摘要
胜利油田已经完成了 189块三维地震数据的野外采集 ,为了实现区带地质构造和油气富集规律的整体研究 ,有必要进行多块三维地震数据的连片处理。本文通过对实际连片处理数据的分析 ,总结出了一套适合复杂地区三维地震数据连片处理的基本流程。连片处理过程中针对各区块的非一致性 ,采用了相应的处理方法和手段 ,使得连片数据相位、极性一致性好 ,频率、能量 (或振幅 )区块间拼接带自然合理 ,超覆、不整合、断裂、尖灭等地质现象得到了较好的反映。从整个资料效果看 ,全区地质现象丰富 ,地层齐全 ,具有较高的信噪比和连续性 ,为提高地震资料解释精度和钻探成功率打下了良好的基础。
Total 189 blocks of 3-D seismic data acquisition have been finished in Shengli Oilfield.In order to integrative studying regional geologic structures and role of oil accumulation,it is necessary to implement the data processing joining several 3-D seismic surveying blocks together.The paper summed up a set of basic flow for data processing joining several 3-D seismic surveying blocks together suitable for complex areas after analyzing this real data processing.During this processing,we adopted relative processing methods and tools aimed at inconsistence between blocks,which made joined 3-D data blocks have good consistence of phase and porosity and natural and reasonable frequency and energy (or amplitude),it also made the geologic feature such as overlap,unconformability,fracture and pinchout have good reflection on the sections.It is seen from total effects that the geologic feature in whole region is abundant,having complete beds and higher signal-to-noise ratio and continuity,which laid a good foundation for improving interpretation precision of seismic data and successful drilling rate.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2004年第5期579-585,共7页
Oil Geophysical Prospecting
