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油田开发进入到后期,低序级断层的描述显得尤为重要,但是低序级断层的主要存在着断层对比识别难度大、地震描述难度大、井斜数据存在问题、精细修正难度大等问题,致使复杂断裂系统的描述精度较低,剩余油分布认识不清。结合濮城油田濮45块沙三中油藏的特点,通过研究低序级断层形成机制,运用地震识别技术、井斜资料的甄别与校正技术及精细对比等技术,重构断裂系统,指导了油藏开发,取得了显著效果。
It is very important to describe the low-grade fault in the later stage of oilfield development. However, there are some problems in the low-order fault fault identification, such as difficulty in recognizing faults, difficulty in describing seismic data, existence of well deviation data and difficulty of fine correction, The accuracy of complex fracture systems is poorly described and the distribution of remaining oil is poorly understood. Combining with the characteristics of PuSanzhongzhong reservoir in Pucheng Oilfield, the fault system is reconstructed through the study of low-grade fault formation mechanism, the technology of seismic identification, the identification and correction of well deviation data and fine comparison, Reservoir development, has achieved remarkable results.