利用地震资料作储层预测需注意的问题

NOTICED PROBLEMS ESSENTIAL FOR PRE DICTING RESERVOIRS BY USE OF SEISMIC DA TA

储层预测工作是油气勘探、开发的一个重要环节。但由于地下地质情况复杂多变 ,受资料品质、预测方法及处理人员水平等多种因素影响 ,使其成为一项难度很大的工作。目前广泛利用地震资料 ,并结合测井、钻井资料 ,采用各种反演、属性提取、聚类分析等方法进行储层预测 ,已经见到不少成功范例。但是 ,目前在做这项工作时 ,也存在一些问题和误区 ,文章从原始资料品质、采样率和分辨率、钻井测井资料的使用、处理方法、参数和色标等方面对储层预测结果的影响进行了分析和讨论 ,同时也对预测成果的解释应用、减少解释的多解性等方面提出相关的看法和建议 ,以促进储层预测技术的进一步发展。

Reservoir prediction is an important link in oil/gas exploration and development, however it is also a very difficult work because of its being influenced by many factors, such as complicated subsurface geological condi tions, data quality, prediction method and processing per-sonel's intellectual level, etc. In combination with the log ging and drilling data, the seismic data have been widely ap plied to reservoir prediction at present through various inver sions, attribute extraction and cluster analysis, etc, and there have been many successful examples there. But there also exist some problems and misunderstanding in doing such a work currently. In the paper, the influences of original da ta quality, sampling rate and resolution factor, drilling and logging data s utilization, processing methods, parameters and color code, etc, on reservoir prediction results are ana lyzed and discussed, and the relevant views and suggestions the interpretation and application of achievements and the de crease in multi-solvability of interpretation are put forward, thus promoting the further development in reservoir predic tion techniques.