to the gas layer identification of the Yacheng 19-3 composite trap in the new target area.