地震多属性分析技术在含气储层预测中的应用

APPLICATION OF SEISMIC ATTRIBUTES ANALYSIS TECHNOLOGY TO GAS RESERVOIR PREDICTION

利用地震多属性分析技术,可以对地震数据进行各种数学、物理变换,提取出包含其中的岩性、含油气性、物性信息,为含油气储层预测提供技术支持,使地震属性模式识别技术在油气储层预测中得到了广泛的应用。在地震属性优选的基础上,应用多属性聚类分析技术,实现地震多属性与储层信息的结合,使特定的聚类区能可靠地反映含油气分布,同时聚类分析结果也可成功地预测研究区ZH2_1气组的有利含气区,为进一步勘探开发提供了目标区域。

Seismic attributes anaIysis technology,which uses mathematic and physical conversion into seismic data interpretation,is adopted to extract the information about lithology,＇gas-oil occurrence and physical property of a reservoir so as to provide technological support to gas-oil reservoir prediction. The pattern recognition technology of Seismic attributes has also been widely applied in the oil and gas reservoir prediction. Upon selection of optimal seismic attributes, we used the multi attribute clustering technology to establish the connection between multi attributes and reservoir information. The specific cluster area may indicate an oil and gas rich area. We made prediction for the gas group of ZH2 _1 in the Zhu-3 Depression. Favorable target area was selected for further exploration and development.