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本文介绍了崖城13-1、东方1-1两个海上气田时移地震的应用与实践。文章通过介绍岩石物理实验、时移地震资料处理、综合解释等方面的研究与分析,对崖城13-1气田的生产动用区块、剩余气分布进行了分析和预测,并在此基础上对东方1-1气田进行了系统的时移地震综合研究。在东方1-1气田的时移地震研究过程中,克服了多批次地质资料的匹配处理、无法直接用井资料进行地震动态标定、气田开发导致开发区块压力下降而各气层组气水边界基本不变等难题,取得了很好的研究成果,研究成果已被应用于气田开发调整方案的设计。开发调整井资料显示东方1-1气田时移地震预测结果正确,可使气田提高一定的采收率。
This paper introduces the application and practice of time-shifted earthquakes in two offshore gas fields, Yacheng 13-1 and East 1-1. By introducing the research and analysis of rock physics experiments, time-lapse seismic data processing, and comprehensive interpretation, the article analyzes and predicts the production-use blocks and residual gas distribution in Yacheng 13-1 gas field, and on this basis, East 1-1 gas field conducted a systematic study of time-lapse seismic. During the study of the time-lapse seismic in the East 1-1 gas field, the matching processing of multiple batches of geological data is overcame and the seismic dynamic calibration can not be performed directly with the well data. The gas field development causes the pressure in the development block to drop while the gas- The boundary is basically the same and other difficult problems, and achieved good research results, the research results have been applied to the gas field development and adjustment program design. The development of well data shows that the prediction of the time-shifted earthquakes in Dongfang 1-1 gas field is correct and can increase the recovery rate of the gas field.