川东上二叠统生物礁气藏属碳酸盐岩岩性圈闭，礁岩和非礁地层物性差异小，非均质性强，地震识别预测难度大，多解性问题突出。在进一步研究生物礁气藏分布规律，深化对地震异常现象认识的基础上，提出了以寻找较大型的陆棚边缘礁气藏为主要目标，以沉积相—地震相精细解释为核心内容，以地质为基础，测井为桥梁，地震为主要拓展手段的生物礁多元信息综合预测方法。包括三个方面相互有机联系的工作：①通过大量钻井和测井资料对比研究，重塑上二叠统岩相古地理环境，建立了本区长兴组碳酸盐岩缓坡相沉积相模式；②精细对比解释地震相及其变化的地质含义，建立了与沉积相模式对应的地震相变响应模式，进而解释沉积微相展布，预测陆棚边缘礁发育的有利地区；③针对有利相带内的边缘礁目标，探索应用各种正反演精细处理手段，进一步落实有利的勘探目标。在实际勘探应用中取得较好的效果 The upper Permian biohermal reservoirs in eastern Sichuan are carbonate lithologic traps, with little difference in physical properties between reefs and non-reef formations, and strong heterogeneity. Therefore, it is very difficult to predict and identify the earthquake and the problem of multi-solution is prominent. On the basis of further studying the distribution rule of the biohermal gas reservoirs and deepening understanding of the anomaly phenomena of the earthquakes, it is proposed to look for the reef gas reservoirs with larger marginal margins and to interpret the sedimentary facies-seismic phases as the core. Geological, logging as a bridge, earthquakes as the main means of expansion of the reef multi-information comprehensive forecasting method. Including the work of three organic links with each other: (1) Through the comparative study of a large number of drilling and well logging data, the lithofacies palaeogeographic environment in the Permian is reshaped and the facies facies model of Changxing Formation carbonate facies is established; (2) By comparing and analyzing the seismic facies and the geological meaning of the changes, we established a seismic facies-response model corresponding to the sedimentary facies pattern, and then interpreted the sedimentary microfacies distribution to predict the favorable areas for the development of marginal reefs in the shelf. Edge reef targets, exploration and application of a variety of positive and negative precision processing means to further implement the favorable exploration targets. In the actual exploration and application achieved good results