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绥中36—1作为中海油主力注水生产、疏松砂岩稠油油田,提高采收率成为当前的主要技术方向。时移地震作为提高采收率的主要地球物理手段,使之成为主要的研究方向。本文阐述了我们利用已有的生产数据、油藏认识的可行研究,即利用动态及历史拟合的油藏模型,分析油藏可能时移地震响应,寻找时移地震响应在时空的分布特征。一方面可以分析在本地区应用时移地震技术的可行性;另一方面对第二次甚至第三次采集时移地震数据的时机进行分析。经过分析认为绥中36—1的时移地震响应除受到疏松储层的影响外,将受油藏脱气的影响。并认为生产10年后采集时移地震数据有相当的可行性。
Suizhong 36-1 as the main force of CNOOC water injection production, unconsolidated sandstone heavy oil fields, increasing oil recovery has become the current main technical direction. Time-shifted earthquakes as the main geophysical means to enhance oil recovery make it a major research direction. In this paper, we elaborate on the feasibility of our existing production data and reservoir understanding, that is, using dynamic and historical reservoir models to analyze the time-dependent seismic responses of reservoirs and to find the distribution of seismic responses in time and space. On the one hand, the feasibility of applying time-lapse seismic techniques in the region can be analyzed; on the other hand, the timing of the second and even third time-shifted seismic data can be analyzed. After analysis, it is concluded that the seismic response of Suizhong 36-1 will be affected by degassing of reservoirs except for the influence of loose reservoirs. It is quite feasible to acquire time-shifted seismic data after 10 years of production.