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随着地震勘探难度增加,地震资料解释多解性问题日益凸显。地震波在遇到粘滞性的油气层位时候会发生高频吸收的过程,依据此原理,对衰减参数的提取,为油气的发掘提供了方向。吸收系数方法技术对于油气藏的发现具有很大的贡献,形成一套针对于不同岩性的储层,采用不同方法的吸收系数技术,且结合当地的石油地质情况,研究波的传播规律,有着不错的前景。计算介质的吸收性质及其横向的变化可以用来预测地下岩石储层的岩性,厚度和是否含油气性,这为寻找到有效油气储层提供了一个重大突破口。本论文研究的目的是利用川南地区油气藏的地震资料,反演油气储层的吸收系数,从而确定储层的分布和油气存在的范围。
With the difficulty of seismic exploration increasing, the problem of multi-solution of seismic data interpretation has become increasingly prominent. According to this principle, the extraction of attenuation parameters provides the direction for the exploration of oil and gas. Absorption coefficient method technology has great contribution to the discovery of oil and gas reservoirs, forming a reservoir for different lithology, using different methods of absorption coefficient technology, combined with the local petroleum geology, research wave propagation law, with Good prospects. Calculating the absorption properties of the media and their lateral variations can be used to predict the lithology, thickness and hydrocarbon-bearing properties of underground rock reservoirs, providing a major breakthrough in finding effective oil and gas reservoirs. The purpose of this paper is to use the seismic data of reservoirs in southern Sichuan to invert the absorption coefficients of oil and gas reservoirs to determine the distribution of reservoirs and the extent of oil and gas.