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随着勘探区域近地表结构复杂程度地增加,以往那些在油气勘探中发挥了重要作用的单一静校正方法,越来越难以适应现今勘探对资料构造形态和成像品质的要求。因此通过尽可能多的表层资料信息,分层系、分阶段,有针对性地应用不同方法建立综合表层模型,是静校正技术发展的新趋势。经泉1井三维的实践证明,以表层资料解释及可视化模型时时关联互动为基础,从简单到复杂、逐级迭代相互约束的综合应用新技术,能有效反演并校正复杂构造区浅地表结构。不仅能提高地震资料成像的精度,改善构造形态,还能在一定程度上避免野外微测井采集数量的过度增加,减少勘探费用。
As the complexity of near-surface structures in exploration areas has increased, single static correction methods that have played an important role in oil and gas exploration in the past have become more and more difficult to meet the requirements of current exploration for data structure and imaging quality. Therefore, it is a new trend of static correction technology to develop a comprehensive surface model by using as many as possible surface information information, stratification, stages and targeted application of different methods. According to the three-dimensional practice of Well Quan 1, it is proved that the comprehensive application of new technologies based on surface-level data interpretation and temporal and temporal correlation of visualization models, from simple to complex, and iteratively constrained iteratively, can effectively invert and correct shallow surface structures . It can not only improve the accuracy of seismic data imaging and improve the structural morphology, but also avoid the excessive increase of the number of field micro-logging acquisition to a certain extent and reduce the exploration cost.