王91块四维地震资料处理解释及应用研究

4D Seismic Processing in Block Wang-91 and Application in Reservoir Development

王91块采出程度低、含水高、剩余油潜力不清。在利用四维地震资料进行剩余油潜力监测的岩石物理和三维地震资料基础上,经过面元重置、互均衡化处理,提取了多种四维地震资料的差异性,并与油藏动态进行整合,优选出对油藏动态比较敏感和反映剩余油分布的RMS属性。结合油藏数值模拟对四维地震资料进行了解释,结果表明,四维地震资料的差异性基本反映了油藏的动态变化,可以用于指导该油藏的进一步挖潜。

Four-dimensional seism, which was a new technology developed in the late 20th century, was used as an important tool for enhanced oil recovery in reservoir management. However, because of the complexity of continental sedimentation in China the oil industry was to use four-dimensional seismic for remaining oil surveillance. Study shows Block Wang-91 has the potential capacity for four-dimensional seism based petrophysical data and 3D seismic data. After surface element reset and cross equalization processing, by using the difference of four-dimensional seism, in concordance with petroleum reservoir performance, RMS seism is optimized for the sensitivity to reservoir performance and remaining oil . coupled with reservoir numerical simulation, the interpretation results shows that the difference of four-dimensional seism reflects the reservoir performance and could be used as a guide for reservoir development.