【摘要】 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。更多还原

【Abstract】 The paper presents time-lapse seismic practices in YC13-1 and DF1-1,two offshore gas fields in South China Sea.The drained blocks and residual gas distribution of YC13-1 Gas Filed are predicted by time-lapse seismic data interpretation combined with core measurement.Based on YC13-1 time-lapse seismic study,a systemic time-lapse seismic study of DF1-1 Gas Field is conducted.In the study,several difficulties have been overcome: dataset matching in time-lapse data processing,calibration of time-lapse data with well information,and pressure decrease in blocks while the gas saturation and the gas water contact unchanged.The time-lapse seismic results are applied to update depletion plan,and the new data show it will get better recovery and better benefits.更多还原