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以胜利油区继承性数据和开发阶段最新采集的三维地震数据为实例,探讨了时移地震的可行性实践,研究了多次采集的地震数据在开发中的应用。分析了引起采集地震数据不一致的因素,并进行叠前的一致性及叠后的互均化处理,消除由于采集、处理不一致对地震数据在能量、频率、相位等方面的影响,突出油藏变化带来的地震属性差异;与生产动态数据相结合,分析油藏的连通性以及剩余油分布,指导注采方案调整,最终达到提高采收率的目的。胜利油区的探索实践表明,时移地震可以有条件地开展实际试验研究与应用,如何利用重新采集的高精度三维地震数据并综合油藏工程等技术解决更多的开发难题是一个策略问题。在油田开发实际应用中应当协同考虑时移和多次采集地震数据2方面的研究与应用。
Taking the succession data of Shengli Oil Region and the latest 3D seismic data collected during the development phase as an example, the feasibility of time-shifted earthquakes is discussed and the application of seismic data collected in multiple acquisitions is studied. Analyzes the factors causing inconsistency of collected seismic data, and performs prestack consistency and post-stack cross-averaging processing to eliminate the influence of seismic data collection, processing and inconsistency on seismic data in terms of energy, frequency and phase, Which can bring about the difference of seismic attributes. Combined with the production dynamic data, the reservoir connectivity and remaining oil distribution are analyzed to guide the adjustment of injection and production planning and ultimately achieve the goal of enhanced oil recovery. The exploration and practice of Shengli Oil Region shows that the time-shifted earthquakes can conduct practical experimental research and application under conditions. How to solve more development problems by using resampled high-precision 3D seismic data and integrated reservoir engineering is a strategic issue. In the practical application of oilfield development, the research and application of time-shifted and multiple acquisition of seismic data should be considered together.